151
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Warner BM, Dowhanik S, Audet J, Grolla A, Dick D, Strong JE, Kobasa D, Lindsay LR, Kobinger G, Feldmann H, Artsob H, Drebot MA, Safronetz D. Hantavirus Cardiopulmonary Syndrome in Canada. Emerg Infect Dis 2021; 26:3020-3024. [PMID: 33219792 PMCID: PMC7706972 DOI: 10.3201/eid2612.202808] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Hantavirus cardiopulmonary syndrome (HCPS) is a severe respiratory disease caused by Sin Nombre virus in North America (SNV). As of January 1, 2020, SNV has caused 143 laboratory-confirmed cases of HCPS in Canada. We review critical aspects of SNV virus epidemiology and the ecology, biology, and genetics of HCPS in Canada.
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152
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Mayor J, Engler O, Rothenberger S. Antiviral Efficacy of Ribavirin and Favipiravir against Hantaan Virus. Microorganisms 2021; 9:microorganisms9061306. [PMID: 34203936 PMCID: PMC8232603 DOI: 10.3390/microorganisms9061306] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/14/2021] [Accepted: 06/15/2021] [Indexed: 02/07/2023] Open
Abstract
Ecological changes, population movements and increasing urbanization promote the expansion of hantaviruses, placing humans at high risk of virus transmission and consequent diseases. The currently limited therapeutic options make the development of antiviral strategies an urgent need. Ribavirin is the only antiviral used currently to treat hemorrhagic fever with renal syndrome (HFRS) caused by Hantaan virus (HTNV), even though severe side effects are associated with this drug. We therefore investigated the antiviral activity of favipiravir, a new antiviral agent against RNA viruses. Both ribavirin and favipiravir demonstrated similar potent antiviral activity on HTNV infection. When combined, the efficacy of ribavirin is enhanced through the addition of low dose favipiravir, highlighting the possibility to provide better treatment than is currently available.
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Affiliation(s)
- Jennifer Mayor
- Institute of Microbiology, University Hospital Center and University of Lausanne, CH-1011 Lausanne, Switzerland;
- Spiez Laboratory, Federal Office for Civil Protection, CH-3700 Spiez, Switzerland;
| | - Olivier Engler
- Spiez Laboratory, Federal Office for Civil Protection, CH-3700 Spiez, Switzerland;
| | - Sylvia Rothenberger
- Institute of Microbiology, University Hospital Center and University of Lausanne, CH-1011 Lausanne, Switzerland;
- Spiez Laboratory, Federal Office for Civil Protection, CH-3700 Spiez, Switzerland;
- Correspondence: ; Tel.: +41-213145103
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153
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Terças-Trettel ACP, de Melo AVG, de Oliveira RC, Guterres A, Fernandes J, Pereira LS, Atanaka M, Espinosa MM, Teixeira BR, Bonvicino CR, D’Andrea PS, de Lemos ERS. Orthohantavirus Survey in Indigenous Lands in a Savannah-Like Biome, Brazil. Viruses 2021; 13:v13061122. [PMID: 34207939 PMCID: PMC8230715 DOI: 10.3390/v13061122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/08/2021] [Accepted: 03/22/2021] [Indexed: 12/04/2022] Open
Abstract
In Brazil, the first confirmed cases of hantavirus cardiopulmonary syndrome in Indigenous populations occurred in 2001. The purpose of this study was to determine the seroprevalence of orthohantavirus infections in the Utiariti Indigenous land located in the southeastern region of the Brazilian Amazon. In December 2014 and 2015, a survey was conducted using an enzyme-linked immunosorbent assay in nine villages belonging to the Haliti–Paresí Indigenous communities. A total of 301 participants were enrolled in the study. Of the two study cohorts, the one from 2014 showed a prevalence of 12.4%, whereas the one from 2015 had a serum prevalence of 13.4%. Analysis of the paired samples of 110 Indigenous people who participated in both stages of the study enabled identification of four individuals who had seroconverted during the study period. Identifying the circulation of orthohantaviruses in the Utiariti Indigenous land highlights a serious public health problem in viral expansion and highlights the need to implement preventive measures appropriate to the sociocultural reality of these communities.
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Affiliation(s)
- Ana Cláudia Pereira Terças-Trettel
- Nursing Department, Mato Grosso State University Campus Tangara da Serra, Tangara da Serra 78300-000, MT, Brazil;
- Public Health Institute, Mato Grosso Federal University, Cuiaba 78060-900, MT, Brazil; (M.A.); (M.M.E.)
- Laboratory of Hantaviruses and Rickettsioses, Oswaldo Cruz Institute—FIOCRUZ, Rio de Janeiro 21040-900, RJ, Brazil; (R.C.d.O.); (A.G.); (J.F.); (L.S.P.)
| | | | - Renata Carvalho de Oliveira
- Laboratory of Hantaviruses and Rickettsioses, Oswaldo Cruz Institute—FIOCRUZ, Rio de Janeiro 21040-900, RJ, Brazil; (R.C.d.O.); (A.G.); (J.F.); (L.S.P.)
| | - Alexandro Guterres
- Laboratory of Hantaviruses and Rickettsioses, Oswaldo Cruz Institute—FIOCRUZ, Rio de Janeiro 21040-900, RJ, Brazil; (R.C.d.O.); (A.G.); (J.F.); (L.S.P.)
| | - Jorlan Fernandes
- Laboratory of Hantaviruses and Rickettsioses, Oswaldo Cruz Institute—FIOCRUZ, Rio de Janeiro 21040-900, RJ, Brazil; (R.C.d.O.); (A.G.); (J.F.); (L.S.P.)
| | - Liana Stretch Pereira
- Laboratory of Hantaviruses and Rickettsioses, Oswaldo Cruz Institute—FIOCRUZ, Rio de Janeiro 21040-900, RJ, Brazil; (R.C.d.O.); (A.G.); (J.F.); (L.S.P.)
| | - Marina Atanaka
- Public Health Institute, Mato Grosso Federal University, Cuiaba 78060-900, MT, Brazil; (M.A.); (M.M.E.)
| | - Mariano Martinez Espinosa
- Public Health Institute, Mato Grosso Federal University, Cuiaba 78060-900, MT, Brazil; (M.A.); (M.M.E.)
| | - Bernardo Rodrigues Teixeira
- Laboratory of Biology and Parasitology of Wild Mammals Reservoirs, Oswaldo Cruz Institute—FIOCRUZ, Rio de Janeiro 21040-900, RJ, Brazil; (B.R.T.); (C.R.B.); (P.S.D.)
| | - Cibele Rodrigues Bonvicino
- Laboratory of Biology and Parasitology of Wild Mammals Reservoirs, Oswaldo Cruz Institute—FIOCRUZ, Rio de Janeiro 21040-900, RJ, Brazil; (B.R.T.); (C.R.B.); (P.S.D.)
| | - Paulo Sérgio D’Andrea
- Laboratory of Biology and Parasitology of Wild Mammals Reservoirs, Oswaldo Cruz Institute—FIOCRUZ, Rio de Janeiro 21040-900, RJ, Brazil; (B.R.T.); (C.R.B.); (P.S.D.)
| | - Elba Regina Sampaio de Lemos
- Laboratory of Hantaviruses and Rickettsioses, Oswaldo Cruz Institute—FIOCRUZ, Rio de Janeiro 21040-900, RJ, Brazil; (R.C.d.O.); (A.G.); (J.F.); (L.S.P.)
- Correspondence: ; Tel.: +55-21-2562-1706
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154
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Min KD, Schneider MC, Cho SI. Association between predator species richness and human hantavirus infection emergence in Brazil. One Health 2021; 11:100196. [PMID: 33294581 PMCID: PMC7701261 DOI: 10.1016/j.onehlt.2020.100196] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 11/11/2020] [Accepted: 11/11/2020] [Indexed: 11/16/2022] Open
Abstract
Hantavirus infection is a rodent-borne disease (RBD) transmitted by urine or feces (as the natural reservoirs) with an annual estimated worldwide incidence of ~150,000 cases. Previous ecological studies suggested that higher species richness of rodents could decrease the risk of RBDs in humans, because the regulatory pressure of predators could reduce contact among rodents, and between humans and rodents. Using surveillance data, we investigated the association of predator species richness with hantavirus infection emergence in 5562 Brazilian inland municipalities between 2007 and 2017. Multivariable logistic regression models were used for the analyses. Diurnal and non-diurnal predator species were independent explanatory variables in the models. Rodent species richness and demographic, socioeconomic, and environmental factors were used as covariates. During the study period, 1084 cases were reported in 429 municipalities. The results showed a reverse-U-shaped association between diurnal predator species richness and hantavirus infection emergence (odds ratio [OR] 0.463, 0.688, and 0.553 for the first [lowest], third, and fourth [highest] quartiles, respectively, using the second quartile as a reference), while higher non-diurnal predator species richness tended to be associated with higher emergence risk (OR 0.134, 1.065, and 2.708 for the first, third, and fourth quartiles, respectively). The difference in these associations illustrates the complexity of the effects of predator species richness on human RBDs, which require further investigation in follow-up studies. The results showed a close link between environmental factors and public health, emphasizing that the One Health concept should be employed to understand the dynamics of RBDs.
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Affiliation(s)
- Kyung-Duk Min
- Institute of Health and Environment, Graduate School of Public Health, Seoul National University, South Korea
| | - Maria Cristina Schneider
- Department of International Health, School of Nursing and Health Sciences, Georgetown University, USA
- Institute of Collective Health Studies, Federal University of Rio De Janeiro, Brazil
| | - Sung-il Cho
- Institute of Health and Environment, Graduate School of Public Health, Seoul National University, South Korea
- Department of Health Sciences, Graduate School of Public Health, Seoul National University, South Korea
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155
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Evidence of Hantavirus circulation among municipal street sweepers, southwest of Iran. Virusdisease 2021; 32:251-254. [PMID: 34350315 DOI: 10.1007/s13337-021-00694-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 05/04/2021] [Indexed: 11/27/2022] Open
Abstract
Hantaviruses are rodent-borne zoonosis pathogens that cause hemorrhagic fever with renal syndrome (HFRS) and Hantavirus cardiopulmonary syndrome (HCPS) in humans. Rodents spread the virus via their excretions. The outbreak of Hantaviruses pose a significant public health problem. The epidemiology and history of Hantaviruses in Iran is not clear and regardless of the data from the few available studies, little is known about its epidemiology in this country. Herein, we discuss the prevalence of IgG antibody against Hantavirus serotypes in 385 street sweepers from southwest of Iran. Serum samples were investigated, using Hantavirus Pool 1 "Eurasia" IgG kit and Pool 2 "America" ELISA IgG kit (Euroimmun, Germany) to detect IgG antibodies against Old and New World Hantaviruses. The results showed a specific IgG antibody in two samples (0.5%). Both of seropositive cases had specific IgG antibody against Old World Hantaviruses. The data of the current study along with the previous data, indicate the circulation of Hantaviruses in Iran. Hence, the risk of Hantavirus infection in high-risk groups should be considered as a serious health issue.
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156
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Bae JY, Kim JI, Park MS, Lee GE, Park H, Song KJ, Park MS. The Immune Correlates of Orthohantavirus Vaccine. Vaccines (Basel) 2021; 9:vaccines9050518. [PMID: 34069997 PMCID: PMC8157935 DOI: 10.3390/vaccines9050518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/01/2021] [Accepted: 05/10/2021] [Indexed: 01/09/2023] Open
Abstract
Zoonotic transmission of orthohantaviruses from rodent reservoirs to humans has been the cause of severe fatalities. Human infections are reported worldwide, but vaccines have been approved only in China and Korea. Orthohantavirus vaccine development has been pursued with no sense of urgency due to the relative paucity of cases in countries outside China and Korea. However, the orthohantaviruses continuously evolve in hosts and thus the current vaccine may not work as well against some variants. Therefore, a more effective vaccine should be prepared against the orthohantaviruses. In this review, we discuss the issues caused by the orthohantavirus vaccine. Given the pros and cons of the orthohantavirus vaccine, we suggest strategies for the development of better vaccines in terms of pandemic preparedness.
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157
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Yarovaya OI, Kovaleva KS, Zaykovskaya AA, Yashina LN, Scherbakova NS, Scherbakov DN, Borisevich SS, Zubkov FI, Antonova AS, Peshkov RY, Eltsov IV, Pyankov OV, Maksyutov RA, Salakhutdinov NF. New class of hantaan virus inhibitors based on conjugation of the isoindole fragment to (+)-camphor or (-)-fenchone hydrazonesv. Bioorg Med Chem Lett 2021; 40:127926. [PMID: 33705902 DOI: 10.1016/j.bmcl.2021.127926] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 02/05/2021] [Accepted: 02/25/2021] [Indexed: 11/20/2022]
Abstract
This work presents the design and synthesis of camphor, fenchone, and norcamphor N-acylhydrazone derivatives as a new class of inhibitors of the Hantaan virus, which causes haemorrhagic fever with renal syndrome (HFRS). A cytopathic model was developed for testing chemotherapeutics against the Hantaan virus, strain 76-118. In addition, a study of the antiviral activity was carried out using a pseudoviral system. It was found that the hit compound possesses significant activity (IC50 = 7.6 ± 2 µM) along with low toxicity (CC50 > 1000 µM). Using molecular docking procedures, the binding with Hantavirus nucleoprotein was evaluated and the correlation between the structure of the synthesised compounds and the antiviral activity was established.
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Affiliation(s)
- Olga I Yarovaya
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, Lavrent'ev av., 9, Novosibirsk 630090, Russia
| | - Kseniya S Kovaleva
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, Lavrent'ev av., 9, Novosibirsk 630090, Russia
| | - Anna A Zaykovskaya
- State Research Center of Virology and Biotechnology VECTOR, Rospotrebnadzor, Koltsovo, Novosibirsk Region 630559, Russia
| | - Liudmila N Yashina
- State Research Center of Virology and Biotechnology VECTOR, Rospotrebnadzor, Koltsovo, Novosibirsk Region 630559, Russia
| | - Nadezda S Scherbakova
- State Research Center of Virology and Biotechnology VECTOR, Rospotrebnadzor, Koltsovo, Novosibirsk Region 630559, Russia
| | - Dmitry N Scherbakov
- State Research Center of Virology and Biotechnology VECTOR, Rospotrebnadzor, Koltsovo, Novosibirsk Region 630559, Russia
| | - Sophia S Borisevich
- Ufa Institute of Chemistry, Ufa Federal Research Center, RAS, Octyabrya pr., 71, Ufa 450054, Russia
| | - Fedor I Zubkov
- Organic Chemistry Department, Faculty of Science, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russia
| | - Alexandra S Antonova
- Organic Chemistry Department, Faculty of Science, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russia
| | - Roman Yu Peshkov
- Novosibirsk State University, Pirogova St. 1, Novosibirsk 630090, Russia
| | - Ilia V Eltsov
- Novosibirsk State University, Pirogova St. 1, Novosibirsk 630090, Russia
| | - Oleg V Pyankov
- State Research Center of Virology and Biotechnology VECTOR, Rospotrebnadzor, Koltsovo, Novosibirsk Region 630559, Russia
| | - Rinat A Maksyutov
- State Research Center of Virology and Biotechnology VECTOR, Rospotrebnadzor, Koltsovo, Novosibirsk Region 630559, Russia
| | - Nariman F Salakhutdinov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, Lavrent'ev av., 9, Novosibirsk 630090, Russia
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158
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Martynova E, Davidyuk Y, Kabwe E, Garanina EE, Shakirova V, Pavelkina V, Uskova Y, Stott RJ, Foster TL, Markelova M, Goyal M, Gupta A, Bhola M, Kumar V, Baranwal M, Rizvanov AA, Khaiboullina SF. Cytokine, Chemokine, and Metalloprotease Activation in the Serum of Patients with Nephropathia Epidemica from the Republic of Tatarstan and the Republic of Mordovia, Russia. Pathogens 2021; 10:pathogens10050527. [PMID: 33925451 PMCID: PMC8145562 DOI: 10.3390/pathogens10050527] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/18/2021] [Accepted: 04/24/2021] [Indexed: 12/31/2022] Open
Abstract
Nephropathia Epidemica (NE), endemic to several Volga regions of Russia, including the Republic of Tatarstan (RT) and the Republic of Mordovia (RM), is a mild form of hemorrhagic fever with renal syndrome caused by infection with rodent-borne orthohantaviruses. Although NE cases have been reported for decades, little is known about the hantavirus strains associated with human infection in these regions. There is also limited understanding of the pathogenesis of NE in the RT and the RM. To address these knowledge gaps, we conducted comparative analyses of patients with NE in the RT and the RM. Clinical symptoms were more severe in patients with NE from the RM with longer observed duration of fever symptoms and hospitalization. Analysis of patient sera showed changes in the levels of numerous cytokines, chemokines, and matrix metalloproteases (MMPs) in patients with NE from both the RT and the RM, suggesting leukocyte activation, extracellular matrix degradation, and leukocyte chemotaxis. Interestingly, levels of several cytokines were distinctly different between patients NE from the RT when compared with those from the RM. These differences were not related to the genetic variation of orthohantaviruses circulating in those regions, as sequence analysis showed that Puumala virus (PUUV) was the causative agent of NE in these regions. Additionally, only the “Russia” (RUS) genetic lineage of PUUV was detected in the serum samples of patients with NE from both the RT and the RM. We therefore conclude that differences in serum cytokine, chemokine, and MMP levels between the RT and the RM are related to environmental factors and lifestyle differences that influence individual immune responses to orthohantavirus infection.
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Affiliation(s)
- Ekaterina Martynova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (Y.D.); (E.K.); (E.E.G.); (M.M.); (A.A.R.); (S.F.K.)
- Correspondence:
| | - Yuriy Davidyuk
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (Y.D.); (E.K.); (E.E.G.); (M.M.); (A.A.R.); (S.F.K.)
| | - Emmanuel Kabwe
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (Y.D.); (E.K.); (E.E.G.); (M.M.); (A.A.R.); (S.F.K.)
| | - Ekaterina E. Garanina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (Y.D.); (E.K.); (E.E.G.); (M.M.); (A.A.R.); (S.F.K.)
| | - Venera Shakirova
- Infectious Diseases Department, Kazan State Medical Academy, 420012 Kazan, Russia;
| | - Vera Pavelkina
- Infectious Diseases Department, National Research Ogarev Mordovia State University, 430005 Saransk, Russia; (V.P.); (Y.U.)
| | - Yulia Uskova
- Infectious Diseases Department, National Research Ogarev Mordovia State University, 430005 Saransk, Russia; (V.P.); (Y.U.)
| | - Robert J. Stott
- Faculty of Medicine and Health Sciences, School of Veterinary Medicine and Science, Sutton Bonington Campus, The University of Nottingham, Loughborough LE12 5RD, UK; (R.J.S.); (T.L.F.)
| | - Toshana L. Foster
- Faculty of Medicine and Health Sciences, School of Veterinary Medicine and Science, Sutton Bonington Campus, The University of Nottingham, Loughborough LE12 5RD, UK; (R.J.S.); (T.L.F.)
| | - Maria Markelova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (Y.D.); (E.K.); (E.E.G.); (M.M.); (A.A.R.); (S.F.K.)
| | - Mehendi Goyal
- Doconvid.ai, Bestech Business Tower, Mohali 160055, India;
| | - Abhimat Gupta
- Department of Computer Science and Engineering, Thapar Institute of Engineering and Technology, Patiala 147004, India;
| | - Mannan Bhola
- Department of Biotechnology, Thapar Institute of Engineering and Technology, Patiala 147004, India; (M.B.); (M.B.)
| | - Vinay Kumar
- Department of Electronics and Communication Engineering, Thapar Institute of Engineering and Technology, Patiala 147004, India;
| | - Manoj Baranwal
- Department of Biotechnology, Thapar Institute of Engineering and Technology, Patiala 147004, India; (M.B.); (M.B.)
| | - Albert A. Rizvanov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (Y.D.); (E.K.); (E.E.G.); (M.M.); (A.A.R.); (S.F.K.)
| | - Svetlana F. Khaiboullina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (Y.D.); (E.K.); (E.E.G.); (M.M.); (A.A.R.); (S.F.K.)
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159
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Differential pathogenesis between Andes virus strains CHI-7913 and Chile-9717869in Syrian Hamsters. J Virol 2021; 95:JVI.00108-21. [PMID: 33627395 PMCID: PMC8139648 DOI: 10.1128/jvi.00108-21] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Hantavirus cardiopulmonary syndrome (HCPS) is a severe respiratory disease caused by orthohantaviruses in the Americas with a fatality rate as high as 35%. In South America, Andes orthohantavirus (Hantaviridae, Orthohantavirus, ANDV) is a major cause of HCPS, particularly in Chile and Argentina, where thousands of cases have been reported since the virus was discovered. Two strains of ANDV that are classically used for experimental studies of the virus are Chile-9717869, isolated from the natural reservoir, the long-tailed pygmy rice rat, and CHI-7913, an isolate from a lethal human case of HCPS. An important animal model for studying pathogenesis of HCPS is the lethal Syrian golden hamster model of ANDV infection. In this model, ANDV strain Chile-9717869 is uniformly lethal and has been used extensively for pathogenesis, vaccination, and therapeutic studies. Here we show that the CHI-7913 strain, despite having high sequence similarity with Chile-9717869, does not cause lethal disease in Syrian hamsters. CHI-7913, while being able to infect hamsters and replicate to moderate levels, showed a reduced ability to replicate within the tissues compared with Chile-9717869. Hamsters infected with CHI-7913 had reduced expression of cytokines IL-4, IL-6, and IFN-γ compared with Chile-9717869 infected animals, suggesting potentially limited immune-mediated pathology. These results demonstrate that certain ANDV strains may not be lethal in the classical Syrian hamster model of infection, and further exploration into the differences between lethal and non-lethal strains provide important insights into molecular determinants of pathogenic hantavirus infection.Importance:Andes orthohantavirus (ANDV) is a New World hantavirus that is a major cause of hantavirus cardiopulmonary syndrome (HCPS, also referred to as hantavirus pulmonary syndrome) in South America, particularly in Chile and Argentina. ANDV is one of the few hantaviruses for which there is a reliable animal model, the Syrian hamster model, which recapitulates important aspects of human disease. Here we infected hamsters with a human isolate of ANDV, CHI-7913, to assess its pathogenicity compared with the classical lethal Chile-9717869 strain. CHI-7913 had 22 amino acid differences compared with Chile-9717869, did not cause lethal disease in hamsters, and showed reduced ability to replicate in vivo Our data indicate potentially important molecular signatures for pathogenesis of ANDV infection in hamsters and may lead to insights into what drives pathogenesis of certain hantaviruses in humans.
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160
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Yasuda SP, Shimizu K, Koma T, Hoa NT, Le MQ, Wei Z, Muthusinghe DS, Lokupathirage SMW, Hasebe F, Yamashiro T, Arikawa J, Yoshimatsu K. Immunological Responses to Seoul Orthohantavirus in Experimentally and Naturally Infected Brown Rats ( Rattus norvegicus). Viruses 2021; 13:v13040665. [PMID: 33921493 PMCID: PMC8070117 DOI: 10.3390/v13040665] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/07/2021] [Accepted: 04/07/2021] [Indexed: 12/27/2022] Open
Abstract
To clarify the mechanism of Seoul orthohantavirus (SEOV) persistence, we compared the humoral and cell-mediated immune responses to SEOV in experimentally and naturally infected brown rats. Rats that were experimentally infected by the intraperitoneal route showed transient immunoglobulin M (IgM) production, followed by an increased anti-SEOV immunoglobulin G (IgG) antibody response and maturation of IgG avidity. The level of SEOV-specific cytotoxic T lymphocytes (CTLs) peaked at 6 days after inoculation and the viral genome disappeared from serum. In contrast, naturally infected brown rats simultaneously had a high rate of SEOV-specific IgM and IgG antibodies (28/43). Most of the IgM-positive rats (24/27) had the SEOV genome in their lungs, suggesting that chronic SEOV infection was established in those rats. In female rats with IgG avidity maturation, the viral load in the lungs was decreased. On the other hand, there was no relationship between IgG avidity and viral load in the lungs in male rats. A CTL response was not detected in naturally infected rats. The difference between immune responses in the experimentally and naturally infected rats is associated with the establishment of chronic infection in natural hosts.
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Affiliation(s)
- Shumpei P. Yasuda
- Department of Microbiology and Immunology, Faculty of Medicine, Hokkaido University, Sapporo 060-8638, Japan; (S.P.Y.); (K.S.); (J.A.)
| | - Kenta Shimizu
- Department of Microbiology and Immunology, Faculty of Medicine, Hokkaido University, Sapporo 060-8638, Japan; (S.P.Y.); (K.S.); (J.A.)
- Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan;
| | - Takaaki Koma
- Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan;
| | - Nguyen Thuy Hoa
- National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam; (N.T.H.); (M.Q.L.)
| | - Mai Quynh Le
- National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam; (N.T.H.); (M.Q.L.)
| | - Zhuoxing Wei
- Graduate School of Infectious Diseases, Hokkaido University, Sapporo 060-0818, Japan; (Z.W.); (D.S.M.); (S.M.W.L.)
| | - Devinda S. Muthusinghe
- Graduate School of Infectious Diseases, Hokkaido University, Sapporo 060-0818, Japan; (Z.W.); (D.S.M.); (S.M.W.L.)
| | | | - Futoshi Hasebe
- Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan;
| | - Tetsu Yamashiro
- Department of Bacteriology, Graduate School of Medicine, University of the Ryukyus, Okinawa 903-0213, Japan;
| | - Jiro Arikawa
- Department of Microbiology and Immunology, Faculty of Medicine, Hokkaido University, Sapporo 060-8638, Japan; (S.P.Y.); (K.S.); (J.A.)
- Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan;
| | - Kumiko Yoshimatsu
- Department of Microbiology and Immunology, Faculty of Medicine, Hokkaido University, Sapporo 060-8638, Japan; (S.P.Y.); (K.S.); (J.A.)
- Graduate School of Infectious Diseases, Hokkaido University, Sapporo 060-0818, Japan; (Z.W.); (D.S.M.); (S.M.W.L.)
- Institute for Genetic Medicine, Hokkaido University, Kita-ku, Kita-15, Nishi-7, Sapporo 060-0815, Japan
- Correspondence: ; Tel.: +81-11-706-7547
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161
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Camp JV, Schmon E, Krause R, Sixl W, Schmid D, Aberle SW. Genetic Diversity of Puumala orthohantavirus in Rodents and Human Patients in Austria, 2012-2019. Viruses 2021; 13:v13040640. [PMID: 33918083 PMCID: PMC8069475 DOI: 10.3390/v13040640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/06/2021] [Accepted: 04/07/2021] [Indexed: 12/14/2022] Open
Abstract
Puumala orthohantavirus (PUUV) has a wide distribution throughout Europe. Distinctive temporal patterns of spillover into the human population are related to population dynamics of the reservoir host, the bank vole (Clethrionomys glareolus). As the rodent host is tied to specific habitats with small individual ranges, PUUV genetic diversity is also highly correlated with geographic distance. Using sequenced portions of viral S and M segments, we determined whether geographic clusters were supported. Human cases of PUUV infections are concentrated in southeastern Austria. We detected four distinct genotypes: two genotypes of the Alpe-Adria (ALAD) lineage typically associated with southeast Europe, and two sublineages of the Central Europe (CE) lineage. One cluster of CE genotypes represents a phylogenetically distinct sublineage compared to previously reported CE clades, and extends the boundary of the CE lineage further south than previously reported.
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Affiliation(s)
- Jeremy V. Camp
- Center for Virology, Medical University of Vienna, 1090 Vienna, Austria;
| | - Eva Schmon
- Institute of Hospital Hygiene and Microbiology, Styrian Hospital Corporation, 8010 Graz, Austria;
| | - Robert Krause
- Section of Infectious Diseases and Tropical Medicine, Department of Internal Medicine, Medical University of Graz, 8036 Graz, Austria;
| | - Wolfdieter Sixl
- Institute of Hygiene, University of Graz, 8010 Graz, Austria;
| | - Daniela Schmid
- Austrian Agency for Health and Food Safety (AGES), 1090 Vienna, Austria;
| | - Stephan W. Aberle
- Center for Virology, Medical University of Vienna, 1090 Vienna, Austria;
- Correspondence: ; Tel.: +43-1-40160-65555
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Madai M, Horváth G, Herczeg R, Somogyi B, Zana B, Földes F, Kemenesi G, Kurucz K, Papp H, Zeghbib S, Jakab F. Effectiveness Regarding Hantavirus Detection in Rodent Tissue Samples and Urine. Viruses 2021; 13:570. [PMID: 33805304 PMCID: PMC8066454 DOI: 10.3390/v13040570] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/13/2021] [Accepted: 03/23/2021] [Indexed: 12/18/2022] Open
Abstract
The natural hosts of Orthohantaviruses are rodents, soricomorphs and bats, and it is well known that they may cause serious or even fatal diseases among humans worldwide. The virus is persistent among animals and it is shed via urine, saliva and feces throughout the entirety of their lives. We aim to identify the effectiveness of hantavirus detection in rodent tissue samples and urine originating from naturally infected rodents. Initially, animals were trapped at five distinct locations throughout the Transdanubian region in Hungary. Lung, liver, kidney and urine samples were obtained from 163 deceased animals. All organs and urine were tested using nested reverse transcription polymerase chain reaction (nRT-PCR). Furthermore, sera were examined for IgG antibodies against Dobrava-Belgrade virus (DOBV) and Puumala virus (PUUV) by Western blot assay. IgG antibodies against hantaviruses and/or nucleic acid were detected in 25 (15.3%) cases. Among Apodemus, Myodes, and Microtus rodent species, DOBV, PUUV and Tula virus (TULV) were clearly identified. Amid the PCR-positive samples, the nucleic acid of the viruses was detected most effectively in the kidney (100%), while only 55% of screened lung tissues were positive. Interestingly, only three out of 20 rodent urine samples were positive when tested using nRT-PCR. Moreover, five rodents were seropositive without detectable virus nucleic acid in any of the tested organs.
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Affiliation(s)
- Mónika Madai
- National Laboratory of Virology, BSL-4 Laboratory, Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary; (B.S.); (B.Z.); (F.F.); (G.K.); (H.P.); (S.Z.)
- Institute of Biology, Faculty of Sciences, University of Pécs, H-7624 Pécs, Hungary; (G.H.); (K.K.)
| | - Győző Horváth
- Institute of Biology, Faculty of Sciences, University of Pécs, H-7624 Pécs, Hungary; (G.H.); (K.K.)
| | - Róbert Herczeg
- Bioinformatics Research Group, Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary;
| | - Balázs Somogyi
- National Laboratory of Virology, BSL-4 Laboratory, Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary; (B.S.); (B.Z.); (F.F.); (G.K.); (H.P.); (S.Z.)
- Institute of Biology, Faculty of Sciences, University of Pécs, H-7624 Pécs, Hungary; (G.H.); (K.K.)
| | - Brigitta Zana
- National Laboratory of Virology, BSL-4 Laboratory, Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary; (B.S.); (B.Z.); (F.F.); (G.K.); (H.P.); (S.Z.)
- Institute of Biology, Faculty of Sciences, University of Pécs, H-7624 Pécs, Hungary; (G.H.); (K.K.)
| | - Fanni Földes
- National Laboratory of Virology, BSL-4 Laboratory, Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary; (B.S.); (B.Z.); (F.F.); (G.K.); (H.P.); (S.Z.)
- Institute of Biology, Faculty of Sciences, University of Pécs, H-7624 Pécs, Hungary; (G.H.); (K.K.)
| | - Gábor Kemenesi
- National Laboratory of Virology, BSL-4 Laboratory, Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary; (B.S.); (B.Z.); (F.F.); (G.K.); (H.P.); (S.Z.)
- Institute of Biology, Faculty of Sciences, University of Pécs, H-7624 Pécs, Hungary; (G.H.); (K.K.)
| | - Kornélia Kurucz
- Institute of Biology, Faculty of Sciences, University of Pécs, H-7624 Pécs, Hungary; (G.H.); (K.K.)
| | - Henrietta Papp
- National Laboratory of Virology, BSL-4 Laboratory, Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary; (B.S.); (B.Z.); (F.F.); (G.K.); (H.P.); (S.Z.)
- Institute of Biology, Faculty of Sciences, University of Pécs, H-7624 Pécs, Hungary; (G.H.); (K.K.)
| | - Safia Zeghbib
- National Laboratory of Virology, BSL-4 Laboratory, Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary; (B.S.); (B.Z.); (F.F.); (G.K.); (H.P.); (S.Z.)
- Institute of Biology, Faculty of Sciences, University of Pécs, H-7624 Pécs, Hungary; (G.H.); (K.K.)
| | - Ferenc Jakab
- National Laboratory of Virology, BSL-4 Laboratory, Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary; (B.S.); (B.Z.); (F.F.); (G.K.); (H.P.); (S.Z.)
- Institute of Biology, Faculty of Sciences, University of Pécs, H-7624 Pécs, Hungary; (G.H.); (K.K.)
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163
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Salinas TP, Garrido JL, Salazar JR, Gonzalez P, Zambrano N, Fuentes-Villalobos F, Bravo F, Fica-Leon V, Salas-Burgos A, Calvo M, Alvarez R, Armien B, Barria MI. Cytokine Profiles and Antibody Response Associated to Choclo Orthohantavirus Infection. Front Immunol 2021; 12:603228. [PMID: 33815363 PMCID: PMC8017165 DOI: 10.3389/fimmu.2021.603228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 03/01/2021] [Indexed: 11/13/2022] Open
Abstract
Background New World Hantaviruses (NWHs) are the etiological agent underlying hantavirus cardiopulmonary syndrome (HCPS), a severe respiratory disease with high mortality rates in humans. In Panama, infections with Choclo Orthohantavirus (CHOV) cause a much milder illness characterized by higher seroprevalence and lower mortality rates. To date, the cytokine profiles and antibody responses associated with this milder form of HCPS have not been defined. Therefore, in this study, we examined immune serological profiles associated with CHOV infections. Methods For this retrospective study, sera from fifteen individuals with acute CHOV-induced HCPS, were analyzed alongside sera from fifteen convalescent phase individuals and thirty-three asymptomatic, CHOV-seropositive individuals. Cytokine profiles were analyzed by multiplex immunoassay. Antibody subclasses, binding, and neutralization against CHOV-glycoprotein (CHOV-GP) were evaluated by ELISA, and flow cytometry. Results High titers of IFNγ, IL-4, IL-8, and IL-10 serum cytokines were found in the acute individuals. Elevated IL-4 serum levels were found in convalescent and asymptomatic seropositive individuals. High titers of IgG1 subclass were observed across the three cohorts analyzed. Neutralizing antibody response against CHOV-GP was detectable in few acute individuals but was strong in both convalescent and asymptomatic seropositive individuals. Conclusion A Th1/Th2 cytokine signature is characteristic during acute mild HCPS caused by CHOV infection. High expression of Th2 and IL-8 cytokines are correlated with clinical parameters in acute mild HCPS. In addition, a strong IL-4 signature is associated with different cohorts, including asymptomatic individuals. Furthermore, asymptomatic individuals presented high titers of neutralizing antibodies.
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Affiliation(s)
- Tybbysay P Salinas
- Department of Microbiology, Biotechnology Center, Faculty of Biological Science, Universidad de Concepción, Concepción, Chile.,Department of Research in Emerging and Zoonotic Diseases, Gorgas Memorial Institute of Health Studies, Panama City, Panama
| | - Jose L Garrido
- Department of Microbiology, Biotechnology Center, Faculty of Biological Science, Universidad de Concepción, Concepción, Chile.,Ichor Biologics LLC, New York, NY, United States
| | - Jacqueline R Salazar
- Department of Research in Emerging and Zoonotic Diseases, Gorgas Memorial Institute of Health Studies, Panama City, Panama
| | - Publio Gonzalez
- Department of Research in Emerging and Zoonotic Diseases, Gorgas Memorial Institute of Health Studies, Panama City, Panama
| | - Nicole Zambrano
- Department of Microbiology, Biotechnology Center, Faculty of Biological Science, Universidad de Concepción, Concepción, Chile
| | - Francisco Fuentes-Villalobos
- Department of Microbiology, Biotechnology Center, Faculty of Biological Science, Universidad de Concepción, Concepción, Chile
| | - Felipe Bravo
- Department of Microbiology, Biotechnology Center, Faculty of Biological Science, Universidad de Concepción, Concepción, Chile.,Ichor Biologics LLC, New York, NY, United States
| | - Victor Fica-Leon
- Department of Pharmacology, Faculty of Biological Sciences, Universidad de Concepción, Concepción, Chile
| | - Alexis Salas-Burgos
- Department of Pharmacology, Faculty of Biological Sciences, Universidad de Concepción, Concepción, Chile
| | - Mario Calvo
- Institute of Medicine, Universidad Austral de Chile, Valdivia, Chile
| | | | - Blas Armien
- Department of Research in Emerging and Zoonotic Diseases, Gorgas Memorial Institute of Health Studies, Panama City, Panama.,Sistema Nacional de Investigación (SIN), SENACYT, Panama City, Panama
| | - Maria Ines Barria
- Department of Microbiology, Biotechnology Center, Faculty of Biological Science, Universidad de Concepción, Concepción, Chile
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164
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Vergote V, Laenen L, Mols R, Augustijns P, Van Ranst M, Maes P. Chloroquine, an Anti-Malaria Drug as Effective Prevention for Hantavirus Infections. Front Cell Infect Microbiol 2021; 11:580532. [PMID: 33791230 PMCID: PMC8006394 DOI: 10.3389/fcimb.2021.580532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 02/15/2021] [Indexed: 01/14/2023] Open
Abstract
We investigated whether chloroquine can prevent hantavirus infection and disease in vitro and in vivo, using the Hantaan virus newborn C57BL/6 mice model and the Syrian hamster model for Andes virus. In vitro antiviral experiments were performed using Vero E6 cells, and Old World and New World hantavirus species. Hantavirus RNA was detected using quantitative RT-PCR. For all hantavirus species tested, results indicate that the IC50 of chloroquine (mean 10.2 ± 1.43 μM) is significantly lower than the CC50 (mean 260 ± 2.52 μM) yielding an overall selectivity index of 25.5. We also investigated the potential of chloroquine to prevent death in newborn mice after Hantaan virus infection and its antiviral effect in the hantavirus Syrian hamster model. For this purpose, C57Bl/6 mother mice were treated subcutaneously with daily doses of chloroquine. Subsequently, 1-day-old suckling mice were inoculated intracerebrally with 5 x 102 Hantaan virus particles. In litters of untreated mothers, none of the pups survived challenge. The highest survival rate (72.7% of pups) was found when mother mice were administered a concentration of 10 mg/kg chloroquine. Survival rates declined in a dose-dependent manner, with 47.6% survival when treated with 5 mg/kg chloroquine, and 4.2% when treated with 1 mg/kg chloroquine. Assessing the antiviral therapeutic and prophylactic effect of chloroquine in the Syrian hamster model was done using two different administration routes (intraperitoneally and subcutaneously using an osmotic pump system). Evaluating the prophylactic effect, a delay in onset of disease was noted and for the osmotic pump, 60% survival was observed. Our results show that chloroquine can be highly effective against Hantaan virus infection in newborn mice and against Andes virus in Syrian hamsters.
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Affiliation(s)
- Valentijn Vergote
- Laboratory of Clinical Virology, Zoonotic Infectious Diseases Unit, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Lies Laenen
- Laboratory of Clinical Virology, Zoonotic Infectious Diseases Unit, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Raf Mols
- Department of Pharmaceutical and Pharmacological Sciences, Drug Delivery and Disposition, KU Leuven, Leuven, Belgium
| | - Patrick Augustijns
- Department of Pharmaceutical and Pharmacological Sciences, Drug Delivery and Disposition, KU Leuven, Leuven, Belgium
| | - Marc Van Ranst
- Laboratory of Clinical Virology, Zoonotic Infectious Diseases Unit, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Piet Maes
- Laboratory of Clinical Virology, Zoonotic Infectious Diseases Unit, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
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165
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Dowall SD, Graham VA, Aram M, Findlay-Wilson S, Salguero FJ, Emery K, Hewson R. Hantavirus infection in type I interferon receptor-deficient (A129) mice. J Gen Virol 2021; 101:1047-1055. [PMID: 32667279 PMCID: PMC7660455 DOI: 10.1099/jgv.0.001470] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Type I interferon receptor knockout mice (strain A129) were assessed as a disease model of hantavirus infection. A range of infection routes (intramuscular, intraperitoneal and intranasal) were assessed using minimally passaged Seoul virus (strain Humber). Dissemination of virus to the spleen, kidney and lung was observed at 5 days after intramuscular and intraperitoneal challenge, which was resolved by day 14. In contrast, intranasal challenge of A129 mice demonstrated virus tropism to the lung, which was maintained to day 14 post-challenge. These data support the use of the A129 mouse model for future infection studies and the in vivo evaluation of interventions.
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Affiliation(s)
- Stuart D Dowall
- National Infection Service, Public Health England, Porton Down, Salisbury, Wiltshire SP4 0JG, UK
| | - Victoria A Graham
- National Infection Service, Public Health England, Porton Down, Salisbury, Wiltshire SP4 0JG, UK
| | - Marilyn Aram
- National Infection Service, Public Health England, Porton Down, Salisbury, Wiltshire SP4 0JG, UK
| | - Stephen Findlay-Wilson
- National Infection Service, Public Health England, Porton Down, Salisbury, Wiltshire SP4 0JG, UK
| | - Francisco J Salguero
- National Infection Service, Public Health England, Porton Down, Salisbury, Wiltshire SP4 0JG, UK
| | - Kirsty Emery
- National Infection Service, Public Health England, Porton Down, Salisbury, Wiltshire SP4 0JG, UK
| | - Roger Hewson
- National Infection Service, Public Health England, Porton Down, Salisbury, Wiltshire SP4 0JG, UK
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166
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Cuperus T, de Vries A, Hoornweg TE, Fonville M, Jaarsma RI, Opsteegh M, Maas M. Seoul Virus in Pet and Feeder Rats in The Netherlands. Viruses 2021; 13:443. [PMID: 33801789 PMCID: PMC8002128 DOI: 10.3390/v13030443] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/05/2021] [Accepted: 03/05/2021] [Indexed: 12/25/2022] Open
Abstract
Seoul virus (SEOV) is a zoonotic orthohantavirus carried by rats. In humans, SEOV can cause hemorrhagic fever with renal syndrome. Recent human SEOV cases described in the USA, United Kingdom, France and the Netherlands were associated with contact with pet or feeder rats. The prevalence of SEOV in these types of rats is unknown. We collected 175 pet and feeder rats (Rattus norvegicus) from private owners, ratteries and commercial breeders/traders in the Netherlands. Lung tissue of the rats was tested using a SEOV real-time RT-qPCR and heart fluid was tested for the presence of antibodies against SEOV. In all three investigated groups, RT-qPCR-positive rats were found: in 1/29 rats from private owners (3.6%), 2/56 rats from ratteries (3.4%) and 11/90 rats from commercial breeders (12.2%). The seroprevalence was largely similar to the prevalence calculated from RT-qPCR-positive rats. The SEOV sequences found were highly similar to sequences previously found in domesticated rats in Europe. In conclusion, SEOV is spread throughout different populations of domesticated rats.
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Affiliation(s)
| | | | | | | | | | | | - Miriam Maas
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Postbus 1, 3720 BA Bilthoven, The Netherlands; (T.C.); (A.d.V.); (T.E.H.); (M.F.); (R.I.J.); (M.O.)
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167
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Monocyte subset redistribution from blood to kidneys in patients with Puumala virus caused hemorrhagic fever with renal syndrome. PLoS Pathog 2021; 17:e1009400. [PMID: 33690725 PMCID: PMC7984619 DOI: 10.1371/journal.ppat.1009400] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 03/22/2021] [Accepted: 02/17/2021] [Indexed: 12/18/2022] Open
Abstract
Innate immune cells like monocytes patrol the vasculature and mucosal surfaces, recognize pathogens, rapidly redistribute to affected tissues and cause inflammation by secretion of cytokines. We previously showed that monocytes are reduced in blood but accumulate in the airways of patients with Puumala virus (PUUV) caused hemorrhagic fever with renal syndrome (HFRS). However, the dynamics of monocyte infiltration to the kidneys during HFRS, and its impact on disease severity are currently unknown. Here, we examined longitudinal peripheral blood samples and renal biopsies from HFRS patients and performed in vitro experiments to investigate the fate of monocytes during HFRS. During the early stages of HFRS, circulating CD14-CD16+ nonclassical monocytes (NCMs) that patrol the vasculature were reduced in most patients. Instead, CD14+CD16- classical (CMs) and CD14+CD16+ intermediate monocytes (IMs) were increased in blood, in particular in HFRS patients with more severe disease. Blood monocytes from patients with acute HFRS expressed higher levels of HLA-DR, the endothelial adhesion marker CD62L and the chemokine receptors CCR7 and CCR2, as compared to convalescence, suggesting monocyte activation and migration to peripheral tissues during acute HFRS. Supporting this hypothesis, increased numbers of HLA-DR+, CD14+, CD16+ and CD68+ cells were observed in the renal tissues of acute HFRS patients compared to controls. In vitro, blood CD16+ monocytes upregulated CD62L after direct exposure to PUUV whereas CD16- monocytes upregulated CCR7 after contact with PUUV-infected endothelial cells, suggesting differential mechanisms of activation and response between monocyte subsets. Together, our findings suggest that NCMs are reduced in blood, potentially via CD62L-mediated attachment to endothelial cells and monocytes are recruited to the kidneys during HFRS. Monocyte mobilization, activation and functional impairment together may influence the severity of disease in acute PUUV-HFRS.
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168
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Knust B, Brown S, de St Maurice A, Whitmer S, Koske SE, Ervin E, Patel K, Graziano J, Morales-Betoulle ME, House J, Cannon D, Kerins J, Holzbauer S, Austin C, Gibbons-Burgener S, Colton L, Dunn J, Zufan S, Choi MJ, Davis WR, Chiang CF, Manning CR, Roesch L, Shoemaker T, Purpura L, McQuiston J, Peterson D, Radcliffe R, Garvey A, Christel E, Morgan L, Scheftel J, Kazmierczak J, Klena JD, Nichol ST, Rollin PE. Seoul Virus Infection and Spread in United States Home-Based Ratteries: Rat and Human Testing Results From a Multistate Outbreak Investigation. J Infect Dis 2021; 222:1311-1319. [PMID: 32484879 DOI: 10.1093/infdis/jiaa307] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 05/31/2020] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND During 2017, a multistate outbreak investigation occurred after the confirmation of Seoul virus (SEOV) infections in people and pet rats. A total of 147 humans and 897 rats were tested. METHODS In addition to immunoglobulin (Ig)G and IgM serology and traditional reverse-transcription polymerase chain reaction (RT-PCR), novel quantitative RT-PCR primers/probe were developed, and whole genome sequencing was performed. RESULTS Seventeen people had SEOV IgM, indicating recent infection; 7 reported symptoms and 3 were hospitalized. All patients recovered. Thirty-one facilities in 11 US states had SEOV infection, and among those with ≥10 rats tested, rat IgG prevalence ranged 2%-70% and SEOV RT-PCR positivity ranged 0%-70%. Human laboratory-confirmed cases were significantly associated with rat IgG positivity and RT-PCR positivity (P = .03 and P = .006, respectively). Genomic sequencing identified >99.5% homology between SEOV sequences in this outbreak, and these were >99% identical to SEOV associated with previous pet rat infections in England, the Netherlands, and France. Frequent trade of rats between home-based ratteries contributed to transmission of SEOV between facilities. CONCLUSIONS Pet rat owners, breeders, and the healthcare and public health community should be aware and take steps to prevent SEOV transmission in pet rats and to humans. Biosecurity measures and diagnostic testing can prevent further infections.
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Affiliation(s)
- Barbara Knust
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Shelley Brown
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | | | - Shannon Whitmer
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Sarah E Koske
- Wisconsin Department of Health Services, Madison, Wisconsin, USA
| | - Elizabeth Ervin
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Ketan Patel
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - James Graziano
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | | | - Jennifer House
- Colorado Department of Public Health and Environment, Denver, Colorado, USA
| | - Deborah Cannon
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Janna Kerins
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA.,Chicago Department of Public Health, Chicago, Illinois, USA
| | | | - Connie Austin
- Illinois Department of Public Health, Springfield, Illinois, USA
| | | | - Leah Colton
- Colorado Department of Public Health and Environment, Denver, Colorado, USA
| | - John Dunn
- Tennessee Department of Health, Nashville, Tennessee, USA
| | - Sara Zufan
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Mary Joung Choi
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - William R Davis
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Cheng-Feng Chiang
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Craig R Manning
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Linda Roesch
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Trevor Shoemaker
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Lawrence Purpura
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Jennifer McQuiston
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | | | - Rachel Radcliffe
- South Carolina Department of Health and Environmental Control, Columbia, South Carolina, USA
| | - Ann Garvey
- South Carolina Department of Health and Environmental Control, Columbia, South Carolina, USA
| | | | - Laura Morgan
- Manitowoc County Health Department, Manitowoc, Wisconsin, USA
| | - Joni Scheftel
- Minnesota Department of Health, St. Paul, Minnesota, USA
| | | | - John D Klena
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Stuart T Nichol
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Pierre E Rollin
- United States Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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169
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Nandi A, Allen LJS. Probability of a zoonotic spillover with seasonal variation. Infect Dis Model 2021; 6:514-531. [PMID: 33688600 PMCID: PMC7931696 DOI: 10.1016/j.idm.2021.01.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/19/2021] [Accepted: 01/19/2021] [Indexed: 12/28/2022] Open
Abstract
Zoonotic infectious diseases are spread from animals to humans. It is estimated that over 60% of human infectious diseases are zoonotic and 75% of them are emerging zoonoses. The majority of emerging zoonotic infectious diseases are caused by viruses including avian influenza, rabies, Ebola, coronaviruses and hantaviruses. Spillover of infection from animals to humans depends on a complex transmission pathway, which is influenced by epidemiological and environmental processes. In this investigation, the focus is on direct transmission between animals and humans and the effects of seasonal variations on the transmission and recovery rates. Fluctuations in transmission and recovery, besides being influenced by physiological processes and behaviors of pathogen and host, are driven by seasonal variations in temperature, humidity or rainfall. A new time-nonhomogeneous stochastic process is formulated for infectious disease spread from animals to humans when transmission and recovery rates are time-periodic. A branching process approximation is applied near the disease-free state to predict the probability of the first spillover event from animals to humans. This probability is a periodic function of the time when infection is introduced into the animal population. It is shown that the highest risk of a spillover depends on a combination of animal to human transmission, animal to animal transmission and animal recovery. The results are applied to a stochastic model for avian influenza with spillover from domestic poultry to humans.
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Affiliation(s)
- Aadrita Nandi
- Department of Mathematics and Statistics, Texas Tech University, Lubbock, TX, 79409-1042, USA.,Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, 48108-5260, USA
| | - Linda J S Allen
- Department of Mathematics and Statistics, Texas Tech University, Lubbock, TX, 79409-1042, USA
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170
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Pathogen Dose in Animal Models of Hemorrhagic Fever Virus Infections and the Potential Impact on Studies of the Immune Response. Pathogens 2021; 10:pathogens10030275. [PMID: 33804381 PMCID: PMC7999429 DOI: 10.3390/pathogens10030275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/22/2021] [Accepted: 02/25/2021] [Indexed: 12/24/2022] Open
Abstract
Viral hemorrhagic fever viruses come from a wide range of virus families and are a significant cause of morbidity and mortality worldwide each year. Animal models of infection with a number of these viruses have contributed to our knowledge of their pathogenesis and have been crucial for the development of therapeutics and vaccines that have been approved for human use. Most of these models use artificially high doses of virus, ensuring lethality in pre-clinical drug development studies. However, this can have a significant effect on the immune response generated. Here I discuss how the dose of antigen or pathogen is a critical determinant of immune responses and suggest that the current study of viruses in animal models should take this into account when developing and studying animal models of disease. This can have implications for determination of immune correlates of protection against disease as well as informing relevant vaccination and therapeutic strategies.
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171
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Meganck RM, Baric RS. Developing therapeutic approaches for twenty-first-century emerging infectious viral diseases. Nat Med 2021; 27:401-410. [PMID: 33723456 DOI: 10.1038/s41591-021-01282-0] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 02/08/2021] [Indexed: 01/31/2023]
Abstract
The twenty-first century has already recorded more than ten major epidemic or pandemic virus emergence events, including the ongoing and devastating coronavirus disease 2019 (COVID-19) pandemic. As viral disease emergence is expected to accelerate, these data dictate a need for proactive approaches to develop broadly active family-specific and cross-family therapeutics for use in future disease outbreaks. Emphasis should focus not only on the development of broad-spectrum small-molecule and antibody direct-acting antivirals, but also on host-factor therapeutics, including repurposing previously approved or in-pipeline drugs. Another new class of therapeutics with great antiviral therapeutic potential is RNA-based therapeutics. Rather than only focusing on known risks, dedicated efforts must be made toward pre-emptive research focused on outbreak-prone virus families, ultimately offering a strategy to shorten the gap between outbreak and response. Emphasis should also focus on orally available drugs for outpatient use, if possible, and on identifying combination therapies that combat viral and immune-mediated pathologies, extend the effectiveness of therapeutic windows and reduce drug resistance. While such an undertaking will require new vision, dedicated funding and private, federal and academic partnerships, this approach offers hope that global populations need never experience future pandemics such as COVID-19.
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Affiliation(s)
- Rita M Meganck
- Department of Epidemiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Ralph S Baric
- Department of Epidemiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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172
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İnce N, Öne K, Sav T, Sungur MA, Menemenlioğlu D. An evaluation of suspected cases of Hantavirus infection admitted to a tertiary care university hospital in Düzce, Turkey, between 2012 and 2018. Turk J Med Sci 2021; 51:288-296. [PMID: 33021756 PMCID: PMC7991866 DOI: 10.3906/sag-1912-123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 10/06/2020] [Indexed: 11/06/2022] Open
Abstract
Background/aim Hantavirus is a rodent borne zoonosis caused by the members of the virus family Bunyaviridae, genus
Hantavirus
. In this study, we aimed to determine the role of peripheral blood leukocyte ratio in differential diagnosis of Hantavirus disease. Materials and methods The medical records of patients at the Düzce University Medical Faculty were examined retrospectively. A total of 20 patients diagnosed with hantavirus infection confirmed by serologic tests were included in the study (Group 1). The other group consisted of 30 patients suspected of hantavirus infection but found negative (Group 2). Demographic, clinical and laboratory characteristics, neutrophil/lymphocyte ratio (NLR), platelet/lymphocyte ratio (PLR), and lymphocyte/monocyte (LMR) ratios of both groups were compared. Results As a result of the istatistics analysis, no difference was found between the groups’ age, sex, and clinical complaints except lethargy-weakness (P = 0.004) and diarrhea (P < 0.001). Hemogram analysis showed a significant difference between the groups in terms of leukocyte, hemoglobin, hematocrit, platelet, mean platelet volume (P < 0.05) and PLR (P = 0.001) and LMR (P = 0.003) values from peripheral blood leukocyte ratios. Conclusion In conclusion, NLR, PLR, and LMR ratios may be useful for clinicians in differential diagnosis of Hantavirus in patients presenting with similar symptoms of Hantavirus disease.
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Affiliation(s)
- Nevin İnce
- Department of Infectious Diseases and Clinical Microbiology, Düzce University Faculty of Medicine, Düzce, Turkey
| | - Kürşad Öne
- Department of Nephrology, Internal Diseases, Düzce University Faculty of Medicine, Düzce, Turkey
| | - Tansu Sav
- Department of Nephrology, Internal Diseases, Düzce University Faculty of Medicine, Düzce, Turkey
| | - Mehmet Ali Sungur
- Department of Biostatistics, Düzce University Faculty of Medicine, Düzce, Turkey
| | - Dilek Menemenlioğlu
- Department of Microbiology Reference Laboratories, National Arboviruses and Viral Zoonoses Unit Public Health Institution of Turkey, Ankara, Turkey
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173
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Abstract
European orthohantaviruses (Puumala orthohantavirus (PUUV); Dobrava-Belgrade orthohantavirus (DOBV), genotype Kurkino; Tula orthohantavirus (TULV)), and Leptospira spp. are small mammal-associated zoonotic pathogens that cause diseases with potentially similar symptoms in humans. We investigated the frequency of Leptospira spp. and hantavirus single and double infections in small mammals from 22 sites in Thuringia, central Germany, during 2017. TULV infections were detected at 18 of 22 sites (mean prevalence 13.8%, 93/674). PUUV infections were detected at four of 22 sites (mean prevalence 1.5%, 7/471), and respective PUUV sequences formed a novel phylogenetic clade, but DOBV infections were not detected at all. Leptospira infections were detected at 21 of 22 sites with the highest overall prevalence in field voles (Microtus agrestis) with 54.5% (6/11) and common voles (Microtus arvalis) with 30.3% (205/676). Leptospira–hantavirus coinfections were found in 6.6% (44/671) of common voles but only in two of 395 bank voles. TULV and Leptospira coinfection probability in common voles was driven by individual (age) and population-level factors. Coinfections seemed to be particularly associated with sites where Leptospira spp. prevalence exceeded 35%. Future investigations should evaluate public health consequences of this strong spatial clustering of coinfections.
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174
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Lo SH, Chen PT, Yu WJ, Hsieh KS, Chen TC. Case Report: Spinal Subarachnoid Hemorrhage: A Rare Complication of Hemorrhagic Fever with Renal Syndrome. Am J Trop Med Hyg 2021; 104:1432-1434. [PMID: 33591937 DOI: 10.4269/ajtmh.20-0823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 01/04/2021] [Indexed: 11/07/2022] Open
Abstract
Hemorrhagic fever with renal syndrome (HFRS), caused by hantavirus, is occasionally seen in tropical areas. The virus is carried by specific rodent host species. Hemorrhagic fever with renal syndrome is characterized by renal failure and hemorrhagic manifestations, and its complications may be severe, including massive bleeding, multi-organ dysfunction, and possibly death. In this patient case, a 46-year-old woman diagnosed with HFRS initially presented with fever, impaired function, and thrombocytopenia. Four days after symptom onset, the patient complained of abrupt right lower abdominal pain and numbness. Magnetic resonance imaging revealed a spinal subarachnoid hemorrhage (SAH) beyond the T7 to S2 vertebrae. No cases of spinal SAH in HFRS have been reported until now. This case demonstrates that when a patient's symptoms are atypical, bleeding-related complications must be considered.
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Affiliation(s)
- Shih-Hao Lo
- 1Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Pei-Ting Chen
- 2Department of Post Baccalaureate Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wan-Jin Yu
- 3Department of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ke-Syuan Hsieh
- 3Department of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tun-Chieh Chen
- 2Department of Post Baccalaureate Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,3Department of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,4Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
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175
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Yashina LN, Hay J, Smetannikova NA, Kushnareva TV, Iunikhina OV, Kompanets GG. Hemorrhagic Fever With Renal Syndrome in Vladivostok City, Russia. Front Public Health 2021; 9:620279. [PMID: 33614585 PMCID: PMC7892620 DOI: 10.3389/fpubh.2021.620279] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 01/11/2021] [Indexed: 11/13/2022] Open
Abstract
Hemorrhagic fever with renal syndrome (HFRS) is a public health problem in Vladivostok city, Russia. From 1997 to 2019, a study of hantaviruses in Norway rats (Rattus norvegicus), a natural reservoir of Seoul virus (SEOV), and in HFRS patients was conducted. We demonstrated the presence of SEOV in the local population of Norway rats and detected SEOV in 10, Amur virus (AMRV) in 4 and Hantaan virus (HTNV) in 1 out of 15 HFRS patients. Genetic analysis based on partial S, M and L segment sequences revealed that the Russian SEOV strains were related most closely to strains from Cambodia and Vietnam. We postulate that the SEOV strains found in the port city of Vladivostok have been spread from South-East Asia as a result of distribution of rats during standard shipping trade activities. Moreover, we suggest that city residents may have acquired AMRV and HTNV infection during visits to rural areas.
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Affiliation(s)
- Liudmila N Yashina
- Department of Genomic Research, State Research Center of Virology and Biotechnology "Vector", Koltsovo, Russia
| | - John Hay
- Department of Microbiology and Immunology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, United States
| | - Natalia A Smetannikova
- Department of Genomic Research, State Research Center of Virology and Biotechnology "Vector", Koltsovo, Russia
| | - Tatiana V Kushnareva
- Department of Microbiology and Virology, Pacific State Medical University, Vladivostok, Russia
| | - Olga V Iunikhina
- Laboratory of Experimental Virology, Somov Institute of Epidemiology and Microbiology, Vladivostok, Russia
| | - Galina G Kompanets
- Laboratory of Experimental Virology, Somov Institute of Epidemiology and Microbiology, Vladivostok, Russia
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176
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Boyle SA, de la Sancha NU, Pérez P, Kabelik D. Small mammal glucocorticoid concentrations vary with forest fragment size, trap type, and mammal taxa in the Interior Atlantic Forest. Sci Rep 2021; 11:2111. [PMID: 33542277 PMCID: PMC7862606 DOI: 10.1038/s41598-021-81073-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 12/29/2020] [Indexed: 12/14/2022] Open
Abstract
Species that live in degraded habitats often show signs of physiological stress. Glucocorticoid hormones (e.g., corticosterone and cortisol) are often assessed as a proxy of the extent of physiological stress an animal has experienced. Our goal was to quantify glucocorticoids in free-ranging small mammals in fragments of Interior Atlantic Forest. We extracted glucocorticoids from fur samples of 106 small mammals (rodent genera Akodon and Oligoryzomys, and marsupial genera Gracilinanus and Marmosa) from six forest fragments (2–1200 ha) in the Reserva Natural Tapytá, Caazapá Department, Paraguay. To our knowledge, this is the first publication of corticosterone and cortisol levels for three of the four sampled genera (Akodon, Oligoryzomys, and Marmosa) in this forest system. We discovered three notable results. First, as predicted, glucocorticoid levels were higher in individuals living withing small forest fragments. Second, animals captured live using restraint trapping methods (Sherman traps) had higher glucocorticoid levels than those animals captured using kill traps (Victor traps), suggesting that hair glucocorticoid measures can reflect acute stress levels in addition to long-term glucocorticoid incorporation. These acute levels are likely due to urinary steroids diffusing into the hair shaft. This finding raises a concern about the use of certain trapping techniques in association with fur hormone analysis. Finally, as expected, we also detected genus-specific differences in glucocorticoid levels, as well as cortisol/corticosterone ratios.
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Affiliation(s)
- Sarah A Boyle
- Department of Biology and Program in Environmental Studies and Sciences, Rhodes College, Memphis, TN, USA.
| | - Noé U de la Sancha
- Department of Biological Sciences, Chicago State University, Chicago, IL, USA.,The Field Museum, Integrative Research Center, Chicago, IL, USA
| | - Pastor Pérez
- Facultad Politécnica, Universidad Nacional de Asunción, Asunción, Paraguay
| | - David Kabelik
- Department of Biology and Program in Neuroscience, Rhodes College, Memphis, TN, USA
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177
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Wang Q, Yue M, Yao P, Zhu C, Ai L, Hu D, Zhang B, Yang Z, Yang X, Luo F, Wang C, Hou W, Tan W. Epidemic Trend and Molecular Evolution of HV Family in the Main Hantavirus Epidemic Areas From 2004 to 2016, in P.R. China. Front Cell Infect Microbiol 2021; 10:584814. [PMID: 33614521 PMCID: PMC7886990 DOI: 10.3389/fcimb.2020.584814] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 12/22/2020] [Indexed: 01/29/2023] Open
Abstract
Hemorrhagic fever with renal syndrome (HFRS) is caused by hantavirus (HV) infection, and is prevalent across Europe and Asia (mainly China). The genetic variation and wide host range of the HV family may lead to vaccine failure. In this study, we analyzed the gene sequences of HV isolated from different regions of China in order to trace the molecular evolution of HV and the epidemiological trends of HFRS. A total of 16,6975 HFRS cases and 1,689 HFRS-related deaths were reported from 2004 to 2016, with the average annual incidence rate of 0.9674 per 100,000, 0.0098 per 100,000 mortality rate, and case fatality rate 0.99%. The highest number of cases were detected in 2004 (25,041), and after decreasing to the lowest numbers (8,745) in 2009, showed an incline from 2010. The incidence of HFRS is the highest in spring and winter, and three times as many men are affected as women. In addition, farmers account for the largest proportion of all cases. The main hosts of HV are Rattus norvegicus and Apodemus agrarius, and the SEOV strain is mainly found in R. norvegicus and Niviventer confucianus. Phylogenetic analysis showed that at least 10 HTNV subtypes and 6 SEOV subtypes are endemic to China. We found that the clustering pattern of M genome segments was different from that of the S segments, indicating the possibility of gene recombination across HV strains. The recent increase in the incidence of HFRS may be related to climatic factors, such as temperature, relative humidity and hours of sunshine, as well as biological factors like rodent density, virus load in rodents and genetic variation. The scope of vaccine application should be continuously expanded, and surveillance measures and prevention and control strategies should be improved to reduce HFRS infection in China.
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Affiliation(s)
- Qiuwei Wang
- Department of Infectious Disease Prevention and Control, Eastern Theater Command Centers for Disease Control and Prevention, Nanjing, China
| | - Ming Yue
- Department of Infectious Diseases, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Pingping Yao
- Department of Microbiological Test, Zhejiang Provincial Center For Disease Control and Prevention, Hangzhou, China
| | - Changqiang Zhu
- Department of Infectious Disease Prevention and Control, Eastern Theater Command Centers for Disease Control and Prevention, Nanjing, China
| | - Lele Ai
- Department of Infectious Disease Prevention and Control, Eastern Theater Command Centers for Disease Control and Prevention, Nanjing, China
| | - Dan Hu
- Department of Infectious Disease Prevention and Control, Eastern Theater Command Centers for Disease Control and Prevention, Nanjing, China
| | - Bin Zhang
- Department of Infectious Disease Prevention and Control, Eastern Theater Command Centers for Disease Control and Prevention, Nanjing, China
| | - Zhangnv Yang
- Department of Microbiological Test, Zhejiang Provincial Center For Disease Control and Prevention, Hangzhou, China
| | - Xiaohong Yang
- Department of Infectious Disease Prevention and Control, Eastern Theater Command Centers for Disease Control and Prevention, Nanjing, China
| | - Fan Luo
- State Key Laboratory of Virology/Institute of Medical Virology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Chunhui Wang
- Department of Infectious Disease Prevention and Control, Eastern Theater Command Centers for Disease Control and Prevention, Nanjing, China
| | - Wei Hou
- State Key Laboratory of Virology/Institute of Medical Virology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Weilong Tan
- Department of Infectious Disease Prevention and Control, Eastern Theater Command Centers for Disease Control and Prevention, Nanjing, China
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178
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Wang Q, Yue M, Yao P, Zhu C, Ai L, Hu D, Zhang B, Yang Z, Yang X, Luo F, Wang C, Hou W, Tan W. Epidemic Trend and Molecular Evolution of HV Family in the Main Hantavirus Epidemic Areas From 2004 to 2016, in P.R. China. Front Cell Infect Microbiol 2021; 10. [DOI: https:/doi.org/10.3389/fcimb.2020.584814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023] Open
Abstract
Hemorrhagic fever with renal syndrome (HFRS) is caused by hantavirus (HV) infection, and is prevalent across Europe and Asia (mainly China). The genetic variation and wide host range of the HV family may lead to vaccine failure. In this study, we analyzed the gene sequences of HV isolated from different regions of China in order to trace the molecular evolution of HV and the epidemiological trends of HFRS. A total of 16,6975 HFRS cases and 1,689 HFRS-related deaths were reported from 2004 to 2016, with the average annual incidence rate of 0.9674 per 100,000, 0.0098 per 100,000 mortality rate, and case fatality rate 0.99%. The highest number of cases were detected in 2004 (25,041), and after decreasing to the lowest numbers (8,745) in 2009, showed an incline from 2010. The incidence of HFRS is the highest in spring and winter, and three times as many men are affected as women. In addition, farmers account for the largest proportion of all cases. The main hosts of HV are Rattus norvegicus and Apodemus agrarius, and the SEOV strain is mainly found in R. norvegicus and Niviventer confucianus. Phylogenetic analysis showed that at least 10 HTNV subtypes and 6 SEOV subtypes are endemic to China. We found that the clustering pattern of M genome segments was different from that of the S segments, indicating the possibility of gene recombination across HV strains. The recent increase in the incidence of HFRS may be related to climatic factors, such as temperature, relative humidity and hours of sunshine, as well as biological factors like rodent density, virus load in rodents and genetic variation. The scope of vaccine application should be continuously expanded, and surveillance measures and prevention and control strategies should be improved to reduce HFRS infection in China.
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179
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Prist PR, Prado A, Tambosi LR, Umetsu F, de Arruda Bueno A, Pardini R, Metzger JP. Moving to healthier landscapes: Forest restoration decreases the abundance of Hantavirus reservoir rodents in tropical forests. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 752:141967. [PMID: 32892056 DOI: 10.1016/j.scitotenv.2020.141967] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 08/06/2020] [Accepted: 08/23/2020] [Indexed: 06/11/2023]
Abstract
Hantavirus Cardiopulmonary Syndrome (HCPS) is a disease with high human lethality rates, whose transmission risk is directly related to the abundance of reservoir rodents. In the Brazilian Atlantic forest, the main reservoirs species, Oligoryzomys nigripes and Necromys lasiurus, are thought to increase in abundance with deforestation. Therefore, forest restoration may contribute to decrease HCPS transmission risk, a topic still unexplored, especially in tropical regions. Aiming at filling this research gap, we quantified the potential of forest restoration, as required by the current environmental legislation, to reduce the abundance of Hantavirus reservoir rodents in the Brazilian Atlantic Forest. Using a dataset on small mammal communities sampled at 104 sites, we modeled how the abundance of these two rodent species change with the percentage of forest cover and forest edge density. From the best model, we extrapolated rodent abundance to the entire Atlantic Forest, considering two scenarios: current and restored forest cover. Comparing the estimated abundance between these two scenarios, we show that forest restoration can reduce the abundance of O. nigripes up to 89.29% in 43.43% of Atlantic forest territory. For N. lasiurus, abundance decreased up to 46% in 44% of the Atlantic forest. To our knowledge, this is the first study linking forest restoration and zoonotic diseases. Our results indicate that forest restoration would decrease the chance of HCPS transmission in ~45% of the Atlantic forest, making the landscape healthier to ~2,8 million people living within this area. This positive effect of restoration on disease regulation should be considered as an additional argument to encourage and promote forest restoration in tropical areas around the world.
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Affiliation(s)
- Paula Ribeiro Prist
- Department of Ecology, Institute of Bioscience, University of São Paulo, Rua do Matão, Travessa 14, 101, São Paulo, SP 05508-090, Brazil.
| | - Amanda Prado
- Department of Ecology, Institute of Bioscience, University of São Paulo, Rua do Matão, Travessa 14, 101, São Paulo, SP 05508-090, Brazil
| | - Leandro Reverberi Tambosi
- Department of Ecology, Institute of Bioscience, University of São Paulo, Rua do Matão, Travessa 14, 101, São Paulo, SP 05508-090, Brazil; Department of Environmental and Urban Engineering, Federal University of ABC, Avenida dos Estados, 5001, Bairro Santa Terezinha, Santo André, SP 09210-580, Brazil
| | - Fabiana Umetsu
- Farroupilha Federal Institute of Education, Science and Technology, Rodovia RS-377 s/n, Campus Alegrete, Alegrete, RS 97555-000, Brazil
| | - Adriana de Arruda Bueno
- Management Plan Center, São Paulo State Forest Foundation, Av. Professor Frederico Hermann Júnior, 325 - Alto de Pinheiros, São Paulo, SP 05459-010, Brazil
| | - Renata Pardini
- Department of Zoology, Institute of Bioscience, University of São Paulo, Rua do Matão, Travessa 14, 101, São Paulo, SP 05508-090, Brazil
| | - Jean Paul Metzger
- Department of Ecology, Institute of Bioscience, University of São Paulo, Rua do Matão, Travessa 14, 101, São Paulo, SP 05508-090, Brazil
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180
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Camp JV, Spruill-Harrell B, Owen RD, Solà-Riera C, Williams EP, Eastwood G, Sawyer AM, Jonsson CB. Mixed Effects of Habitat Degradation and Resources on Hantaviruses in Sympatric Wild Rodent Reservoirs within a Neotropical Forest. Viruses 2021; 13:85. [PMID: 33435494 PMCID: PMC7827808 DOI: 10.3390/v13010085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 01/06/2021] [Accepted: 01/06/2021] [Indexed: 12/23/2022] Open
Abstract
Understanding the ecology of rodent-borne hantaviruses is critical to assessing the risk of spillover to humans. Longitudinal surveys have suggested that hantaviral prevalence in a given host population is tightly linked to rodent ecology and correlates with changes in the species composition of a rodent community over time and/or habitat composition. We tested two hypotheses to identify whether resource addition and/or habitat composition may affect hantavirus prevalence among two sympatric reservoir hosts in a neotropical forest: (i) increased food resources will alter the rodent community and thus hantaviral prevalence; and (ii) host abundance and viral seroprevalence will be associated with habitat composition. We established a baseline of rodent-virus prevalence in three grid pairs of distinct habitat compositions and subjected one grid of each pair to resource augmentation. Increased rodent species diversity was observed on grids where food was added versus untreated control grids during the first post-treatment sampling session. Resource augmentation changed species community composition, yet it did not affect the prevalence of hantavirus in the host population over time, nor was there evidence of a dilution effect. Secondly, we show that the prevalence of the virus in the respective reservoir hosts was associated with habitat composition at two spatial levels, independent of resource addition, supporting previous findings that habitat composition is a primary driver of the prevalence of hantaviruses in the neotropics.
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Affiliation(s)
- Jeremy V. Camp
- Institute of Virology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria;
| | - Briana Spruill-Harrell
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (B.S.-H.); (E.P.W.)
| | - Robert D. Owen
- Centro para el Desarrollo de la Investigación Científica, Asunción C.P. 1371, Paraguay;
- Department of Biological Sciences, Texas Tech University, Lubbock, TX 79409, USA
| | - Carles Solà-Riera
- Center for Infectious Medicine, Department of Medicine Huddinge, Karolinska Institutet, Karolinska University Hospital, 141 86 Stockholm, Sweden;
| | - Evan P. Williams
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (B.S.-H.); (E.P.W.)
| | - Gillian Eastwood
- Department of Microbiology, University of Tennessee-Knoxville, Knoxville, TN 37996, USA; (G.E.); (A.M.S.)
| | - Aubrey M. Sawyer
- Department of Microbiology, University of Tennessee-Knoxville, Knoxville, TN 37996, USA; (G.E.); (A.M.S.)
| | - Colleen B. Jonsson
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (B.S.-H.); (E.P.W.)
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181
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Kim WK, Cho S, Lee SH, No JS, Lee GY, Park K, Lee D, Jeong ST, Song JW. Genomic Epidemiology and Active Surveillance to Investigate Outbreaks of Hantaviruses. Front Cell Infect Microbiol 2021; 10:532388. [PMID: 33489927 PMCID: PMC7819890 DOI: 10.3389/fcimb.2020.532388] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 11/19/2020] [Indexed: 12/11/2022] Open
Abstract
Emerging and re-emerging RNA viruses pose significant public health, economic, and societal burdens. Hantaviruses (genus Orthohantavirus, family Hantaviridae, order Bunyavirales) are enveloped, negative-sense, single-stranded, tripartite RNA viruses that are emerging zoonotic pathogens harbored by small mammals such as rodents, bats, moles, and shrews. Orthohantavirus infections cause hemorrhagic fever with renal syndrome (HFRS) and hantavirus cardiopulmonary syndrome in humans (HCPS). Active targeted surveillance has elucidated high-resolution phylogeographic relationships between patient- and rodent-derived orthohantavirus genome sequences and identified the infection source by temporally and spatially tracking viral genomes. Active surveillance of patients with HFRS entails 1) recovering whole-genome sequences of Hantaan virus (HTNV) using amplicon (multiplex PCR-based) next-generation sequencing, 2) tracing the putative infection site of a patient by administering an epidemiological questionnaire, and 3) collecting HTNV-positive rodents using targeted rodent trapping. Moreover, viral genome tracking has been recently performed to rapidly and precisely characterize an outbreak from the emerging virus. Here, we reviewed genomic epidemiological and active surveillance data for determining the emergence of zoonotic RNA viruses based on viral genomic sequences obtained from patients and natural reservoirs. This review highlights the recent studies on tracking viral genomes for identifying and characterizing emerging viral outbreaks worldwide. We believe that active surveillance is an effective method for identifying rodent-borne orthohantavirus infection sites, and this report provides insights into disease mitigation and preparedness for managing emerging viral outbreaks.
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Affiliation(s)
- Won-Keun Kim
- Department of Microbiology, College of Medicine, Hallym University, Chuncheon, South Korea.,Institute of Medical Science, College of Medicine, Hallym University, Chuncheon, South Korea
| | - Seungchan Cho
- Department of Microbiology, Korea University College of Medicine, Seoul, South Korea
| | - Seung-Ho Lee
- Department of Microbiology, Korea University College of Medicine, Seoul, South Korea
| | - Jin Sun No
- Department of Microbiology, Korea University College of Medicine, Seoul, South Korea
| | - Geum-Young Lee
- Department of Microbiology, Korea University College of Medicine, Seoul, South Korea
| | - Kyungmin Park
- Department of Microbiology, Korea University College of Medicine, Seoul, South Korea.,BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul, South Korea
| | - Daesang Lee
- 4th R&D Institute, Agency for Defense Development, Daejeon, South Korea
| | - Seong Tae Jeong
- 4th R&D Institute, Agency for Defense Development, Daejeon, South Korea
| | - Jin-Won Song
- Department of Microbiology, Korea University College of Medicine, Seoul, South Korea.,BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul, South Korea
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182
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Kim WK, No JS, Lee D, Jung J, Park H, Yi Y, Kim JA, Lee SH, Kim Y, Park S, Cho S, Lee GY, Song DH, Gu SH, Park K, Kim HC, Wiley MR, Chain PSG, Jeong ST, Klein TA, Palacios G, Song JW. Active Targeted Surveillance to Identify Sites of Emergence of Hantavirus. Clin Infect Dis 2021; 70:464-473. [PMID: 30891596 DOI: 10.1093/cid/ciz234] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 03/19/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Endemic outbreaks of hantaviruses pose a critical public health threat worldwide. Hantaan orthohantavirus (HTNV) causes hemorrhagic fever with renal syndrome (HFRS) in humans. Using comparative genomic analyses of partial and nearly complete sequences of HTNV from humans and rodents, we were able to localize, with limitations, the putative infection locations for HFRS patients. Partial sequences might not reflect precise phylogenetic positions over the whole-genome sequences; finer granularity of rodent sampling reflects more precisely the circulation of strains. METHODS Five HFRS specimens were collected. Epidemiological surveys were conducted with the patients during hospitalization. We conducted active surveillance at suspected HFRS outbreak areas. We performed multiplex polymerase chain reaction-based next-generation sequencing to obtain the genomic sequence of HTNV from patients and rodents. The phylogeny of human- and rodent-derived HTNV was generated using the maximum likelihood method. For phylogeographic analyses, the tracing of HTNV genomes from HFRS patients was defined on the bases of epidemiological interviews, phylogenetic patterns of the viruses, and geographic locations of HTNV-positive rodents. RESULTS The phylogeographic analyses demonstrated genetic clusters of HTNV strains from clinical specimens, with HTNV circulating in rodents at suspected sites of patient infections. CONCLUSIONS This study demonstrates a major shift in molecular epidemiological surveillance of HTNV. Active targeted surveillance was performed at sites of suspected infections, allowing the high-resolution phylogeographic analysis to reveal the site of emergence of HTNV. We posit that this novel approach will make it possible to identify infectious sources, perform disease risk assessment, and implement preparedness against vector-borne viruses.
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Affiliation(s)
- Won-Keun Kim
- Department of Microbiology, College of Medicine, Korea University, Seoul
| | - Jin Sun No
- Department of Microbiology, College of Medicine, Korea University, Seoul
| | - Daesang Lee
- 4th Research and Development Institute, Agency for Defense Development, Daejeon
| | | | | | | | - Jeong-Ah Kim
- Department of Microbiology, College of Medicine, Korea University, Seoul
| | - Seung-Ho Lee
- Department of Microbiology, College of Medicine, Korea University, Seoul
| | - Yujin Kim
- Armed Forces Medical Center, Seongnam
| | - Sunhye Park
- 4th Research and Development Institute, Agency for Defense Development, Daejeon
| | - Seungchan Cho
- Department of Microbiology, College of Medicine, Korea University, Seoul
| | - Geum-Young Lee
- Department of Microbiology, College of Medicine, Korea University, Seoul
| | - Dong Hyun Song
- 4th Research and Development Institute, Agency for Defense Development, Daejeon
| | - Se Hun Gu
- 4th Research and Development Institute, Agency for Defense Development, Daejeon
| | - Kkothanahreum Park
- Department of Microbiology, College of Medicine, Korea University, Seoul
| | | | - Michael R Wiley
- Center for Genome Sciences, US Army Medical Research Institute of Infectious Diseases, Maryland
| | | | - Seong Tae Jeong
- 4th Research and Development Institute, Agency for Defense Development, Daejeon
| | | | - Gustavo Palacios
- Center for Genome Sciences, US Army Medical Research Institute of Infectious Diseases, Maryland
| | - Jin-Won Song
- Department of Microbiology, College of Medicine, Korea University, Seoul
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183
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Dernstedt A, Leidig J, Holm A, Kerkman PF, Mjösberg J, Ahlm C, Henriksson J, Hultdin M, Forsell MNE. Regulation of Decay Accelerating Factor Primes Human Germinal Center B Cells for Phagocytosis. Front Immunol 2021; 11:599647. [PMID: 33469456 PMCID: PMC7813799 DOI: 10.3389/fimmu.2020.599647] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 11/13/2020] [Indexed: 01/10/2023] Open
Abstract
Germinal centers (GC) are sites for extensive B cell proliferation and homeostasis is maintained by programmed cell death. The complement regulatory protein Decay Accelerating Factor (DAF) blocks complement deposition on host cells and therefore also phagocytosis of cells. Here, we show that B cells downregulate DAF upon BCR engagement and that T cell-dependent stimuli preferentially led to activation of DAFlo B cells. Consistent with this, a majority of light and dark zone GC B cells were DAFlo and susceptible to complement-dependent phagocytosis, as compared with DAFhi GC B cells. We could also show that the DAFhi GC B cell subset had increased expression of the plasma cell marker Blimp-1. DAF expression was also modulated during B cell hematopoiesis in the human bone marrow. Collectively, our results reveal a novel role of DAF to pre-prime activated human B cells for phagocytosis prior to apoptosis.
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Affiliation(s)
- Andy Dernstedt
- Department of Clinical Microbiology, Section of Infection and Immunology, Umeå University, Umeå, Sweden
| | - Jana Leidig
- Department of Clinical Microbiology, Section of Infection and Immunology, Umeå University, Umeå, Sweden
| | - Anna Holm
- Department of Clinical Sciences, Division of Otorhinolaryngology, Umeå University, Umeå, Sweden
| | - Priscilla F Kerkman
- Department of Clinical Microbiology, Section of Infection and Immunology, Umeå University, Umeå, Sweden
| | - Jenny Mjösberg
- Center for Infectious Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Clas Ahlm
- Department of Clinical Microbiology, Section of Infection and Immunology, Umeå University, Umeå, Sweden
| | - Johan Henriksson
- Molecular Infection Medicine Sweden, Department of Molecular Biology, Umeå University, Umeå, Sweden
| | - Magnus Hultdin
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
| | - Mattias N E Forsell
- Department of Clinical Microbiology, Section of Infection and Immunology, Umeå University, Umeå, Sweden
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184
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Munir N, Jahangeer M, Hussain S, Mahmood Z, Ashiq M, Ehsan F, Akram M, Ali Shah SM, Riaz M, Sana A. Hantavirus diseases pathophysiology, their diagnostic strategies and therapeutic approaches: A review. Clin Exp Pharmacol Physiol 2021; 48:20-34. [PMID: 32894790 DOI: 10.1111/1440-1681.13403] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 08/24/2020] [Accepted: 08/25/2020] [Indexed: 12/20/2022]
Abstract
Hantaviruses are enveloped negative (-) single-stranded RNA viruses belongs to Hantaviridae family, hosted by small rodents and entering into the human body through inhalation, causing haemorrhagic fever with renal syndrome (HFRS) and hantavirus pulmonary syndrome (HPS) also known as hantavirus cardiopulmonary syndrome (HCPS). Hantaviruses infect approximately more than 200 000 people annually all around the world and its mortality rate is about 35%-40%. Hantaviruses play significant role in affecting the target cells as these inhibit the apoptotic factor in these cells. These viruses impair the integrity of endothelial barrier due to an excessive innate immune response that is proposed to be central in the pathogenesis and is a hallmark of hantavirus disease. A wide range of different diagnostic tools including polymerase chain reaction (PCR), focus reduction neutralization test (FRNT), enzyme-linked immunosorbent assay (ELISA), immunoblot assay (IBA), immunofluorescence assay (IFA), and other molecular techniques are used as detection tools for hantavirus in the human body. Now the availability of therapeutic modalities is the major challenge to control this deadly virus because still no FDA approved drug or vaccine is available. Antiviral agents, DNA-based vaccines, polyclonal and monoclonal antibodies neutralized the viruses so these techniques are considered as the hope for the treatment of hantavirus disease. This review has been compiled to provide a comprehensive overview of hantaviruses disease, its pathophysiology, diagnostic tools and the treatment approaches to control the hantavirus infection.
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Affiliation(s)
- Naveed Munir
- Department of Biochemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Jahangeer
- Department of Biochemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Shoukat Hussain
- Department of Biochemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Zahed Mahmood
- Department of Biochemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Mehvish Ashiq
- Department of Chemistry, The Women University Multan, Multan, Pakistan
| | - Fatima Ehsan
- Department of Biochemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Akram
- Department of Eastern Medicine, Directorate of Medical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Syed Muhammad Ali Shah
- Department of Eastern Medicine, Directorate of Medical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Riaz
- Department of Allied Health Sciences, Sargodha Medical College, University of Sargodha, Sargodha, Pakistan
| | - Aneezah Sana
- Department of Biochemistry, Government College University Faisalabad, Faisalabad, Pakistan
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185
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Li Z, Shen Y, Song Y, Zhang Y, Zhang C, Ma Y, Zhang F, Chen L. ER stress-related molecules induced by Hantaan virus infection in differentiated THP-1 cells. Cell Stress Chaperones 2021; 26:41-50. [PMID: 32870480 PMCID: PMC7736395 DOI: 10.1007/s12192-020-01150-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 07/30/2020] [Accepted: 08/06/2020] [Indexed: 12/15/2022] Open
Abstract
Endoplasmic reticulum stress (ER stress) can be induced by virus infection. In this part, we explored whether Hantaan virus (HTNV) infection could induce ER stress in differentiated THP-1 (dTHP-1) cells. It showed that the mRNA and protein levels of ER stress-related 78 kDa glucose-regulated protein (GRP78, HSPA5) and mRNA levels of X box-binding protein 1 (XBP-1), activating transcription factor 6(ATF6) and PKR-like ER kinase (PERK) after HTNV infection, were significantly higher than that in uninfected control group. However, the mRNA levels of C/EBP homologous protein (CHOP), glucose-regulated protein 94 (GRP94, HSPC4), and inositol-requiring enzyme1 (IRE1) were not significantly different between the infected group and the untreated group in 2 h after virus infection. It is unusual in activating GRP78 but not GRP94. Meanwhile, dTHP-1 cells infected with HTNV at 12 h did not show obvious apoptosis. These results indicated that the HTNV infection could induce the unfolded protein response (UPR) in dTHP-1 cells, without directly leading to cell apoptosis during 12 h after virus infection.
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Affiliation(s)
- Zhuo Li
- Department of Immunology, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, Shaanxi, China
- Department of Medical Laboratory Technology, Xi'an Health School, Xi'an, Shaanxi, China
| | - Yuting Shen
- Department of Immunology, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, Shaanxi, China
| | - Yun Song
- Department of Immunology, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, Shaanxi, China
| | - Yusi Zhang
- Department of Immunology, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, Shaanxi, China
| | - Chunmei Zhang
- Department of Immunology, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, Shaanxi, China
| | - Ying Ma
- Department of Immunology, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, Shaanxi, China
| | - Fanglin Zhang
- Department of Microbiology, The Fourth Military Medical University, Xi'an, Shaanxi, China.
| | - Lihua Chen
- Department of Immunology, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, Shaanxi, China.
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186
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Lwande OW, Mohamed N, Bucht G, Ahlm C, Olsson G, Evander M. Seewis hantavirus in common shrew (Sorex araneus) in Sweden. Virol J 2020; 17:198. [PMID: 33375950 PMCID: PMC7770741 DOI: 10.1186/s12985-020-01477-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/21/2020] [Indexed: 11/10/2022] Open
Abstract
Background Rodent borne hantaviruses are emerging viruses infecting humans through inhalation. They cause hemorrhagic fever with renal syndrome and hemorrhagic cardiopulmonary syndrome. Recently, hantaviruses have been detected in other small mammals such as Soricomorpha (shrews, moles) and Chiroptera (bats), suggested as reservoirs for potential pandemic viruses and to play a role in the evolution of hantaviruses. It is important to study the global virome in different reservoirs, therefore our aim was to investigate whether shrews in Sweden carried any hantaviruses. Moreover, to accurately determine the host species, we developed a molecular method for identification of shrews. Method Shrews (n = 198), caught during 1998 in Sweden, were screened with a pan-hantavirus PCR using primers from a conserved region of the large genome segment. In addition to morphological typing of shrews, we developed a molecular based typing method using sequencing of the mitochondrial cytochrome C oxidase I (COI) and cytochrome B (CytB) genes. PCR amplified hantavirus and shrew fragments were sequenced and phylogenetically analysed. Results Hantavirus RNA was detected in three shrews. Sequencing identified the virus as Seewis hantavirus (SWSV), most closely related to previous isolates from Finland and Russia. All three SWSV sequences were retrieved from common shrews (Sorex araneus) sampled in Västerbotten County, Sweden. The genetic assay for shrew identification was able to identify native Swedish shrew species, and the genetic typing of the Swedish common shrews revealed that they were most similar to common shrews from Russia. Conclusion We detected SWSV RNA in Swedish common shrew samples and developed a genetic assay for shrew identification based on the COI and CytB genes. This was the first report of presence of hantavirus in Swedish shrews.
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Affiliation(s)
| | - Nahla Mohamed
- Department of Clinical Microbiology, Virology, Umeå University, Umeå, Sweden
| | - Göran Bucht
- Department of Clinical Microbiology, Virology, Umeå University, Umeå, Sweden
| | - Clas Ahlm
- Department of Clinical Microbiology, Infection and Immunology, Umeå University, Umeå, Sweden
| | - Gert Olsson
- Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Magnus Evander
- Department of Clinical Microbiology, Virology, Umeå University, Umeå, Sweden.
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A comprehensive screening of the whole proteome of hantavirus and designing a multi-epitope subunit vaccine for cross-protection against hantavirus: Structural vaccinology and immunoinformatics study. Microb Pathog 2020; 150:104705. [PMID: 33352214 DOI: 10.1016/j.micpath.2020.104705] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 10/18/2020] [Accepted: 12/10/2020] [Indexed: 11/23/2022]
Abstract
Hantaviruses are an emerging zoonotic group of rodent-borne viruses that are having serious implications on global public health due to the increase in outbreaks. Since there is no permanent cure, there is increasing interest in developing a vaccine against the hantavirus. This research aimed to design a robust cross-protective subunit vaccine using a novel immunoinformatics approach. After careful evaluation, the best predicted cytotoxic & helper T-cell and B-cell epitopes from nucleocapsid proteins, glycoproteins, RdRp proteins, and non-structural proteins were considered as potential vaccine candidates. Among the four generated vaccine models with different adjuvant, the model with toll-like receptor-4 (TLR-4) agonist adjuvant was selected because of its high antigenicity, non-allergenicity, and structural quality. The selected model was 654 amino acids long and had a molecular weight of 70.5 kDa, which characterizes the construct as a good antigenic vaccine candidate. The prediction of the conformational B-lymphocyte (CBL) epitope secured its ability to induce the humoral response. Thereafter, disulfide engineering improved vaccine stability. Afterwards, the molecular docking confirmed a good binding affinity of -1292 kj/mol with considered immune receptor TLR-4 and the dynamics simulation showed high stability of the vaccine-receptor complex. Later, the in silico cloning confirmed the better expression of the constructed vaccine protein in E. coli K12. Finally, in in silico immune simulation, significantly high levels of immunoglobulin M (IgM), immunoglobulin G1 (IgG1), cytotoxic & helper T lymphocyte (CTL & HTL) populations, and numerous cytokines such as interferon-γ (IFN-γ), interleukin-2 (IL-2) etc. were found as coherence with actual immune response and also showed faster antigen clearance for repeated exposures. Nonetheless, experimental validation can demonstrate the safety and cross-protective ability of the proposed vaccine to fight against hantavirus infection.
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188
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Gupta M, Jain R, Taneja S, Chaudhary G, Khari M, Verdú E. Real-time measurement of the uncertain epidemiological appearances of COVID-19 infections. Appl Soft Comput 2020; 101:107039. [PMID: 33519324 PMCID: PMC7833666 DOI: 10.1016/j.asoc.2020.107039] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/04/2020] [Accepted: 12/13/2020] [Indexed: 12/23/2022]
Abstract
Virus diseases are a continued threat to human health in both community and healthcare settings. The current virus disease COVID-19 outbreak raises an unparalleled public health issue for the world at large. Wuhan is the city in China from where this virus came first and, after some time the whole world was affected by this severe disease. It is a challenge for every country's people and higher authorities to fight with this battle due to the insufficient number of resources. On-going assessment of the epidemiological features and future impacts of the COVID-19 disease is required to stay up-to-date of any changes to its spread dynamics and foresee needed resources and consequences in different aspects as social or economic ones. This paper proposes a prediction model of confirmed and death cases of COVID-19. The model is based on a deep learning algorithm with two long short-term memory (LSTM) layers. We consider the available infection cases of COVID-19 in India from January 22, 2020, till October 9, 2020, and parameterize the model. The proposed model is an inference to obtain predicted coronavirus cases and deaths for the next 30 days, taking the data of the previous 260 days of duration of the pandemic. The proposed deep learning model has been compared with other popular prediction methods (Support Vector Machine, Decision Tree and Random Forest) showing a lower normalized RMSE. This work also compares COVID-19 with other previous diseases (SARS, MERS, h1n1, Ebola, and 2019-nCoV). Based on the mortality rate and virus spread, this study concludes that the novel coronavirus (COVID-19) is more dangerous than other diseases.
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Affiliation(s)
| | - Rachna Jain
- Bharati Vidyapeeth's College of Engineering, Delhi, India
| | - Soham Taneja
- Bharati Vidyapeeth's College of Engineering, Delhi, India
| | | | - Manju Khari
- Netaji Subhas University of Technology, East Campus, Delhi, India
| | - Elena Verdú
- Universidad Internacional de La Rioja, Logroño, Spain
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189
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Rissanen I, Stass R, Krumm SA, Seow J, Hulswit RJG, Paesen GC, Hepojoki J, Vapalahti O, Lundkvist Å, Reynard O, Volchkov V, Doores KJ, Huiskonen JT, Bowden TA. Molecular rationale for antibody-mediated targeting of the hantavirus fusion glycoprotein. eLife 2020; 9:e58242. [PMID: 33349334 PMCID: PMC7755396 DOI: 10.7554/elife.58242] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 11/26/2020] [Indexed: 01/22/2023] Open
Abstract
The intricate lattice of Gn and Gc glycoprotein spike complexes on the hantavirus envelope facilitates host-cell entry and is the primary target of the neutralizing antibody-mediated immune response. Through study of a neutralizing monoclonal antibody termed mAb P-4G2, which neutralizes the zoonotic pathogen Puumala virus (PUUV), we provide a molecular-level basis for antibody-mediated targeting of the hantaviral glycoprotein lattice. Crystallographic analysis demonstrates that P-4G2 binds to a multi-domain site on PUUV Gc and may preclude fusogenic rearrangements of the glycoprotein that are required for host-cell entry. Furthermore, cryo-electron microscopy of PUUV-like particles in the presence of P-4G2 reveals a lattice-independent configuration of the Gc, demonstrating that P-4G2 perturbs the (Gn-Gc)4 lattice. This work provides a structure-based blueprint for rationalizing antibody-mediated targeting of hantaviruses.
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Affiliation(s)
- Ilona Rissanen
- Division of Structural Biology, Wellcome Centre for Human Genetics, University of OxfordOxfordUnited Kingdom
- Helsinki Institute of Life Science HiLIFE, University of HelsinkiHelsinkiFinland
- Molecular and Integrative Biosciences Research Programme, The Faculty of Biological and Environmental Sciences, University of HelsinkiHelsinkiFinland
| | - Robert Stass
- Division of Structural Biology, Wellcome Centre for Human Genetics, University of OxfordOxfordUnited Kingdom
| | - Stefanie A Krumm
- Department of Infectious Diseases, King's College London, Guy's HospitalLondonUnited Kingdom
| | - Jeffrey Seow
- Department of Infectious Diseases, King's College London, Guy's HospitalLondonUnited Kingdom
| | - Ruben JG Hulswit
- Division of Structural Biology, Wellcome Centre for Human Genetics, University of OxfordOxfordUnited Kingdom
| | - Guido C Paesen
- Division of Structural Biology, Wellcome Centre for Human Genetics, University of OxfordOxfordUnited Kingdom
| | - Jussi Hepojoki
- Institute of Veterinary Pathology, Vetsuisse Faculty, University of ZürichZürichSwitzerland
- Department of Virology, Medicum, Faculty of Medicine, University of HelsinkiHelsinkiFinland
| | - Olli Vapalahti
- Departments of Virology and Veterinary Biosciences, University of Helsinki and HUSLAB, Helsinki University HospitalHelsinkiFinland
| | - Åke Lundkvist
- Zoonosis Science Center, Department of Medical Biochemistry and Microbiology, Uppsala UniversityUppsalaSweden
| | - Olivier Reynard
- CIRI, Centre International de Recherche en Infectiologie, INSERM U1111, CNRS UMR5308, Université LyonLyonFrance
| | - Viktor Volchkov
- CIRI, Centre International de Recherche en Infectiologie, INSERM U1111, CNRS UMR5308, Université LyonLyonFrance
| | - Katie J Doores
- Department of Infectious Diseases, King's College London, Guy's HospitalLondonUnited Kingdom
| | - Juha T Huiskonen
- Division of Structural Biology, Wellcome Centre for Human Genetics, University of OxfordOxfordUnited Kingdom
- Helsinki Institute of Life Science HiLIFE, University of HelsinkiHelsinkiFinland
- Molecular and Integrative Biosciences Research Programme, The Faculty of Biological and Environmental Sciences, University of HelsinkiHelsinkiFinland
| | - Thomas A Bowden
- Division of Structural Biology, Wellcome Centre for Human Genetics, University of OxfordOxfordUnited Kingdom
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Chekashov VN, Zakharov KS, Magerramov SV, Selenina AG, Martsokha KS, Shilov MM, Sludsky AA, Ermakov NM, Korneev MG, Tolokonnikova SI, Tarasov MA, Sonin VK, Romanov RA, Matrosov AN, Popov NV. Ecological Aspects of the Outbreak of Hemorrhagic Fever with Renal Syndrome in the Territory of the Saratov Region. BIOL BULL+ 2020. [DOI: 10.1134/s1062359020100301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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191
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Ferro I, Bellomo CM, López W, Coelho R, Alonso D, Bruno A, Córdoba FE, Martinez VP. Hantavirus pulmonary syndrome outbreaks associated with climate variability in Northwestern Argentina, 1997-2017. PLoS Negl Trop Dis 2020; 14:e0008786. [PMID: 33253144 PMCID: PMC7728390 DOI: 10.1371/journal.pntd.0008786] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 12/10/2020] [Accepted: 09/09/2020] [Indexed: 01/10/2023] Open
Abstract
Background Rodent-borne hantaviruses (genus Orthohantavirus) are the etiologic agents causing two human diseases: hemorrhagic fever with renal syndrome (HFRS) in Euroasia; and hantavirus pulmonary syndrome (HPS) in North and South America. In South America fatality rates of HPS can reach up to 35%–50%. The transmission of pathogenic hantaviruses to humans occurs mainly via inhalation of aerosolized excreta from infected rodents. Thus, the epidemiology of HPS is necessarily linked to the ecology of their rodent hosts and the contact with a human, which in turn may be influenced by climatic variability. Here we examined the relationship between climatic variables and hantavirus transmission aim to develop an early warning system of potential hantavirus outbreaks based on ecologically relevant climatic factors. Methodology and main findings We compiled reported HPS cases in northwestern Argentina during the 1997–2017 period and divided our data into biannual, quarterly, and bimestrial time periods to allow annual and shorter time delays to be observed. To evaluate the relationship of hantavirus transmission with mean temperature and precipitation we used dynamic regression analysis. We found a significant association between HPS incidence and lagged rainfall and temperature with a delay of 2 to 6 months. For the biannual and quarterly models, hantavirus transmission was positively associated with lagged rainfall and temperature; whereas the bimestrial models indicate a direct relationship with the rainfall but inverse for temperature in the second lagged period. Conclusions/Significance This work demonstrates that climate variability plays a significant role in the transmission of hantavirus in northwestern Argentina. The model developed in this study provides a basis for the forecast of potential HPS outbreaks based on climatic parameters. Our findings are valuable for the development of public health policies and prevention strategies to mitigate possible outbreaks. Nonetheless, a surveillance program on rodent population dynamics would lead to a more accurate forecast of HPS outbreaks. Hantavirus pulmonary syndrome (HPS) is a Pan-American emerging disease with a high mortality rate caused by a rodent-borne virus. In Argentina, almost half of the HPS infections occur in the northwestern endemic region. Most of the reported cases (75%) developed severe respiratory insufficiency, of which 30% required mechanical ventilation and 15% with a fatal outcome. In this study area, nearly half of the population is below the poverty line, particularly in rural areas, where most infections occur. Since there are no vaccines currently available nor specific therapeutic treatments, prevention of hantavirus infection involves mainly environmental management practices and educational campaigns. Our results provide a framework for the planning and implementation of early public health prevention campaigns based on the significant relationship between hantavirus outbreaks and delayed climatic variables.
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Affiliation(s)
- Ignacio Ferro
- Instituto de Ecorregiones Andinas—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)—Universidad Nacional de Jujuy (UNJu), San Salvador de Jujuy, Argentina
- * E-mail:
| | - Carla M. Bellomo
- Instituto Nacional de Enfermedades Infecciosas (INEI), Administración Nacional de Laboratorios e Institutos de Salud (ANLIS) “Dr. C. G. Malbrán”, Buenos Aires, Argentina
| | - Walter López
- Instituto de Investigaciones de Enfermedades Tropicales, Oran, Salta, Argentina
| | - Rocío Coelho
- Instituto Nacional de Enfermedades Infecciosas (INEI), Administración Nacional de Laboratorios e Institutos de Salud (ANLIS) “Dr. C. G. Malbrán”, Buenos Aires, Argentina
| | - Daniel Alonso
- Instituto Nacional de Enfermedades Infecciosas (INEI), Administración Nacional de Laboratorios e Institutos de Salud (ANLIS) “Dr. C. G. Malbrán”, Buenos Aires, Argentina
| | | | - Francisco E. Córdoba
- Instituto de Ecorregiones Andinas—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)—Universidad Nacional de Jujuy (UNJu), San Salvador de Jujuy, Argentina
| | - Valeria P. Martinez
- Instituto Nacional de Enfermedades Infecciosas (INEI), Administración Nacional de Laboratorios e Institutos de Salud (ANLIS) “Dr. C. G. Malbrán”, Buenos Aires, Argentina
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192
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Albery GF, Becker DJ. Fast-lived Hosts and Zoonotic Risk. Trends Parasitol 2020; 37:117-129. [PMID: 33214097 DOI: 10.1016/j.pt.2020.10.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 10/25/2020] [Accepted: 10/26/2020] [Indexed: 01/02/2023]
Abstract
Because most emerging human pathogens originate in mammals, many studies aim to identify host traits that determine the risk of sourcing zoonotic outbreaks. Studies regularly assert that 'fast-lived' mammal species exhibiting greater fecundity and shorter lifespans tend to host more zoonoses; however, the causes of this association remain poorly understood and they cover a range of immune and nonimmune mechanisms. We discuss these drivers in the context of evolutionary ecology and wildlife-human interactions. Ultimately, differentiating these mechanisms will require linking interspecific variation in life history with immunity, pathogen diversity, transmissibility, and zoonotic risk, and critical data gaps currently limit our ability to do so. We highlight sampling and analytical frameworks to address this gap and to better inform zoonotic reservoir prediction.
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Affiliation(s)
- Gregory F Albery
- Department of Biology, Georgetown University, Washington, DC, USA.
| | - Daniel J Becker
- Department of Biology, University of Oklahoma, Norman, OK, USA.
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193
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Lozynskyi I, Shulgan A, Zarichna O, Ben I, Kessler W, Cao X, Nesterova O, Glass GE, Spruill-Harrell B, Taylor MK, Williams EP, Jonsson CB. Seroprevalence of Old World Hantaviruses and Crimean Congo Hemorrhagic Fever Viruses in Human Populations in Northwestern Ukraine. Front Cell Infect Microbiol 2020; 10:589464. [PMID: 33194835 PMCID: PMC7642871 DOI: 10.3389/fcimb.2020.589464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 09/30/2020] [Indexed: 12/15/2022] Open
Abstract
In Ukraine, a retrospective review of clinical case reports by public health officials suggest that human cases of febrile illnesses associated with hemorrhage may be due to infections of Crimean-Congo hemorrhagic fever virus (CCHFV) and Old World hantaviruses. In a serosurvey of 966 healthy individuals in the Lviv Oblast, Ukraine, bordering Poland, we found that 1.6% showed cross-reactivity to hantaviral antigens by an immunofluorescence assay (IFA) and 1.7% of the study participants had antibodies cross-reactive to CCHFV by enzyme-linked immunosorbent assay (ELISA). Demographic variables and history of exposures obtained through questionnaires were assessed by logistic regression models for association with seroprevalence for both viruses with no significant risk factors found. Analysis of spatial distribution identified two clusters of samples positive for antibodies to both hantaviruses and CCHFV, which, however, were not statistically significant (p > 0.05). In general, the study results suggest that the population of the study area is exposed to hantaviruses and CCHFV. Further surveillance for respective pathogens in Ukraine is warranted and prospective surveillance of febrile patients with unidentified febrile illness.
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Affiliation(s)
- Ihor Lozynskyi
- Research Institute of Epidemiology and Hygiene of Danylo Halytskyi, Lviv National Medical University, Lviv, Ukraine
| | - Anna Shulgan
- Research Institute of Epidemiology and Hygiene of Danylo Halytskyi, Lviv National Medical University, Lviv, Ukraine
| | - Olha Zarichna
- Research Institute of Epidemiology and Hygiene of Danylo Halytskyi, Lviv National Medical University, Lviv, Ukraine
| | - Iryna Ben
- Research Institute of Epidemiology and Hygiene of Danylo Halytskyi, Lviv National Medical University, Lviv, Ukraine
| | - William Kessler
- Department of Geography, University of Florida, Gainesville, FL, United States
| | - Xueyuan Cao
- College of Nursing, The University of Tennessee Health Science Center, Memphis, TN, United States
| | | | - Gregory E Glass
- Department of Geography, University of Florida, Gainesville, FL, United States
| | - Briana Spruill-Harrell
- Department of Microbiology, Immunology and Biochemistry, The University of Tennessee Health Science Center, Memphis, TN, United States
| | - Mariah K Taylor
- Department of Microbiology, Immunology and Biochemistry, The University of Tennessee Health Science Center, Memphis, TN, United States
| | - Evan P Williams
- Department of Microbiology, Immunology and Biochemistry, The University of Tennessee Health Science Center, Memphis, TN, United States
| | - Colleen B Jonsson
- Department of Microbiology, Immunology and Biochemistry, The University of Tennessee Health Science Center, Memphis, TN, United States
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194
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Taylor MK, Williams EP, Wongsurawat T, Jenjaroenpun P, Nookaew I, Jonsson CB. Amplicon-Based, Next-Generation Sequencing Approaches to Characterize Single Nucleotide Polymorphisms of Orthohantavirus Species. Front Cell Infect Microbiol 2020; 10:565591. [PMID: 33163416 PMCID: PMC7591466 DOI: 10.3389/fcimb.2020.565591] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 09/08/2020] [Indexed: 12/26/2022] Open
Abstract
Whole-genome sequencing (WGS) of viruses from patient or environmental samples can provide tremendous insight into the epidemiology, drug resistance or evolution of a virus. However, we face two common hurdles in obtaining robust sequence information; the low copy number of viral genomes in specimens and the error introduced by WGS techniques. To optimize detection and minimize error in WGS of hantaviruses, we tested four amplification approaches and different amplicon pooling methods for library preparation and examined these preparations using two sequencing platforms, Illumina MiSeq and Oxford Nanopore Technologies MinION. First, we tested and optimized primers used for whole segment PCR or one kilobase amplicon amplification for even coverage using RNA isolated from the supernatant of virus-infected cells. Once optimized we assessed two sources of total RNA, virus-infected cells and supernatant from the virus-infected cells, with four variations of primer pooling for amplicons, and six different amplification approaches. We show that 99–100% genome coverage was obtained using a one-step RT-PCR reaction with one forward and reverse primer. Using a two-step RT-PCR with three distinct tiling approaches for the three genomic segments (vRNAs), we optimized primer pooling approaches for PCR amplification to achieve a greater number of aligned reads, average depth of genome, and genome coverage. The single nucleotide polymorphisms identified from MiSeq and MinION sequencing suggested intrinsic mutation frequencies of ~10−5-10−7 per genome and 10−4-10−5 per genome, respectively. We noted no difference in the coverage or accuracy when comparing WGS results with amplicons amplified from RNA extracted from infected cells or supernatant of these infected cells. Our results show that high-throughput diagnostics requiring the identification of hantavirus species or strains can be performed using MiSeq or MinION using a one-step approach. However, the two-step MiSeq approach outperformed the MinION in coverage depth and accuracy, and hence would be superior for assessment of genomes for epidemiology or evolutionary questions using the methods developed herein.
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Affiliation(s)
- Mariah K Taylor
- Department of Microbiology, Immunology and Biochemistry, The University of Tennessee Health Science Center, Memphis, TN, United States
| | - Evan P Williams
- Department of Microbiology, Immunology and Biochemistry, The University of Tennessee Health Science Center, Memphis, TN, United States
| | - Thidathip Wongsurawat
- Department of Biomedical Informatics, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Piroon Jenjaroenpun
- Department of Biomedical Informatics, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Intawat Nookaew
- Department of Biomedical Informatics, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Colleen B Jonsson
- Department of Microbiology, Immunology and Biochemistry, The University of Tennessee Health Science Center, Memphis, TN, United States
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195
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Shrivastava-Ranjan P, Lo MK, Chatterjee P, Flint M, Nichol ST, Montgomery JM, O'Keefe BR, Spiropoulou CF. Hantavirus Infection Is Inhibited by Griffithsin in Cell Culture. Front Cell Infect Microbiol 2020; 10:561502. [PMID: 33251157 PMCID: PMC7671970 DOI: 10.3389/fcimb.2020.561502] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 09/22/2020] [Indexed: 12/14/2022] Open
Abstract
Andes virus (ANDV) and Sin Nombre virus (SNV), highly pathogenic hantaviruses, cause hantavirus pulmonary syndrome in the Americas. Currently no therapeutics are approved for use against these infections. Griffithsin (GRFT) is a high-mannose oligosaccharide-binding lectin currently being evaluated in phase I clinical trials as a topical microbicide for the prevention of human immunodeficiency virus (HIV-1) infection (ClinicalTrials.gov Identifiers: NCT04032717, NCT02875119) and has shown broad-spectrum in vivo activity against other viruses, including severe acute respiratory syndrome coronavirus, hepatitis C virus, Japanese encephalitis virus, and Nipah virus. In this study, we evaluated the in vitro antiviral activity of GRFT and its synthetic trimeric tandemer 3mGRFT against ANDV and SNV. Our results demonstrate that GRFT is a potent inhibitor of ANDV infection. GRFT inhibited entry of pseudo-particles typed with ANDV envelope glycoprotein into host cells, suggesting that it inhibits viral envelope protein function during entry. 3mGRFT is more potent than GRFT against ANDV and SNV infection. Our results warrant the testing of GRFT and 3mGRFT against ANDV infection in animal models.
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Affiliation(s)
- Punya Shrivastava-Ranjan
- Division of High Consequence Pathogens and Pathology, Viral Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Michael K Lo
- Division of High Consequence Pathogens and Pathology, Viral Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Payel Chatterjee
- Division of High Consequence Pathogens and Pathology, Viral Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Mike Flint
- Division of High Consequence Pathogens and Pathology, Viral Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Stuart T Nichol
- Division of High Consequence Pathogens and Pathology, Viral Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Joel M Montgomery
- Division of High Consequence Pathogens and Pathology, Viral Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Barry R O'Keefe
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, MD, United States.,Division of Cancer Treatment and Diagnosis, Natural Products Branch, Developmental Therapeutics Program, National Cancer Institute, Frederick, MD, United States
| | - Christina F Spiropoulou
- Division of High Consequence Pathogens and Pathology, Viral Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, GA, United States
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196
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Sunil-Chandra NP, Jayaweera JAAS, Kumbukgolla W, Jayasundara MVML. Association of Hantavirus Infections and Leptospirosis With the Occurrence of Chronic Kidney Disease of Uncertain Etiology in the North Central Province of Sri Lanka: A Prospective Study With Patients and Healthy Persons. Front Cell Infect Microbiol 2020; 10:556737. [PMID: 33117726 PMCID: PMC7578220 DOI: 10.3389/fcimb.2020.556737] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 08/28/2020] [Indexed: 12/30/2022] Open
Abstract
Chronic Kidney disease of uncertain etiology (CKDu) has become a significant disease burden, affecting farming community of Sri Lanka and the exact etiology, which could be multifactorial, is not hitherto established. This study is aimed to determine the association of past hantavirus infection and leptospirosis with the occurrence of CKDu. A cohort (n = 179) of known CKDu patients living in high-CKDu prevalent areas of Anuradhapura district of Sri Lanka was compared with a group of 49 healthy, sex-matched younger blood relatives of CKDu patients (control-1) and another 48 healthy, age, and sex-matched individuals living in low-CKDu prevalent area (control-2) of the same district where same life style and climate conditions prevail. Fifty out of 179 (27.9%) CKDu patients, 16/49 (32.7%) of control-1 and 7/48 (14.6%) of control-2 were found positive for IgG antibodies to Puumala, Hantaan or both strains of hantaviruses. Hantaan strain specificity was found to be predominant in all study groups. Hantavirus IgG sero-prevalence of healthy individuals living in low-CKDu prevalent area was significantly lower compared to CKDu patients and healthy younger blood relatives living in high-CKDu prevalent areas (p = 0.03). Past hantavirus infection possesses a significant risk for the occurrence of CKDu (OR = 4.5; 95% CI-3.1-5.4, p = 0.02). In contrast, IgG seroprevalence to hantaviruses was not significantly different in CKDu patients and healthy younger blood relatives living in high-CKDu prevalent areas indicating past hantavirus infection has no association with the occurrence of CKDu or possibly, younger relatives may develop CKDu in subsequent years. Seroprevalence to leptospirosis showed no significant difference between CKDu patients and healthy controls.
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Affiliation(s)
- N P Sunil-Chandra
- Department of Medical Microbiology, Faculty of Medicine, University of Kelaniya, Kelaniya, Sri Lanka
| | - J A A S Jayaweera
- Faculty of Medicine & Allied Sciences, Rajarata University of Sri Lanka, Anuradhapura, Sri Lanka
| | - W Kumbukgolla
- Faculty of Medicine & Allied Sciences, Rajarata University of Sri Lanka, Anuradhapura, Sri Lanka
| | - M V M L Jayasundara
- Department of Medical Microbiology, Faculty of Medicine, University of Kelaniya, Kelaniya, Sri Lanka
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197
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Dheerasekara K, Sumathipala S, Muthugala R. Hantavirus Infections-Treatment and Prevention. CURRENT TREATMENT OPTIONS IN INFECTIOUS DISEASES 2020; 12:410-421. [PMID: 33144850 PMCID: PMC7594967 DOI: 10.1007/s40506-020-00236-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/20/2020] [Indexed: 12/18/2022]
Abstract
Purpose of review Hantavirus infection is an emerging zoonosis and there are two main clinical presentations, hemorrhagic fever with renal syndrome (HFRS) and Hantavirus pulmonary syndrome (HPS). Although Hantavirus infections have a worldwide distribution with a high mortality rate, a safe and effective vaccine or an antiviral drug against the Hantavirus disease is yet to be available. This review summarizes all the efforts undertaken to develop medical countermeasures in vitro, in vivo, and human clinical trials against Hantavirus infections. Recent findings Multiple antivirals are shown to be effective with limited evidence and recent studies on immunotherapy were not very conclusive. There are multiple vaccine candidates with evidence of conferring long protective immunity against Hantaviruses. Some of these had been already trialed on humans. Summary At present, severe HPS or HFRS case management is purely based on supportive treatments, often in an intensive care unit. Rodent control and public health education and promotion play a major role in preventing Hantavirus infection.
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Affiliation(s)
| | - Saranga Sumathipala
- Department of Virology, Teaching Hospital Anuradhapura, Anuradhapura, Sri Lanka
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198
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Abstract
Hantavirus infection is a global health challenge, causing widespread public concern. In recent years, cases of hantavirus infection in pregnant women have been reported in many countries. The infected pregnant women and their fetuses appear to have more severe clinical symptoms and worse clinical outcomes. Hence, to study the prevalence of hantavirus infection in pregnant women, this study will focus on the epidemiological distribution of the virus, different virus species penetrating the placental barrier, and factors affecting the incidence and clinical outcome of the infection in pregnant women and their fetuses. In addition, this review will also discuss the diagnostic tools and treatments for pregnant patients and provide an overview of the relevant future research.
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199
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Lee GY, Kim WK, Park K, Lee SH, Hwang J, No JS, Cho S, Lee D, Song DH, Gu SH, Park MS, Jeong ST, Kim YS, Song JW. Phylogeographic diversity and hybrid zone of Hantaan orthohantavirus collected in Gangwon Province, Republic of Korea. PLoS Negl Trop Dis 2020; 14:e0008714. [PMID: 33035222 PMCID: PMC7588125 DOI: 10.1371/journal.pntd.0008714] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 10/26/2020] [Accepted: 08/14/2020] [Indexed: 01/03/2023] Open
Abstract
Background Hantaan orthohantavirus (Hantaan virus, HTNV), harbored by Apodemus agrarius (the striped field mouse), causes hemorrhagic fever with renal syndrome (HFRS) in humans. Viral genome-based surveillance at new expansion sites to identify HFRS risks plays a critical role in tracking the infection source of orthohantavirus outbreak. In the Republic of Korea (ROK), most studies demonstrated the serological prevalence and genetic diversity of orthohantaviruses collected from HFRS patients or rodents in Gyeonggi Province. Gangwon Province is a HFRS-endemic area with a high incidence of patients and prevalence of infected rodents, ROK. However, the continued epidemiology and surveillance of orthohantavirus remain to be investigated. Methodology/Principal findings Whole-genome sequencing of HTNV was accomplished in small mammals collected in Gangwon Province during 2015–2018 by multiplex PCR-based next-generation sequencing. To elucidate the geographic distribution and molecular diversity of viruses, we conducted phylogenetic analyses of HTNV tripartite genomes. We inferred the hybrid zone using cline analysis to estimate the geographic contact between two different HTNV lineages in the ROK. The graph incompatibility based reassortment finder performed reassortment analysis. A total of 12 HTNV genome sequences were completely obtained from A. agrarius newly collected in Gangwon Province. The phylogenetic and cline analyses demonstrated the genetic diversity and hybrid zone of HTNV in the ROK. Genetic exchange analysis suggested the possibility of reassortments in Cheorwon-gun, a highly HFRS-endemic area. Conclusions/Significance The prevalence and distribution of HTNV in HFRS-endemic areas of Gangwon Province enhanced the phylogeographic map for orthohantavirus outbreak monitoring in ROK. This study revealed the hybrid zone reflecting the genetic diversity and evolutionary dynamics of HTNV circulating in Gangwon Province. The results arise awareness of rodent-borne orthohantavirus diseases for physicians in the endemic area of ROK. The genetic and molecular epidemiological studies on small mammals derived from hemorrhagic fever with renal syndrome (HFRS)-endemic areas have consistently conducted for the public health surveillance and mitigation of orthohantavirus outbreak in the Republic of Korea (ROK). Implementing viral genome-based surveillance at new expansion sites that may identify HFRS risks is critical for tracking the location of orthohantavirus infections and diagnosing HFRS. In the present study, whole-genome sequences of Hantaan virus (HTNV) from small mammals in Gangwon Province were recovered using multiplex PCR-based next-generation sequencing during 2015–2018. In HFRS-endemic regions including Cheorwon-gun, Chuncheon-si, and Hwacheon-gun, additional HTNV genome sequences contribute to establish a high-resolution phylogeographic map for tracking emerging orthohantavirus-induced diseases. The cline analysis revealed a remarkable hybrid zone by showing spatial contact regions of HTNV at two sites (Cheorwon-gun and Hwacheon-gun) and the spatial separation and sequence divergence across genome segments of HTNV in Gangwon Province. These results demonstrate the genetic diversity and hybrid zone of HTNV circulating in Gangwon Province. These findings increase an awareness raising about HFRS in the endemic area of ROK.
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Affiliation(s)
- Geum-Young Lee
- Department of Microbiology, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Won-Keun Kim
- Department of Microbiology, College of Medicine, Hallym University, Chuncheon, Republic of Korea
- Institute of Medical Science, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Kyungmin Park
- Department of Microbiology, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Seung-Ho Lee
- Department of Microbiology, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Jusun Hwang
- Wildlife Ecology & Genomics Laboratory, College of Forest & Environmental Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Jin Sun No
- Department of Microbiology, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Seungchan Cho
- Department of Microbiology, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Daesang Lee
- 4th R&D Institute, Agency for Defense Development, Daejeon, Republic of Korea
| | - Dong-Hyun Song
- 4th R&D Institute, Agency for Defense Development, Daejeon, Republic of Korea
| | - Se Hun Gu
- 4th R&D Institute, Agency for Defense Development, Daejeon, Republic of Korea
| | - Man-Seong Park
- Department of Microbiology, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Seong Tae Jeong
- 4th R&D Institute, Agency for Defense Development, Daejeon, Republic of Korea
| | - Young-Su Kim
- Infectious Disease Research Department, Gangwon Institute of Health and Environment, Chuncheon, Republic of Korea
| | - Jin-Won Song
- Department of Microbiology, College of Medicine, Korea University, Seoul, Republic of Korea
- * E-mail:
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200
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Grzybek M, Tołkacz K, Sironen T, Mäki S, Alsarraf M, Behnke-Borowczyk J, Biernat B, Nowicka J, Vaheri A, Henttonen H, Behnke JM, Bajer A. Zoonotic Viruses in Three Species of Voles from Poland. Animals (Basel) 2020; 10:ani10101820. [PMID: 33036253 PMCID: PMC7599905 DOI: 10.3390/ani10101820] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/23/2020] [Accepted: 09/28/2020] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Wild rodents constitute a significant threat to public health. We tested 77 voles from northeastern Poland for the presence of antibodies to hantaviruses, arenaviruses and cowpox viruses. We report 18.2% overall seroprevalence of zoonotic viruses. Our results contribute to knowledge about the role of Polish voles as possible reservoirs of viral infections. Abstract Rodents are known to be reservoir hosts for a plethora of zoonotic viruses and therefore play a significant role in the dissemination of these pathogens. We trapped three vole species (Microtus arvalis, Alexandromys oeconomus and Microtus agrestis) in northeastern Poland, all of which are widely distributed species in Europe. Using immunofluorescence assays, we assessed serum samples for the presence of antibodies to hantaviruses, arenaviruses and cowpox viruses (CPXV). We detected antibodies against CPXV and Puumala hantavirus (PUUV), the overall seroprevalence of combined viral infections being 18.2% [10.5–29.3] and mostly attributed to CPXV. We detected only one PUUV/TULV cross-reaction in Microtus arvalis (1.3% [0.1–7.9]), but found similar levels of antibodies against CPXV in all three vole species. There were no significant differences in seroprevalence of CPXV among host species and age categories, nor between the sexes. These results contribute to our understanding of the distribution and abundance of CPXV in voles in Europe, and confirm that CPXV circulates also in Microtus and Alexandromys voles in northeastern Poland.
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Affiliation(s)
- Maciej Grzybek
- Department of Tropical Parasitology, Institute of Maritime and Tropical Medicine, Medical University of Gdansk, Powstania Styczniowego 9B, 81-519 Gdynia, Poland; (B.B.); (J.N.)
- Correspondence: ; Tel.: +48-58-3491941
| | - Katarzyna Tołkacz
- Department of Eco-Epidemiology for Parasitic Diseases, Faculty of Biology, University of Warsaw, 1 Miecznikowa Str, 02-096 Warsaw, Poland; (K.T.); (M.A.); (A.B.)
- Department of Antarctic Biology, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, 5A Pawińskiego Str, 02-106 Warsaw, Poland
| | - Tarja Sironen
- Department of Virology, University of Helsinki, Haartmaninkatu 3, 00014 Helsinki, Finland; (T.S.); (S.M.); (A.V.)
| | - Sanna Mäki
- Department of Virology, University of Helsinki, Haartmaninkatu 3, 00014 Helsinki, Finland; (T.S.); (S.M.); (A.V.)
| | - Mohammed Alsarraf
- Department of Eco-Epidemiology for Parasitic Diseases, Faculty of Biology, University of Warsaw, 1 Miecznikowa Str, 02-096 Warsaw, Poland; (K.T.); (M.A.); (A.B.)
| | - Jolanta Behnke-Borowczyk
- Department of Forest Pathology, Poznan University of Life Sciences, Wojska Polskiego 71c, 60-625 Poznan, Poland;
| | - Beata Biernat
- Department of Tropical Parasitology, Institute of Maritime and Tropical Medicine, Medical University of Gdansk, Powstania Styczniowego 9B, 81-519 Gdynia, Poland; (B.B.); (J.N.)
| | - Joanna Nowicka
- Department of Tropical Parasitology, Institute of Maritime and Tropical Medicine, Medical University of Gdansk, Powstania Styczniowego 9B, 81-519 Gdynia, Poland; (B.B.); (J.N.)
| | - Antti Vaheri
- Department of Virology, University of Helsinki, Haartmaninkatu 3, 00014 Helsinki, Finland; (T.S.); (S.M.); (A.V.)
| | - Heikki Henttonen
- Natural Resources Institute Finland, Latokartanonkaari 9, 00790 Helsinki, Finland;
| | - Jerzy M. Behnke
- School of Life Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UK;
| | - Anna Bajer
- Department of Eco-Epidemiology for Parasitic Diseases, Faculty of Biology, University of Warsaw, 1 Miecznikowa Str, 02-096 Warsaw, Poland; (K.T.); (M.A.); (A.B.)
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