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Carpio KL, Thompson JK, Widen SG, Smith JK, Juelich TL, Clements DE, Freiberg AN, Barrett ADT. Differences in Genetic Diversity of Mammalian Tick-Borne Flaviviruses. Viruses 2023; 15:281. [PMID: 36851495 PMCID: PMC9959157 DOI: 10.3390/v15020281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 01/09/2023] [Accepted: 01/12/2023] [Indexed: 01/20/2023] Open
Abstract
The genetic diversities of mammalian tick-borne flaviviruses are poorly understood. We used next-generation sequencing (NGS) to deep sequence different viruses and strains belonging to this group of flaviviruses, including Central European tick-borne encephalitis virus (TBEV-Eur), Far Eastern TBEV (TBEV-FE), Langat (LGTV), Powassan (POWV), Deer Tick (DTV), Kyasanur Forest Disease (KFDV), Alkhurma hemorrhagic fever (AHFV), and Omsk hemorrhagic fever (OHFV) viruses. DTV, AHFV, and KFDV had the lowest genetic diversity, while POWV strains LEIV-5530 and LB, OHFV, TBEV-Eur, and TBEV-FE had higher genetic diversities. These findings are compatible with the phylogenetic relationships between the viruses. For DTV and POWV, the amount of genetic diversity could be explained by the number of tick vector species and amplification hosts each virus can occupy, with low diversity DTV having a more limited vector and host pool, while POWV with higher genetic diversities has been isolated from different tick species and mammals. It is speculated that high genetic diversity may contribute to the survival of the virus as it encounters these different environments.
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Affiliation(s)
- Kassandra L. Carpio
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Jill K. Thompson
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Steven G. Widen
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Jennifer K. Smith
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Terry L. Juelich
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | | | - Alexander N. Freiberg
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA
- Sealy Institute for Vaccine Sciences, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Alan D. T. Barrett
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA
- Sealy Institute for Vaccine Sciences, University of Texas Medical Branch, Galveston, TX 77555, USA
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Abdulhaq AA, Hershan AA, Karunamoorthi K, Al-Mekhlafi HM. Human Alkhumra hemorrhagic Fever: Emergence, history and epidemiological and clinical profiles. Saudi J Biol Sci 2022; 29:1900-1910. [PMID: 35280532 PMCID: PMC8913346 DOI: 10.1016/j.sjbs.2021.10.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 10/03/2021] [Accepted: 10/14/2021] [Indexed: 11/23/2022] Open
Abstract
Alkhumra hemorrhagic fever (AHF) is a severe, often fatal hemorrhagic disease in humans. It is caused by Alkhumra hemorrhagic fever virus (AHFV), a newly described flavivirus first isolated in 1995 in Alkhumra district, south of Jeddah City, Saudi Arabia. It is transmitted from infected livestock animals to humans by direct contact with infected animals or by tick bites. In the recent past, the incidence of AHF has increased, with a total of 604 confirmed cases have been reported in Saudi Arabia between 1995 and 2020. Yet, no specific treatment or control strategies have been developed and implemented against this infection. Hence, the likelihood of increased prevalence or the occurrence of outbreaks is high, particularly in the absence of appropriate prevention and control strategies. This narrative review presents an overview of the current knowledge and future concerns about AHF globally.
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Key Words
- AHF, Alkhumra hemorrhagic fever
- AHFV, Alkhumra hemorrhagic fever virus
- Alkhumra hemorrhagic fever virus
- CCHFV, Crimean-Congo Hemorrhagic fever virus
- CFV, chikungunya fever virus
- DENV, dengue fever virus
- Flaviviruses
- ICTV, International Committee on Taxonomy of Viruses
- Infectious diseases
- KFDV, Kyasanur Forest disease virus
- OHFV, Omsk hemorrhagic fever virus
- RVFV, Rift Valley fever virus
- Saudi Arabia
- YFV, yellow fever virus
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Affiliation(s)
- Ahmed A Abdulhaq
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Jazan University, Jazan, Kingdom of Saudi Arabia.,Deanship of Scientific Research, Jazan University, Jazan, Kingdom of Saudi Arabia.,Vector-Borne Diseases Research Group, Jazan University, Jazan, Kingdom of Saudi Arabia
| | - Almonther A Hershan
- Department of Medical Microbiology and Parasitology, Faculty of Medicine, University of Jeddah, Jeddah, Kingdom of Saudi Arabia.,Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, University of Jeddah, Jeddah, Kingdom of Saudi Arabia
| | - Kaliyaperumal Karunamoorthi
- Vector-Borne Diseases Research Group, Jazan University, Jazan, Kingdom of Saudi Arabia.,Department of Epidemiology, Faculty of Public Health and Tropical Medicine, Jazan University, Jazan, Kingdom of Saudi Arabia
| | - Hesham M Al-Mekhlafi
- Vector-Borne Diseases Research Group, Jazan University, Jazan, Kingdom of Saudi Arabia.,Medical Research Center, Jazan University, Jazan, Kingdom of Saudi Arabia.,Department of Parasitology, Faculty of Medicine and Health Sciences, Sana'a University, Sana'a, Yemen
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3
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Bhatia B, Meade-White K, Haddock E, Feldmann F, Marzi A, Feldmann H. A live-attenuated viral vector vaccine protects mice against lethal challenge with Kyasanur Forest disease virus. NPJ Vaccines 2021; 6:152. [PMID: 34907224 PMCID: PMC8671490 DOI: 10.1038/s41541-021-00416-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 11/18/2021] [Indexed: 12/02/2022] Open
Abstract
Kyasanur Forest disease virus (KFDV) is a tick-borne flavivirus endemic in India known to cause severe hemorrhagic and encephalitic disease in humans. In recent years, KFDV has spread beyond its original endemic zone raising public health concerns. Currently, there is no treatment available for KFDV but a vaccine with limited efficacy is used in India. Here, we generated two new KFDV vaccine candidates based on the vesicular stomatitis virus (VSV) platform. We chose the VSV-Ebola virus (VSV-EBOV) vector either with the full-length or a truncated EBOV glycoprotein as the vehicle to express the precursor membrane (prM) and envelope (E) proteins of KFDV (VSV-KFDV). For efficacy testing, we established a mouse disease model by comparing KFDV infections in three immunocompetent mouse strains (BALB/c, C57Bl/6, and CD1). Both vaccine vectors provided promising protection against lethal KFDV challenge in the BALB/c model following prime-only prime-boost and immunizations. Only prime-boost immunization with VSV-KFDV expressing full-length EBOV GP resulted in uniform protection. Hyperimmune serum derived from prime-boost immunized mice protected naïve BALB/c mice from lethal KFDV challenge indicating the importance of antibodies for protection. The new VSV-KFDV vectors are promising vaccine candidates to combat an emerging, neglected public health problem in a densely populated part of the world.
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Affiliation(s)
- Bharti Bhatia
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Kimberly Meade-White
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Elaine Haddock
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Friederike Feldmann
- Rocky Mountain Veterinary Branch, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Andrea Marzi
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Heinz Feldmann
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA.
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4
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Broeckel RM, Feldmann F, McNally KL, Chiramel AI, Sturdevant GL, Leung JM, Hanley PW, Lovaglio J, Rosenke R, Scott DP, Saturday G, Bouamr F, Rasmussen AL, Robertson SJ, Best SM. A pigtailed macaque model of Kyasanur Forest disease virus and Alkhurma hemorrhagic disease virus pathogenesis. PLoS Pathog 2021; 17:e1009678. [PMID: 34855915 PMCID: PMC8638978 DOI: 10.1371/journal.ppat.1009678] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 10/15/2021] [Indexed: 11/18/2022] Open
Abstract
Kyasanur Forest disease virus (KFDV) and the closely related Alkhurma hemorrhagic disease virus (AHFV) are emerging flaviviruses that cause severe viral hemorrhagic fevers in humans. Increasing geographical expansion and case numbers, particularly of KFDV in southwest India, class these viruses as a public health threat. Viral pathogenesis is not well understood and additional vaccines and antivirals are needed to effectively counter the impact of these viruses. However, current animal models of KFDV pathogenesis do not accurately reproduce viral tissue tropism or clinical outcomes observed in humans. Here, we show that pigtailed macaques (Macaca nemestrina) infected with KFDV or AHFV develop viremia that peaks 2 to 4 days following inoculation. Over the course of infection, animals developed lymphocytopenia, thrombocytopenia, and elevated liver enzymes. Infected animals exhibited hallmark signs of human disease characterized by a flushed appearance, piloerection, dehydration, loss of appetite, weakness, and hemorrhagic signs including epistaxis. Virus was commonly present in the gastrointestinal tract, consistent with human disease caused by KFDV and AHFV where gastrointestinal symptoms (hemorrhage, vomiting, diarrhea) are common. Importantly, RNAseq of whole blood revealed that KFDV downregulated gene expression of key clotting factors that was not observed during AHFV infection, consistent with increased severity of KFDV disease observed in this model. This work characterizes a nonhuman primate model for KFDV and AHFV that closely resembles human disease for further utilization in understanding host immunity and development of antiviral countermeasures.
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MESH Headings
- Animals
- Chlorocebus aethiops
- Cytokines/blood
- Disease Models, Animal
- Encephalitis Viruses, Tick-Borne/genetics
- Encephalitis Viruses, Tick-Borne/immunology
- Encephalitis Viruses, Tick-Borne/pathogenicity
- Encephalitis, Tick-Borne/immunology
- Encephalitis, Tick-Borne/pathology
- Encephalitis, Tick-Borne/virology
- Female
- HEK293 Cells
- Hemorrhagic Fevers, Viral/immunology
- Hemorrhagic Fevers, Viral/pathology
- Hemorrhagic Fevers, Viral/virology
- Humans
- Lymph Nodes/virology
- Macaca nemestrina
- Vero Cells
- Viremia
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Affiliation(s)
- Rebecca M. Broeckel
- Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Friederike Feldmann
- Rocky Mountain Veterinary Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Kristin L. McNally
- Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Abhilash I. Chiramel
- Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Gail L. Sturdevant
- Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Jacqueline M. Leung
- Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Patrick W. Hanley
- Rocky Mountain Veterinary Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Jamie Lovaglio
- Rocky Mountain Veterinary Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Rebecca Rosenke
- Rocky Mountain Veterinary Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Dana P. Scott
- Rocky Mountain Veterinary Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Greg Saturday
- Rocky Mountain Veterinary Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Fadila Bouamr
- Laboratory of Molecular Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Angela L. Rasmussen
- Vaccine and Infectious Disease Organization, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
- Center for Global Health Science and Security, Georgetown University, Washington, District of Columbia, United States of America
| | - Shelly J. Robertson
- Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
| | - Sonja M. Best
- Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America
- * E-mail:
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Bhatia B, Haddock E, Shaia C, Rosenke R, Meade-White K, Griffin AJ, Marzi A, Feldmann H. Alkhurma haemorrhagic fever virus causes lethal disease in IFNAR -/- mice. Emerg Microbes Infect 2021; 10:1077-1087. [PMID: 34013842 PMCID: PMC8183530 DOI: 10.1080/22221751.2021.1932609] [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] [Indexed: 12/19/2022]
Abstract
Alkhurma haemorrhagic fever virus (AHFV), a tick-borne flavivirus closely related to Kyasanur Forest disease virus, is the causative agent of a severe, sometimes fatal haemorrhagic/encephalitic disease in humans. To date, there are no specific treatments or vaccines available to combat AHFV infections. A challenge for the development of countermeasures is the absence of a reliable AHFV animal disease model for efficacy testing. Here, we used mice lacking the type I interferon (IFN) receptor (IFNAR-/-). AHFV strains Zaki-2 and 2003 both caused uniform lethality in these mice after intraperitoneal injection, but strain 2003 seemed more virulent with a median lethal dose of 0.4 median tissue culture infectious doses (TCID50). Disease manifestation in this animal model was similar to case reports of severe human AHFV infections with early generalized signs leading to haemorrhagic and neurologic complications. AHFV infection resulted in early high viremia followed by high viral loads (<108 TCID50/g tissue) in all analyzed organs. Despite systemic viral replication, virus-induced pathology was mainly found in the spleen, lymph nodes, liver and heart. This uniformly lethal AHFV disease model will be instrumental for pathogenesis studies and countermeasure development against this neglected zoonotic pathogen.
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Affiliation(s)
- Bharti Bhatia
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Elaine Haddock
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Carl Shaia
- Rocky Mountain Veterinary Branch, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Rebecca Rosenke
- Rocky Mountain Veterinary Branch, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Kimberly Meade-White
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Amanda J Griffin
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Andrea Marzi
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Heinz Feldmann
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
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6
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Abstract
OBJECTIVES This review article summarizes what has been published on Alkhumra hemorrhagic fever virus (AHFV), a novel flavivirus that was discovered in Saudi Arabia in 1995. METHODS PubMed was used to search for studies published from January 1995 to June 2019 using the key words Alkhumra virus, Alkhurma virus, novel flavivirus, and tick-borne encephalitis virus. Additionally, records of the Saudi Ministry of Health were reviewed. RESULTS Thirty-two articles on AHFV were identified. Acute febrile flu-like illness, hepatitis, hemorrhagic manifestations, and, less commonly, encephalitis are the main clinical features. The virus seems to be transmitted from livestock animals to humans by direct contact with these animals or their raw meat, or perhaps by tick or mosquito bites. The ability of ticks and mosquitoes to serve as vectors for AHFV needs to be confirmed by biological studies. The exact role of animals such as sheep, goats, camels, and other mammals in the transmission and maintenance of the virus remains to be elucidated. Preventive measures require an interdisciplinary approach involving the human and veterinary health sectors, the municipality, the ministry of agriculture, the vector control sector, and academic and research institutes. CONCLUSIONS AHFV has been well characterized; nevertheless, some aspects remain to be elucidated.
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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: 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: 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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Kyasanur Forest Disease and Alkhurma Hemorrhagic Fever Virus-Two Neglected Zoonotic Pathogens. Microorganisms 2020; 8:microorganisms8091406. [PMID: 32932653 PMCID: PMC7564883 DOI: 10.3390/microorganisms8091406] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/04/2020] [Accepted: 09/10/2020] [Indexed: 11/17/2022] Open
Abstract
Kyasanur Forest disease virus (KFDV) and Alkhurma hemorrhagic fever virus (AHFV) are tick-borne flaviviruses that cause life-threatening hemorrhagic fever in humans with case fatality rates of 3-5% for KFDV and 1-20% for AHFV, respectively. Both viruses are biosafety level 4 pathogens due to the severity of disease they cause and the lack of effective countermeasures. KFDV was discovered in India and is restricted to parts of the Indian subcontinent, whereas AHFV has been found in Saudi Arabia and Egypt. In recent years, both viruses have spread beyond their original endemic zones and the potential of AHFV to spread through ticks on migratory birds is a public health concern. While there is a vaccine with limited efficacy for KFDV used in India, there is no vaccine for AHFV nor are there any therapeutic concepts to combat infections with these viruses. In this review, we summarize the current knowledge about pathogenesis, vector distribution, virus spread, and infection control. We aim to bring attention to the potential public health threats posed by KFDV and AHFV and highlight the urgent need for the development of effective countermeasures.
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Patil DR, Yadav PD, Shete A, Chaubal G, Mohandas S, Sahay RR, Jain R, Mote C, Kumar S, Kaushal H, Kore P, Patil S, Majumdar T, Fulari S, Suryawanshi A, Kadam M, Pardeshi PG, Lakra R, Sarkale P, Mourya DT. Study of Kyasanur forest disease viremia, antibody kinetics, and virus infection in target organs of Macaca radiata. Sci Rep 2020; 10:12561. [PMID: 32724103 PMCID: PMC7387489 DOI: 10.1038/s41598-020-67599-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 06/08/2020] [Indexed: 12/16/2022] Open
Abstract
The present manuscript deals with experimental infections of bonnet macaques (Macaca radiata) to study disease progression for better insights into the Kyasanur Forest Disease (KFD) pathogenesis and transmission. Experimentally, 10 monkeys were inoculated with KFD virus (KFDV) (high or low dose) and were regularly monitored and sampled for various body fluids and tissues at preset time points. We found that only 2 out of the 10 animals showed marked clinical signs becoming moribund, both in the low dose group, even though viremia, virus shedding in the secretions and excretions were evident in all inoculated monkeys. Anti-KFDV immunoglobulin (Ig)M antibody response was observed around a week after inoculation and anti-KFDV IgG antibody response after two weeks. Anaemia, leucopenia, thrombocytopenia, monocytosis, increase in average clotting time, and reduction in the serum protein levels were evident. The virus could be re-isolated from the skin during the viremic period. The persistence of viral RNA in the gastrointestinal tract and lymph nodes was seen up to 53 and 81 days respectively. Neuro-invasion was observed only in moribund macaques. Re-challenge with the virus after 21 days of initial inoculation in a monkey did not result in virus shedding or immune response boosting.
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Affiliation(s)
- Dilip R Patil
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Pragya D Yadav
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Anita Shete
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Gouri Chaubal
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Sreelekshmy Mohandas
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Rima R Sahay
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Rajlaxmi Jain
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Chandrashekhar Mote
- Department of Veterinary Pathology, Krantisinh Nana Patil College of Veterinary Science, Shirwal, Maharashtra, India
| | - Sandeep Kumar
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Himanshu Kaushal
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Pravin Kore
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Savita Patil
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Triparna Majumdar
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Siddharam Fulari
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Annasaheb Suryawanshi
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Manoj Kadam
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Prachi G Pardeshi
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Rajen Lakra
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Prasad Sarkale
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India
| | - Devendra T Mourya
- Indian Council of Medical Research-National Institute of Virology, Pune, Maharashtra, India.
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Nikiforuk AM, Tierny K, Cutts TA, Kobasa DK, Theriault SS, Cook BWM. Kyasanur Forest disease virus non-mouse animal models: a pilot study. BMC Res Notes 2020; 13:291. [PMID: 32539799 PMCID: PMC7296627 DOI: 10.1186/s13104-020-05137-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 06/10/2020] [Indexed: 11/10/2022] Open
Abstract
Objectives Mouse models have delivered variable recapitulation of Kyasanur Forest disease (KFD) pathology and consistently demonstrated neurological involvement which may be a limited feature of human disease. With the purpose of more accurately modelling human disease progression we infected several small-mammalian models: guinea pigs, hamsters and ferrets with a titered infectious dose of Kyasanur Forest disease virus (KFDV). Clinical indicators of disease severity were observed for seventeen days, on day eighteen a visual post-mortem analysis of visceral organs was conducted. Viral load in selected tissues was measured to infer disease signs and the establishment of viral replication. Data description Daily monitoring did not reveal any observable signs of illness; weight loss was minimal across species and gross pathology did not indicate severe viral infection. Tissue specific tropism and establishment of viral infection was monitored by quantitative real-time polymerase chain reaction (qRT-PCR). No viral replication was detected in ferrets (n = 0/3), but was present in the spleen of guinea pigs (n = 3/3) and the brain of hamsters (n = 3/3). Low levels of viral RNA were detected in multiple hamster tissues (kidney, liver, lung and spleen) suggesting the possibility of viral tropism and possible adaptation to the host. No serological tests were performed.
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Affiliation(s)
- A M Nikiforuk
- Applied Biosafety Research Program, National Microbiology Laboratory, Public Health Agency of Canada, 1015 Arlington Street, Winnipeg, MB, R3E 3R2, Canada
| | - K Tierny
- Special Pathogens Program, National Microbiology Laboratory, Public Health Agency of Canada, 1015 Arlington Street, Winnipeg, MB, R3E 3R2, Canada
| | - T A Cutts
- Applied Biosafety Research Program, National Microbiology Laboratory, Public Health Agency of Canada, 1015 Arlington Street, Winnipeg, MB, R3E 3R2, Canada
| | - D K Kobasa
- Special Pathogens Program, National Microbiology Laboratory, Public Health Agency of Canada, 1015 Arlington Street, Winnipeg, MB, R3E 3R2, Canada.,Department of Medical Microbiology, and Infectious Diseases, The University of Manitoba, 745 Bannatyne Avenue, Winnipeg, MB, R3E 0J9, Canada
| | - S S Theriault
- Applied Biosafety Research Program, National Microbiology Laboratory, Public Health Agency of Canada, 1015 Arlington Street, Winnipeg, MB, R3E 3R2, Canada.,Department of Microbiology, The University of Manitoba, 213 Buller Building, Winnipeg, MB, R3T 2N2, Canada
| | - B W M Cook
- Applied Biosafety Research Program, National Microbiology Laboratory, Public Health Agency of Canada, 1015 Arlington Street, Winnipeg, MB, R3E 3R2, Canada. .,Cytophage Technologies Inc, 26 Henlow Bay, Winnipeg, MB, R3Y 1G4, Canada.
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N S, Hewson R, Afrough B, Bewley K, Arunkumar G. Development of a quantitative real-time RT-PCR assay that differentiates between Kyasanur Forest disease virus and Alkhurma hemorrhagic fever virus. Ticks Tick Borne Dis 2020; 11:101381. [PMID: 32009000 DOI: 10.1016/j.ttbdis.2020.101381] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 01/11/2020] [Accepted: 01/23/2020] [Indexed: 11/17/2022]
Abstract
Kyasanur Forest disease virus (KFDV) and Alkhurma hemorrhagic fever virus (AHFV) are enveloped, positive-stranded RNA viruses of clinical importance with complex enzootic life cycles involving hematophagous ticks which feed on small and large mammals. Humans and monkeys are dead-end hosts for these viruses. Recent trends in epidemiological data suggest both virus incidences are steadily increasing and their geographical distribution expanding out of previously known circulation regions. For the detection and discrimination of these two closely related flaviviruses, we have developed quantitative real-time RT-PCR assays with 100 % sensitivity and 100 % specificity for KFDV, 100 % sensitivity and 99.4 % specificity for AHFV as determined using 550 clinical samples collected between 2015-2018 from Western Ghats region of India. This rapid and sensitive assay will enable researchers to accurately diagnose the presence of the virus during viremia in human and animal blood samples, and also from tick specimens. Incorporation of these new tests into a routine diagnosis will help in the diagnosis of KFDV as well as AHFV in the endemic areas and also would provide an early warning of the spread of this virus to newer regions with similar epidemiology.
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Affiliation(s)
- Sudheesh N
- Manipal Institute of Virology, Manipal Academy of Higher Education (Deemed to be University), Manipal, Karnataka, India
| | - Roger Hewson
- National Infection Service, Public Health England, Porton Down, Salisbury, Wiltshire, United Kingdom
| | - Babak Afrough
- National Infection Service, Public Health England, Porton Down, Salisbury, Wiltshire, United Kingdom
| | - Kevin Bewley
- National Infection Service, Public Health England, Porton Down, Salisbury, Wiltshire, United Kingdom
| | - Govindakarnavar Arunkumar
- Manipal Institute of Virology, Manipal Academy of Higher Education (Deemed to be University), Manipal, Karnataka, India.
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Al-Tayib OA. An Overview of the Most Significant Zoonotic Viral Pathogens Transmitted from Animal to Human in Saudi Arabia. Pathogens 2019; 8:E25. [PMID: 30813309 PMCID: PMC6471281 DOI: 10.3390/pathogens8010025] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 02/12/2019] [Accepted: 02/13/2019] [Indexed: 02/01/2023] Open
Abstract
Currently, there has been an increasing socioeconomic impact of zoonotic pathogens transmitted from animals to humans worldwide. Recently, in the Arabian Peninsula, including in Saudi Arabia, epidemiological data indicated an actual increase in the number of emerging and/or reemerging cases of several viral zoonotic diseases. Data presented in this review are very relevant because Saudi Arabia is considered the largest country in the Peninsula. We believe that zoonotic pathogens in Saudi Arabia remain an important public health problem; however, more than 10 million Muslim pilgrims from around 184 Islamic countries arrive yearly at Makkah for the Hajj season and/or for the Umrah. Therefore, for health reasons, several countries recommend vaccinations for various zoonotic diseases among preventive protocols that should be complied with before traveling to Saudi Arabia. However, there is a shortage of epidemiological data focusing on the emerging and reemerging of zoonotic pathogens transmitted from animal to humans in different densely populated cities and/or localities in Saudi Arabia. Therefore, further efforts might be needed to control the increasing impacts of zoonotic viral disease. Also, there is a need for a high collaboration to enhance the detection and determination of the prevalence, diagnosis, control, and prevention as well as intervention and reduction in outbreaks of these diseases in Saudi Arabia, particularly those from other countries. Persons in the health field including physicians and veterinarians, pet owners, pet store owners, exporters, border guards, and people involved in businesses related to animal products have adopted various preventive strategies. Some of these measures might pave the way to highly successful prevention and control results on the different transmission routes of these viral zoonotic diseases from or to Saudi Arabia. Moreover, the prevention of these viral pathogens depends on socioeconomic impacts, available data, improved diagnosis, and highly effective therapeutics or prophylaxis.
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Affiliation(s)
- Omar A Al-Tayib
- Abdullah Bagshan for Dental and Oral Rehabilitation (DOR), Dental College Research Center, King Saud University, Riyadh 12372, Saudi Arabia.
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Khartoum, Khartoum 11111, Sudan.
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Lindqvist R, Upadhyay A, Överby AK. Tick-Borne Flaviviruses and the Type I Interferon Response. Viruses 2018; 10:E340. [PMID: 29933625 PMCID: PMC6071234 DOI: 10.3390/v10070340] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 06/15/2018] [Accepted: 06/19/2018] [Indexed: 12/13/2022] Open
Abstract
Flaviviruses are globally distributed pathogens causing millions of human infections every year. Flaviviruses are arthropod-borne viruses and are mainly transmitted by either ticks or mosquitoes. Mosquito-borne flaviviruses and their interactions with the innate immune response have been well-studied and reviewed extensively, thus this review will discuss tick-borne flaviviruses and their interactions with the host innate immune response.
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Affiliation(s)
- Richard Lindqvist
- Department of Clinical Microbiology, Virology, Umeå University, SE-90185 Umeå, Sweden.
- Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå University, SE-90187 Umeå, Sweden.
- Umeå Centre for Microbial Research (UCMR), Umeå University, SE-90187 Umeå, Sweden.
| | - Arunkumar Upadhyay
- Department of Clinical Microbiology, Virology, Umeå University, SE-90185 Umeå, Sweden.
- Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå University, SE-90187 Umeå, Sweden.
- Umeå Centre for Microbial Research (UCMR), Umeå University, SE-90187 Umeå, Sweden.
| | - Anna K Överby
- Department of Clinical Microbiology, Virology, Umeå University, SE-90185 Umeå, Sweden.
- Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå University, SE-90187 Umeå, Sweden.
- Umeå Centre for Microbial Research (UCMR), Umeå University, SE-90187 Umeå, Sweden.
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Shah SZ, Jabbar B, Ahmed N, Rehman A, Nasir H, Nadeem S, Jabbar I, Rahman ZU, Azam S. Epidemiology, Pathogenesis, and Control of a Tick-Borne Disease- Kyasanur Forest Disease: Current Status and Future Directions. Front Cell Infect Microbiol 2018; 8:149. [PMID: 29868505 PMCID: PMC5954086 DOI: 10.3389/fcimb.2018.00149] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Accepted: 04/20/2018] [Indexed: 12/17/2022] Open
Abstract
In South Asia, Haemaphysalis spinigera tick transmits Kyasanur Forest Disease Virus (KFDV), a flavivirus that causes severe hemorrhagic fever with neurological manifestations such as mental disturbances, severe headache, tremors, and vision deficits in infected human beings with a fatality rate of 3-10%. The disease was first reported in March 1957 from Kyasanur forest of Karnataka (India) from sick and dying monkeys. Since then, between 400 and 500 humans cases per year have been recorded; monkeys and small mammals are common hosts of this virus. KFDV can cause epizootics with high fatality in primates and is a level-4 virus according to the international biosafety rules. The density of tick vectors in a given year correlates with the incidence of human disease. The virus is a positive strand RNA virus and its genome was discovered to code for one polyprotein that is cleaved post-translationally into 3 structural proteins (Capsid protein, Envelope Glycoprotein M and Envelope Glycoprotein E) and 7 non-structural proteins (NS1, NS2A, NS2B, NS3, NS4A, NS4B, and NS5). KFDV has a high degree of sequence homology with most members of the TBEV serocomplex. Alkhurma virus is a KFDV variant sharing a sequence similarity of 97%. KFDV is classified as a NIAID Category C priority pathogen due to its extreme pathogenicity and lack of US FDA approved vaccines and therapeutics; also, the infectious dose is currently unknown for KFD. In India, formalin-inactivated KFDV vaccine produced in chick embryo fibroblast is being used. Nevertheless, further efforts are required to enhance its long-term efficacy. KFDV remains an understudied virus and there remains a lack of insight into its pathogenesis; moreover, specific treatment to the disease is not available to date. Environmental and climatic factors involved in disseminating Kyasanur Forest Disease are required to be fully explored. There should be a mapping of endemic areas and cross-border veterinary surveillance needs to be developed in high-risk regions. The involvement of both animal and health sector is pivotal for circumscribing the spread of this disease to new areas.
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Affiliation(s)
- Syed Z. Shah
- Center of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Basit Jabbar
- Center of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
- Institute of Biochemistry and Biotechnology, University of the Punjab, Lahore, Pakistan
| | - Nadeem Ahmed
- Center of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Anum Rehman
- Center of Biotechnology and Microbiology, University of Peshawar, Peshawar, Pakistan
| | - Hira Nasir
- Center of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Sarooj Nadeem
- Center of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Iqra Jabbar
- School of Biological Sciences, University of the Punjab, Lahore, Pakistan
| | - Zia ur Rahman
- Center of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Shafiq Azam
- Center of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
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Alkhurma hemorrhagic fever virus. Microbes Infect 2017; 19:305-310. [PMID: 28456648 DOI: 10.1016/j.micinf.2017.04.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 04/15/2017] [Accepted: 04/16/2017] [Indexed: 01/03/2023]
Abstract
Alkhurma hemorrhagic fever virus (AHFV) was first isolated in Jeddah, Saudi Arabia, in the 1990s from the blood of a butcher. Subsequently, the virus was recognized in many patients in Saudi Arabia and rarely from Egypt and Djibouti. In this review, we summarize the current literature on AHFV globally with special focus on Saudi Arabia.
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Basu A, Yadav P, Prasad S, Badole S, Patil D, Kohlapure RM, Mourya DT. An Early Passage Human Isolate of Kyasanur Forest Disease Virus Shows Acute Neuropathology in Experimentally Infected CD-1 Mice. Vector Borne Zoonotic Dis 2016; 16:496-8. [PMID: 27171207 DOI: 10.1089/vbz.2015.1917] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Kyasanur Forest disease virus (KFDV) is a tick-borne Flavivirus that causes a severe illness in humans. Disease spectrum can vary from subclinical infection to fatal cases with hemorrhagic complications. The pathology of KFDV remains incompletely understood. METHODS This study describes the histopathologic and immunohistochemical findings in experimentally infected infant CD-1 mice with an early passage human KFDV isolate. RESULTS Acute histological changes were primarily seen in the brain. The spectrum of changes included gliosis, inflammatory response, necrosis, neural loss, and syncytium formation in mid and hind brain structures. Microscopic lesions observed in the liver were mainly necrosis and vacuolation of hepatocytes and in small intestine, prominent epithelial cell necrosis. KFDV antigens could be stained by a sensitive immunohistochemical labeling in the same organs. CONCLUSIONS Findings from this study are suggestive of neuropathology as the main manifestation of an early passaged human KFDV isolate. Importantly, this suggests that KFDV may be causing primarily a neurologic disease and secondary organ damage could be because of disease pathology per se. The use of primary low passage human isolates and neuropathology profile could also be more apt in developing a challenge model for testing potential antivirals and therapeutic agents.
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Affiliation(s)
- Atanu Basu
- 1 Electron Microscopy & Pathology Group, National Institute of Virology , Pune, India
| | - Pragya Yadav
- 2 BSL4 Laboratory, National Institute of Virology , Pune, India
| | - Sharda Prasad
- 1 Electron Microscopy & Pathology Group, National Institute of Virology , Pune, India
| | - Sachin Badole
- 2 BSL4 Laboratory, National Institute of Virology , Pune, India
| | - Dilip Patil
- 2 BSL4 Laboratory, National Institute of Virology , Pune, India
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