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Yang R, Han P, Han P, Li D, Zhao R, Niu S, Liu K, Li S, Tian WX, Gao GF. Molecular basis of hippopotamus ACE2 binding to SARS-CoV-2. J Virol 2024; 98:e0045124. [PMID: 38591877 PMCID: PMC11092335 DOI: 10.1128/jvi.00451-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 03/18/2024] [Indexed: 04/10/2024] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has a wide range of hosts, including hippopotami, which are semi-aquatic mammals and phylogenetically closely related to Cetacea. In this study, we characterized the binding properties of hippopotamus angiotensin-converting enzyme 2 (hiACE2) to the spike (S) protein receptor binding domains (RBDs) of the SARS-CoV-2 prototype (PT) and variants of concern (VOCs). Furthermore, the cryo-electron microscopy (cryo-EM) structure of the SARS-CoV-2 PT S protein complexed with hiACE2 was resolved. Structural and mutational analyses revealed that L30 and F83, which are specific to hiACE2, played a crucial role in the hiACE2/SARS-CoV-2 RBD interaction. In addition, comparative and structural analysis of ACE2 orthologs suggested that the cetaceans may have the potential to be infected by SARS-CoV-2. These results provide crucial molecular insights into the susceptibility of hippopotami to SARS-CoV-2 and suggest the potential risk of SARS-CoV-2 VOCs spillover and the necessity for surveillance. IMPORTANCE The hippopotami are the first semi-aquatic artiodactyl mammals wherein SARS-CoV-2 infection has been reported. Exploration of the invasion mechanism of SARS-CoV-2 will provide important information for the surveillance of SARS-CoV-2 in hippopotami, as well as other semi-aquatic mammals and cetaceans. Here, we found that hippopotamus ACE2 (hiACE2) could efficiently bind to the RBDs of the SARS-CoV-2 prototype (PT) and variants of concern (VOCs) and facilitate the transduction of SARS-CoV-2 PT and VOCs pseudoviruses into hiACE2-expressing cells. The cryo-EM structure of the SARS-CoV-2 PT S protein complexed with hiACE2 elucidated a few critical residues in the RBD/hiACE2 interface, especially L30 and F83 of hiACE2 which are unique to hiACE2 and contributed to the decreased binding affinity to PT RBD compared to human ACE2. Our work provides insight into cross-species transmission and highlights the necessity for monitoring host jumps and spillover events on SARS-CoV-2 in semi-aquatic/aquatic mammals.
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Affiliation(s)
- Ruirui Yang
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - Pu Han
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - Pengcheng Han
- School of Medicine, Zhongda Hospital, Southeast University, Nanjing, China
| | - Dedong Li
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Runchu Zhao
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, China
| | - Sheng Niu
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China
| | - Kefang Liu
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - Shihua Li
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - Wen-Xia Tian
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China
| | - George Fu Gao
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
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Jahid MJ, Bowman AS, Nolting JM. SARS-CoV-2 Outbreaks on Mink Farms-A Review of Current Knowledge on Virus Infection, Spread, Spillover, and Containment. Viruses 2024; 16:81. [PMID: 38257781 PMCID: PMC10819236 DOI: 10.3390/v16010081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 12/29/2023] [Accepted: 12/31/2023] [Indexed: 01/24/2024] Open
Abstract
Many studies have been conducted to explore outbreaks of SARS-CoV-2 in farmed mink and their intra-/inter-species spread and spillover to provide data to the scientific community, protecting human and animal health. Studies report anthropozoonotic introduction, which was initially documented in April 2020 in the Netherlands, and subsequent inter-/intra-species spread of SARS-CoV-2 in farmed mink, likely due to SARS-CoV-2 host tropism capable of establishing efficient interactions with host ACE2 and the mink hosts' ability to enhance swift viral transmission due to their density, housing status, and occupational contacts. Despite the rigorous prevention and control measures adopted, transmission of the virus within and between animal species was efficient, resulting in the development of mink-associated strains able to jump back and forth among the mink hosts and other animal/human contacts. Current knowledge recognizes the mink as a highly susceptible animal host harboring the virus with or without clinical manifestations, furthering infection transmission as a hidden animal reservoir. A One Health approach is, thus, recommended in SARS-CoV-2 surveillance and monitoring on mink farms and of their susceptible contact animals to identify and better understand these potential animal hosts.
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Affiliation(s)
| | | | - Jacqueline M. Nolting
- Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA; (M.J.J.); (A.S.B.)
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Hansen LG, Larsen LE, Rasmussen TB, Miar Y, Lassuniére R, Jørgensen CS, Ryt-Hansen P. Investigation of the SARS-CoV-2 post-vaccination antibody response in Canadian farmed mink. Vaccine 2023; 41:7387-7394. [PMID: 37932134 DOI: 10.1016/j.vaccine.2023.10.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/28/2023] [Accepted: 10/30/2023] [Indexed: 11/08/2023]
Abstract
Currently, SARS-CoV-2 have been detected in farmed mink in 13 different countries. Due to the high susceptibility and transmissibility among mink, great concerns of mink serving as a reservoir to generate novel variants with unknown virulence and antigenic properties arose. These concerns have consequently resulted in entire mink productions being culled and banned. This study investigates the post-vaccination antibody response in the Canadian farmed mink vaccinated with a commercial Index spike protein-based vaccine, approved for use in cats, and compares the antibody response to that observed post infection in Danish farmed mink. Blood samples were obtained from 50 mink at the Canadian Centre for Fur Animal Research (CCFAR), Dalhousie University (Truro, Canada). The sera were initially analyzed for antibodies by enzyme-linked immunosorbent assay (ELISA), and selected sera was subsequently tested in a virus neutralization tests. The levels of neutralizing antibodies were evaluated for an ancestral D614G strain and a recent circulating SARS-CoV-2 variant of concern (Omicron BA.4). The results revealed that the vaccine induced a strong antibody response in mink by reaching antibody titer levels of up to 1:12800 in the ELISA. Moreover, high levels of neutralizing antibodies were obtained, and despite the great level of genetic differences between the ancestral and Omicron BA.4 strains, the vaccinated mink showed high levels of cross-reacting neutralizing antibodies. Interestingly, the antibody levels towards SARS-CoV-2 in the Canadian vaccinated mink were significantly higher than observed in recently SARS-CoV-2 infected Danish mink and equal to anamnestic responses following re-infection. In conclusion, the vaccine used in the Canadian farmed mink was able to induce a strong and broad-reacting antibody response in mink, which could limit the spread of SARS-CoV-2 in farmed mink and thereby reduce the risk of mink serving as a SARS-CoV-2 reservoir for human infections.
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Affiliation(s)
- Line Gram Hansen
- Dpt. of Veterinary and Animal Sciences, University of Copenhagen, Grønnegårdsvej 2, DK-1870 Frederiksberg C, Denmark.
| | - Lars Erik Larsen
- Dpt. of Veterinary and Animal Sciences, University of Copenhagen, Grønnegårdsvej 2, DK-1870 Frederiksberg C, Denmark.
| | | | - Younes Miar
- Haley Institute of Animal Science and Aquaculture 100-A, Dalhousie University, Faculty of Agriculture, 58 Sipu Awti, Truro, NS, Canada.
| | - Ria Lassuniére
- Statens Serum Institut, Artillerivej 5, 2300 Copenhagen S, Denmark.
| | | | - Pia Ryt-Hansen
- Dpt. of Veterinary and Animal Sciences, University of Copenhagen, Grønnegårdsvej 2, DK-1870 Frederiksberg C, Denmark.
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4
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Mabry ME, Fanelli A, Mavian C, Lorusso A, Manes C, Soltis PS, Capua I. The panzootic potential of SARS-CoV-2. Bioscience 2023; 73:814-829. [PMID: 38125826 PMCID: PMC10728779 DOI: 10.1093/biosci/biad102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/09/2023] [Accepted: 11/06/2023] [Indexed: 12/23/2023] Open
Abstract
Each year, SARS-CoV-2 is infecting an increasingly unprecedented number of species. In the present article, we combine mammalian phylogeny with the genetic characteristics of isolates found in mammals to elaborate on the host-range potential of SARS-CoV-2. Infections in nonhuman mammals mirror those of contemporary viral strains circulating in humans, although, in certain species, extensive viral circulation has led to unique genetic signatures. As in other recent studies, we found that the conservation of the ACE2 receptor cannot be considered the sole major determinant of susceptibility. However, we are able to identify major clades and families as candidates for increased surveillance. On the basis of our findings, we argue that the use of the term panzootic could be a more appropriate term than pandemic to describe the ongoing scenario. This term better captures the magnitude of the SARS-CoV-2 host range and would hopefully inspire inclusive policy actions, including systematic screenings, that could better support the management of this worldwide event.
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Affiliation(s)
- Makenzie E Mabry
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, United States
| | - Angela Fanelli
- Department of Veterinary Medicine, University of Bari, Valenzano, Bari, Italy
| | - Carla Mavian
- Emerging Pathogens Institute and with the Department of Pathology, University of Florida, Gainesville, Florida, United States
| | - Alessio Lorusso
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise G. Caporale, Teramo, Italy
| | - Costanza Manes
- Department of Wildlife Ecology and Conservation and with the One Health Center of Excellence, University of Florida, Gainesville, Florida, United States
| | - Pamela S Soltis
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, United States
| | - Ilaria Capua
- One Health Center of Excellence, University of Florida, Gainesville, Florida, United States
- School of International Advanced Studies, Johns Hopkins University, Bologna, Italy
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5
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Madhusudanan A, Iddon C, Cevik M, Naismith JH, Fitzgerald S. Non-pharmaceutical interventions for COVID-19: a systematic review on environmental control measures. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2023; 381:20230130. [PMID: 37611631 PMCID: PMC10446906 DOI: 10.1098/rsta.2023.0130] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 06/06/2023] [Indexed: 08/25/2023]
Abstract
The purpose of this review was to identify the effectiveness of environmental control (EC) non-pharmaceutical interventions (NPIs) in reducing transmission of SARS-CoV-2 through conducting a systematic review. EC NPIs considered in this review are room ventilation, air filtration/cleaning, room occupancy, surface disinfection, barrier devices, [Formula: see text] monitoring and one-way-systems. Systematic searches of databases from Web of Science, Medline, EMBASE, preprint servers MedRxiv and BioRxiv were conducted in order to identify studies reported between 1 January 2020 and 1 December 2022. All articles reporting on the effectiveness of ventilation, air filtration/cleaning, room occupancy, surface disinfection, barrier devices, [Formula: see text] monitoring and one-way systems in reducing transmission of SARS-CoV-2 were retrieved and screened. In total, 13 971 articles were identified for screening. The initial title and abstract screening identified 1328 articles for full text review. Overall, 19 references provided evidence for the effectiveness of NPIs: 12 reported on ventilation, 4 on air cleaning devices, 5 on surface disinfection, 6 on room occupancy and 1 on screens/barriers. No studies were found that considered the effectiveness of [Formula: see text] monitoring or the implementation of one-way systems. Many of these studies were assessed to have critical risk of bias in at least one domain, largely due to confounding factors that could have affected the measured outcomes. As a result, there is low confidence in the findings. Evidence suggests that EC NPIs of ventilation, air cleaning devices and reduction in room-occupancy may have a role in reducing transmission in certain settings. However, the evidence was usually of low or very low quality and certainty, and hence the level of confidence ascribed to this conclusion is low. Based on the evidence found, it was not possible to draw any specific conclusions regarding the effectiveness of surface disinfection and the use of barrier devices. From these results, we further conclude that community agreed standards for well-designed epidemiological studies with low risk of bias are needed. Implementation of such standards would enable more confident assessment in the future of the effectiveness of EC NPIs in reducing transmission of SARS-CoV-2 and other pathogens in real-world settings. This article is part of the theme issue 'The effectiveness of non-pharmaceutical interventions on the COVID-19 pandemic: the evidence'.
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Affiliation(s)
| | - Christopher Iddon
- Department of Civil, Environmental and Geomatic Engineering, University College London, WC1E 6BT, London, UK
| | - Muge Cevik
- Department of Infection and Global Health, School of Medicine, University of St Andrews, KY16 9TF, St Andrews, UK
| | | | - Shaun Fitzgerald
- Department of Engineering, University of Cambridge, CB2 1PZ, Cambridge, UK
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6
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Žigaitė S, Masiulis M, Bušauskas P, Pilevičienė S, Buitkuvienė J, Paulauskas V, Malakauskas A. Evaluation of SARS-CoV-2 passive surveillance in Lithuanian mink farms, 2020-2021. Front Vet Sci 2023; 10:1181826. [PMID: 37360410 PMCID: PMC10288870 DOI: 10.3389/fvets.2023.1181826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/18/2023] [Indexed: 06/28/2023] Open
Abstract
The newly emerged SARS-CoV-2, causing COVID-19 in humans, is also infecting American mink (Neovison vison), used in fur production. Since 2020, passive surveillance of SARS-CoV-2 in mink farms was implemented in Lithuania. Here, we describe data from a survey of all 57 active Lithuanian mink farms carried out during November-December 2021 to complement passive surveillance in the country. In all 57 mink farms, nasopharyngeal swab samples were collected from dead or live mink and tested by real-time RT-PCR. Dead mink samples were tested in pools of 5, while live mink samples were tested individually. In 19 mink farms, blood serum was collected and tested for antibodies to determine previous exposure to the virus. Environmental samples from 55 farms were also collected and tested in pooled samples by real-time RT-PCR. The present survey has detected 22.81% viral RNA-positive mink farms and a high number of mink farms that were exposed (84.21, 95% CI 67.81-100%) to the virus. The increasing exposure of mink farms to the virus due to growing human COVID-19 cases and limitations of passive surveillance could explain the observed epidemiological situation of SARS-CoV-2 in Lithuanian mink farms, compared to the few positive farms previously detected by passive surveillance. The unexpected widespread exposure of mink farms to SARS-CoV-2 suggests that passive surveillance is ineffective for early detection of SARS-CoV-2 in mink. Further studies are needed to reveal the present status in previously infected mink farms.
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Affiliation(s)
- Silvija Žigaitė
- Veterinary Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Marius Masiulis
- Veterinary Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
- State Food and Veterinary Service, Vilnius, Lithuania
| | | | - Simona Pilevičienė
- National Food and Veterinary Risk Assessment Institute, Vilnius, Lithuania
| | - Jūratė Buitkuvienė
- National Food and Veterinary Risk Assessment Institute, Vilnius, Lithuania
| | | | - Alvydas Malakauskas
- Veterinary Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
- State Food and Veterinary Service, Vilnius, Lithuania
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7
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Chothe SK, Jakka P, Boorla VS, Ramasamy S, Gontu A, Nissly RH, Brown J, Turner G, Sewall BJ, Reeder DM, Field KA, Engiles JB, Amirthalingam S, Ravichandran A, LaBella L, Nair MS, Maranas CD, Kuchipudi SV. Little Brown Bats ( Myotis lucifugus) Support the Binding of SARS-CoV-2 Spike and Are Likely Susceptible to SARS-CoV-2 Infection. Viruses 2023; 15:v15051103. [PMID: 37243189 DOI: 10.3390/v15051103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 04/25/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), believed to have originated from a bat species, can infect a wide range of non-human hosts. Bats are known to harbor hundreds of coronaviruses capable of spillover into human populations. Recent studies have shown a significant variation in the susceptibility among bat species to SARS-CoV-2 infection. We show that little brown bats (LBB) express angiotensin-converting enzyme 2 receptor and the transmembrane serine protease 2, which are accessible to and support SARS-CoV-2 binding. All-atom molecular dynamics (MD) simulations revealed that LBB ACE2 formed strong electrostatic interactions with the RBD similar to human and cat ACE2 proteins. In summary, LBBs, a widely distributed North American bat species, could be at risk of SARS-CoV-2 infection and potentially serve as a natural reservoir. Finally, our framework, combining in vitro and in silico methods, is a useful tool to assess the SARS-CoV-2 susceptibility of bats and other animal species.
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Affiliation(s)
- Shubhada K Chothe
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Padmaja Jakka
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Veda Sheersh Boorla
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Santhamani Ramasamy
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Abhinay Gontu
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Ruth H Nissly
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Justin Brown
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Pennsylvania Game Commission, 2001 Elmerton Ave, Harrisburg, PA 17110, USA
| | - Gregory Turner
- Pennsylvania Game Commission, 2001 Elmerton Ave, Harrisburg, PA 17110, USA
| | - Brent J Sewall
- Department of Biology, Temple University, Philadelphia, PA 19122, USA
| | - DeeAnn M Reeder
- Department of Biology, Bucknell University, Lewisburg, PA 17837, USA
| | - Kenneth A Field
- Department of Biology, Bucknell University, Lewisburg, PA 17837, USA
| | - Julie B Engiles
- Departments of Pathobiology and Clinical Studies, New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA 19348, USA
| | - Saranya Amirthalingam
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Abirami Ravichandran
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Lindsey LaBella
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Meera Surendran Nair
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Costas D Maranas
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Suresh V Kuchipudi
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Infectious Disease Dynamics, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
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8
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Ong'era EM, Mohammed KS, Makori TO, Bejon P, Ocholla-Oyier LI, Nokes DJ, Agoti CN, Githinji G. High-throughput sequencing approaches applied to SARS-CoV-2. Wellcome Open Res 2023. [DOI: 10.12688/wellcomeopenres.18701.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
High-throughput sequencing is crucial for surveillance and control of viral outbreaks. During the ongoing coronavirus disease 2019 (COVID-19) pandemic, advances in the high-throughput sequencing technology resources have enhanced diagnosis, surveillance, and vaccine discovery. From the onset of the pandemic in December 2019, several genome-sequencing approaches have been developed and supported across the major sequencing platforms such as Illumina, Oxford Nanopore, PacBio, MGI DNBSEQTM and Ion Torrent. Here, we share insights from the sequencing approaches developed for sequencing of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) between December 2019 and October 2022.
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Nielsen SS, Alvarez J, Bicout DJ, Calistri P, Canali E, Drewe JA, Garin‐Bastuji B, Gonzales Rojas JL, Gortázar C, Herskin M, Michel V, Miranda Chueca MÁ, Padalino B, Pasquali P, Roberts HC, Spoolder H, Velarde A, Viltrop A, Winckler C, Adlhoch C, Aznar I, Baldinelli F, Boklund A, Broglia A, Gerhards N, Mur L, Nannapaneni P, Ståhl K. SARS-CoV-2 in animals: susceptibility of animal species, risk for animal and public health, monitoring, prevention and control. EFSA J 2023; 21:e07822. [PMID: 36860662 PMCID: PMC9968901 DOI: 10.2903/j.efsa.2023.7822] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
Abstract
The epidemiological situation of SARS-CoV-2 in humans and animals is continually evolving. To date, animal species known to transmit SARS-CoV-2 are American mink, raccoon dog, cat, ferret, hamster, house mouse, Egyptian fruit bat, deer mouse and white-tailed deer. Among farmed animals, American mink have the highest likelihood to become infected from humans or animals and further transmit SARS-CoV-2. In the EU, 44 outbreaks were reported in 2021 in mink farms in seven MSs, while only six in 2022 in two MSs, thus representing a decreasing trend. The introduction of SARS-CoV-2 into mink farms is usually via infected humans; this can be controlled by systematically testing people entering farms and adequate biosecurity. The current most appropriate monitoring approach for mink is the outbreak confirmation based on suspicion, testing dead or clinically sick animals in case of increased mortality or positive farm personnel and the genomic surveillance of virus variants. The genomic analysis of SARS-CoV-2 showed mink-specific clusters with a potential to spill back into the human population. Among companion animals, cats, ferrets and hamsters are those at highest risk of SARS-CoV-2 infection, which most likely originates from an infected human, and which has no or very low impact on virus circulation in the human population. Among wild animals (including zoo animals), mostly carnivores, great apes and white-tailed deer have been reported to be naturally infected by SARS-CoV-2. In the EU, no cases of infected wildlife have been reported so far. Proper disposal of human waste is advised to reduce the risks of spill-over of SARS-CoV-2 to wildlife. Furthermore, contact with wildlife, especially if sick or dead, should be minimised. No specific monitoring for wildlife is recommended apart from testing hunter-harvested animals with clinical signs or found-dead. Bats should be monitored as a natural host of many coronaviruses.
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10
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Boyd E, Coombe M, Prystajecky N, Caleta JM, Sekirov I, Tyson J, Himsworth C. Hands off the Mink! Using Environmental Sampling for SARS-CoV-2 Surveillance in American Mink. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1248. [PMID: 36674005 PMCID: PMC9858792 DOI: 10.3390/ijerph20021248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/08/2023] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
Throughout the COVID-19 pandemic, numerous non-human species were shown to be susceptible to natural infection by SARS-CoV-2, including farmed American mink. Once infected, American mink can transfer the virus from mink to human and mink to mink, resulting in a high rate of viral mutation. Therefore, outbreak surveillance on American mink farms is imperative for both mink and human health. Historically, disease surveillance on mink farms has consisted of a combination of mortality and live animal sampling; however, these methodologies have significant limitations. This study compared PCR testing of both deceased and live animal samples to environmental samples on an active outbreak premise, to determine the utility of environmental sampling. Environmental sampling mirrored trends in both deceased and live animal sampling in terms of percent positivity and appeared more sensitive in some low-prevalence instances. PCR CT values of environmental samples were significantly different from live animal samples' CT values and were consistently high (mean CT = 36.2), likely indicating a low amount of viral RNA in the samples. There is compelling evidence in favour of environmental sampling for the purpose of disease surveillance, specifically as an early warning tool for SARS-CoV-2; however, further work is needed to ultimately determine whether environmental samples are viable sources for molecular epidemiology investigations.
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Affiliation(s)
- Ellen Boyd
- Ministry of Agriculture and Food, Government of British Columbia, Abbotsford, BC V3G 2M3, Canada
- School of Population and Public Health, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Michelle Coombe
- Ministry of Agriculture and Food, Government of British Columbia, Abbotsford, BC V3G 2M3, Canada
- School of Population and Public Health, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Natalie Prystajecky
- School of Population and Public Health, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
- BC Centre for Disease Control, Vancouver, BC V5Z 4R4, Canada
| | | | - Inna Sekirov
- BC Centre for Disease Control, Vancouver, BC V5Z 4R4, Canada
| | - John Tyson
- BC Centre for Disease Control, Vancouver, BC V5Z 4R4, Canada
| | - Chelsea Himsworth
- Ministry of Agriculture and Food, Government of British Columbia, Abbotsford, BC V3G 2M3, Canada
- School of Population and Public Health, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
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11
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Cossaboom CM, Wendling NM, Lewis NM, Rettler H, Harvey RR, Amman BR, Towner JS, Spengler JR, Erickson R, Burnett C, Young EL, Oakeson K, Carpenter A, Kainulainen MH, Chatterjee P, Flint M, Uehara A, Li Y, Zhang J, Kelleher A, Lynch B, Retchless AC, Tong S, Ahmad A, Bunkley P, Godino C, Herzegh O, Drobeniuc J, Rooney J, Taylor D, Barton Behravesh C. One Health Investigation of SARS-CoV-2 in People and Animals on Multiple Mink Farms in Utah. Viruses 2022; 15:96. [PMID: 36680136 PMCID: PMC9864593 DOI: 10.3390/v15010096] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 12/31/2022] Open
Abstract
From July−November 2020, mink (Neogale vison) on 12 Utah farms experienced an increase in mortality rates due to confirmed SARS-CoV-2 infection. We conducted epidemiologic investigations on six farms to identify the source of virus introduction, track cross-species transmission, and assess viral evolution. Interviews were conducted and specimens were collected from persons living or working on participating farms and from multiple animal species. Swabs and sera were tested by SARS-CoV-2 real-time reverse transcription polymerase chain reaction (rRT-PCR) and serological assays, respectively. Whole genome sequencing was attempted for specimens with cycle threshold values <30. Evidence of SARS-CoV-2 infection was detected by rRT-PCR or serology in ≥1 person, farmed mink, dog, and/or feral cat on each farm. Sequence analysis showed high similarity between mink and human sequences on corresponding farms. On farms sampled at multiple time points, mink tested rRT-PCR positive up to 16 weeks post-onset of increased mortality. Workers likely introduced SARS-CoV-2 to mink, and mink transmitted SARS-CoV-2 to other animal species; mink-to-human transmission was not identified. Our findings provide critical evidence to support interventions to prevent and manage SARS-CoV-2 in people and animals on mink farms and emphasizes the importance of a One Health approach to address emerging zoonoses.
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Affiliation(s)
- Caitlin M. Cossaboom
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Natalie M. Wendling
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Nathaniel M. Lewis
- Utah Department of Health and Human Services, Salt Lake City, UT 84116, USA
- Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Hannah Rettler
- Utah Department of Health and Human Services, Salt Lake City, UT 84116, USA
| | - Robert R. Harvey
- Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
| | - Brian R. Amman
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Jonathan S. Towner
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Jessica R. Spengler
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Robert Erickson
- Utah Department of Agriculture and Food, Salt Lake City, UT 84129, USA
| | - Cindy Burnett
- Utah Department of Health and Human Services, Salt Lake City, UT 84116, USA
| | - Erin L. Young
- Utah Public Health Laboratory, Utah Department of Health and Human Services, Salt Lake City, UT 84129, USA
| | - Kelly Oakeson
- Utah Public Health Laboratory, Utah Department of Health and Human Services, Salt Lake City, UT 84129, USA
| | - Ann Carpenter
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Markus H. Kainulainen
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Payel Chatterjee
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Mike Flint
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Anna Uehara
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Yan Li
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Jing Zhang
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Anna Kelleher
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Brian Lynch
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Adam C. Retchless
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Suxiang Tong
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Ausaf Ahmad
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Paige Bunkley
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Claire Godino
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Owen Herzegh
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Jan Drobeniuc
- CDC National Center for HIV/AIDS, Viral Hepatitis, STD and TB Prevention, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Jane Rooney
- United States Department of Agriculture, Animal and Plant Health Inspection Service, Veterinary Services, Fort Collins, CO 80526, USA
| | - Dean Taylor
- Utah Department of Agriculture and Food, Salt Lake City, UT 84129, USA
| | - Casey Barton Behravesh
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
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12
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Reggiani A, Rugna G, Bonilauri P. SARS-CoV-2 and animals, a long story that doesn't have to end now: What we need to learn from the emergence of the Omicron variant. Front Vet Sci 2022; 9:1085613. [PMID: 36590812 PMCID: PMC9798331 DOI: 10.3389/fvets.2022.1085613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 11/29/2022] [Indexed: 12/23/2022] Open
Abstract
OIE, the world organization for animal health, recently released an update on the state of the art of knowledge regarding SARS-CoV-2 in animals. For farmed animals, ferrets and minks were found to be highly susceptible to the virus and develop symptomatic disease both in natural conditions and in experimental infections. Lagomorphs of the species Oryctolagus cuniculus are indicated as highly susceptible to the virus under experimental conditions, but show no symptoms of the disease and do not transmit the virus between conspecifics, unlike raccoon dogs (Nyctereutes procyonoides), which in addition to being highly susceptible to the virus under experimental conditions, can also transmit the virus between conspecifics. Among felines, the circulation of the virus has reached a level of cases such as sometimes suggests the experimental use of vaccines for human use or treatments with monoclonal antibodies. But even among wild animals, several species (White-tailed deer, Egyptian rousettes, and minks) have now been described as potential natural reservoirs of the virus. This proven circulation of SARS-CoV-2 among animals has not been accompanied by the development of an adequate surveillance system that allows following the evolution of the virus among its natural hosts. This will be all the more relevant as the surveillance system in humans inevitably drops and we move to surveillance by sentinels similar to the human flu virus. The lesson that we can draw from the emergence of Omicron and, more than likely, its animal origin must not be lost, and in this mini-review, we explain why.
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13
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Pappas G, Vokou D, Sainis I, Halley JM. SARS-CoV-2 as a Zooanthroponotic Infection: Spillbacks, Secondary Spillovers, and Their Importance. Microorganisms 2022; 10:2166. [PMID: 36363758 PMCID: PMC9696655 DOI: 10.3390/microorganisms10112166] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 10/06/2023] Open
Abstract
In the midst of a persistent pandemic of a probable zoonotic origin, one needs to constantly evaluate the interplay of SARS-CoV-2 (severe acute respiratory syndrome-related coronavirus-2) with animal populations. Animals can get infected from humans, and certain species, including mink and white-tailed deer, exhibit considerable animal-to-animal transmission resulting in potential endemicity, mutation pressure, and possible secondary spillover to humans. We attempt a comprehensive review of the available data on animal species infected by SARS-CoV-2, as presented in the scientific literature and official reports of relevant organizations. We further evaluate the lessons humans should learn from mink outbreaks, white-tailed deer endemicity, zoo outbreaks, the threat for certain species conservation, the possible implication of rodents in the evolution of novel variants such as Omicron, and the potential role of pets as animal reservoirs of the virus. Finally, we outline the need for a broader approach to the pandemic and epidemics, in general, incorporating the principles of One Health and Planetary Health.
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Affiliation(s)
- Georgios Pappas
- Institute of Continuing Medical Education of Ioannina, 45333 Ioannina, Greece
| | - Despoina Vokou
- Department of Ecology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Ioannis Sainis
- Medical School, Faculty of Health Sciences, University of Ioannina, 45110 Ioannina, Greece
| | - John M. Halley
- Laboratory of Ecology, Department of Biological Applications and Technology, Faculty of Health Sciences, University of Ioannina, 45110 Ioannina, Greece
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14
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Wernike K, Drewes S, Mehl C, Hesse C, Imholt C, Jacob J, Ulrich RG, Beer M. No Evidence for the Presence of SARS-CoV-2 in Bank Voles and Other Rodents in Germany, 2020–2022. Pathogens 2022; 11:pathogens11101112. [PMID: 36297169 PMCID: PMC9610409 DOI: 10.3390/pathogens11101112] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/23/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022] Open
Abstract
Rodentia is the most speciose mammalian order, found across the globe, with some species occurring in close proximity to humans. Furthermore, rodents are known hosts for a variety of zoonotic pathogens. Among other animal species, rodents came into focus when the severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) spread through human populations across the globe, initially as laboratory animals to study the viral pathogenesis and to test countermeasures. Under experimental conditions, some rodent species including several cricetid species are susceptible to SARS-CoV-2 infection and a few of them can transmit the virus to conspecifics. To investigate whether SARS-CoV-2 is also spreading in wild rodent populations in Germany, we serologically tested samples of free-ranging bank voles (Myodes glareolus, n = 694), common voles (Microtus arvalis, n = 2), house mice (Mus musculus, n = 27), brown or Norway rats (Rattus norvegicus, n = 97) and Apodemus species (n = 8) for antibodies against the virus. The samples were collected from 2020 to 2022 in seven German federal states. All but one sample tested negative by a multispecies ELISA based on the receptor-binding domain (RBD) of SARS-CoV-2. The remaining sample, from a common vole collected in 2021, was within the inconclusive range of the RBD-ELISA, but this result could not be confirmed by a surrogate virus neutralization test as the sample gave a negative result in this test. These results indicate that SARS-CoV-2 has not become highly prevalent in wild rodent populations in Germany.
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Affiliation(s)
- Kerstin Wernike
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, 17493 Greifswald-Insel Riems, Germany
- Correspondence:
| | - Stephan Drewes
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, 17493 Greifswald-Insel Riems, Germany
| | - Calvin Mehl
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, 17493 Greifswald-Insel Riems, Germany
- German Centre for Infection Research (DZIF), Site Hamburg-Lübeck-Borstel-Riems, 17493 Greifswald-Insel Riems, Germany
| | - Christin Hesse
- Rodent Research, Institute for Epidemiology and Pathogen Diagnostics, Julius Kühn-Institute (JKI), Federal Research Centre for Cultivated Plants, 48161 Münster, Germany
| | - Christian Imholt
- Rodent Research, Institute for Epidemiology and Pathogen Diagnostics, Julius Kühn-Institute (JKI), Federal Research Centre for Cultivated Plants, 48161 Münster, Germany
| | - Jens Jacob
- Rodent Research, Institute for Epidemiology and Pathogen Diagnostics, Julius Kühn-Institute (JKI), Federal Research Centre for Cultivated Plants, 48161 Münster, Germany
| | - Rainer G. Ulrich
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, 17493 Greifswald-Insel Riems, Germany
- German Centre for Infection Research (DZIF), Site Hamburg-Lübeck-Borstel-Riems, 17493 Greifswald-Insel Riems, Germany
| | - Martin Beer
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, 17493 Greifswald-Insel Riems, Germany
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15
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Manifestation of SARS-CoV-2 Infections in Mink Related to Host-, Virus- and Farm-Associated Factors, The Netherlands 2020. Viruses 2022; 14:v14081754. [PMID: 36016375 PMCID: PMC9414453 DOI: 10.3390/v14081754] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/26/2022] [Accepted: 08/09/2022] [Indexed: 12/15/2022] Open
Abstract
SARS-CoV-2 outbreaks on 69 Dutch mink farms in 2020 were studied to identify risk factors for virus introduction and transmission and to improve surveillance and containment measures. Clinical signs, laboratory test results, and epidemiological aspects were investigated, such as the date and reason of suspicion, housing, farm size and distances, human contact structure, biosecurity measures, and presence of wildlife, pets, pests, and manure management. On seven farms, extensive random sampling was performed, and age, coat color, sex, and clinical signs were recorded. Mild to severe respiratory signs and general diseases such as apathy, reduced feed intake, and increased mortality were detected on 62/69 farms. Throat swabs were more likely to result in virus detection than rectal swabs. Clinical signs differed between virus clusters and were more severe for dark-colored mink, males, and animals infected later during the year. Geographical clustering was found for one virus cluster. Shared personnel could explain some cases, but other transmission routes explaining farm-to-farm spread were not elucidated. An early warning surveillance system, strict biosecurity measures, and a (temporary) ban on mink farming and vaccinating animals and humans can contribute to reducing the risks of the virus spreading and acquisition of potential mutations relevant to human and animal health.
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16
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No Evidence of SARS-CoV-2 Infection in Wild Mink (Mustela lutreola and Neogale vison) from Northern Spain during the First Two Years of Pandemic. Animals (Basel) 2022; 12:ani12151971. [PMID: 35953960 PMCID: PMC9367499 DOI: 10.3390/ani12151971] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/25/2022] [Accepted: 07/29/2022] [Indexed: 12/04/2022] Open
Abstract
Simple Summary The severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) causing coronavirus disease-2019 (COVID-19) is a betacoronavirus (β-CoV) closely related to Severe Acute Respiratory Syndrome (SARS-CoV) and the Middle East Respiratory Syndrome Coronavirus (MERS-CoV), which have also caused severe outbreaks of disease in human populations. Human-to-animal transmission events during the COVID-19 pandemic have been documented in several countries. Different animal species have been proven to be susceptible to infection with SARS-CoV-2 both naturally and by experimental infection, including mustelids such as ferrets, otters, and American mink (Neogale vison). In this sense, infected farmed American mink develop respiratory signs associated with viral pneumonia. This study evaluates the presence of SARS-CoV-2 in European mink (Mustela lutreola) and American mink from Spain, by enzyme-linked immunosorbent assay (ELISA) using the receptor binding domain (RBD) of Spike protein antigen in serum samples and/or by RT-qPCR assays in oropharyngeal and rectal swabs. From January 2020 to February 2022, a total of 162 animals (127 European mink and 35 American mink) with no evidence of SARS-CoV-2 infection were included in the study. Of the 126 serum samples analysed by serology, anti-SARS-CoV-2 antibodies were not detected in the mink included in this study. In the same way, SARS-CoV-2 RNA has not been detected in any of the 160 swabs samples analysed by RT-qPCR. This study shows the absence of the wild mink exposure to SARS-CoV-2 in a geographic area seriously affected by COVID-19. With these results, it can be considered that the probability that the virus is circulating in wild mink is low. With this, the risk of virus transmission to humans by this route is also considered improbable. Abstract The impact of the SARS-CoV-2 pandemic on wildlife is largely unevaluated, and extended surveillance of animal species is needed to reach a consensus on the role of animals in the emergence and maintenance of SARS-CoV-2. This infection has been detected in farmed and domestic animals and wild animals, mainly in captivity. The interactions or shared resources with wildlife could represent a potential transmission pathway for the SARS-CoV-2 spill over to other wild species and could lead to health consequences or the establishment of new reservoirs in susceptible hosts. This study evaluated the presence of SARS-CoV-2 in European mink (Mustela lutreola) and American mink (Neogale vison) in Spain by enzyme-linked immunosorbent assay (ELISA) using the receptor binding domain (RBD) of Spike antigen in serum samples and/or by RT-qPCR assays in oropharyngeal and rectal swabs. From January 2020 to February 2022, a total of 162 animals (127 European mink and 35 American mink) with no evidence of SARS-CoV-2 infection were included in the study. Antibodies against the SARS-CoV-2 were not found in the serum samples analysed (n = 126), nor was the virus amplified by RT-qPCR (n = 160 swabs). Our results suggest that the potential role of wild mink and the European mink bred in captivity and released to the wild as dispersers of SARS-CoV-2 is so far low. However, wildlife surveillance for early detection of human and animal risks should be continued. In this sense, epidemiological monitoring measures, including serology and molecular analysis, are necessary.
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Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) delta variant transmits much more rapidly than prior SARS-CoV-2 viruses. The primary mode of transmission is via short range aerosols that are emitted from the respiratory tract of an index case. There is marked heterogeneity in the spread of this virus, with 10% to 20% of index cases contributing to 80% of secondary cases, while most index cases have no subsequent transmissions. Vaccination, ventilation, masking, eye protection, and rapid case identification with contact tracing and isolation can all decrease the transmission of this virus.
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Affiliation(s)
- Eric A Meyerowitz
- Montefiore Medical Center, 111 East 210th Street, Bronx, NY 10467, USA.
| | - Aaron Richterman
- Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
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18
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Jairak W, Chamsai E, Udom K, Charoenkul K, Chaiyawong S, Techakriengkrai N, Tangwangvivat R, Suwannakarn K, Amonsin A. SARS-CoV-2 delta variant infection in domestic dogs and cats, Thailand. Sci Rep 2022; 12:8403. [PMID: 35589808 PMCID: PMC9117851 DOI: 10.1038/s41598-022-12468-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 05/11/2022] [Indexed: 11/22/2022] Open
Abstract
In June-September 2021, we investigated severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infections in domestic dogs and cats (n = 225) in Bangkok and the vicinities, Thailand. SARS-CoV-2 was detected in a dog and a cat from COVID-19 positive households. Whole genome sequence analysis identified SARS-CoV-2 delta variant of concern (B.1.617.2). Phylogenetic analysis showed that SARS-CoV-2 isolated from dog and cat were grouped into sublineage AY.30 and AY.85, respectively. Antibodies against SARS-CoV-2 could be detected in both dog (day 9) and cat (day 14) after viral RNA detection. This study raises awareness on spill-over of variant of concern in domestic animals due to human-animal interface. Thus, surveillance of SARS-CoV-2 in domestic pets should be routinely conducted.
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Affiliation(s)
- Waleemas Jairak
- Center of Excellence for Emerging and Re-Emerging Infectious Diseases in Animals, and One Health Cluster, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand
- Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Bureau of Research and Conservation, Zoological Park Organization, Bangkok, Thailand
| | - Ekkapat Chamsai
- Center of Excellence for Emerging and Re-Emerging Infectious Diseases in Animals, and One Health Cluster, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand
- Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Kitikhun Udom
- Center of Excellence for Emerging and Re-Emerging Infectious Diseases in Animals, and One Health Cluster, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand
- Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Kamonpan Charoenkul
- Center of Excellence for Emerging and Re-Emerging Infectious Diseases in Animals, and One Health Cluster, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand
- Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Supassama Chaiyawong
- Center of Excellence for Emerging and Re-Emerging Infectious Diseases in Animals, and One Health Cluster, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand
- Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Navapon Techakriengkrai
- Center of Excellence for Emerging and Re-Emerging Infectious Diseases in Animals, and One Health Cluster, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand
- Department of Veterinary Microbiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Ratanaporn Tangwangvivat
- Coordinating Unit for One Health, Division of Communicable Diseases, Department of Disease Control, Nonthaburi, Thailand
| | - Kamol Suwannakarn
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Alongkorn Amonsin
- Center of Excellence for Emerging and Re-Emerging Infectious Diseases in Animals, and One Health Cluster, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand.
- Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.
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19
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Cardinale D, Tafuro M, Mancusi A, Girardi S, Capuano F, Proroga YTR, Corrado F, D’Auria JL, Coppola A, Rofrano G, Volzone P, Galdi P, De Vita S, Gallo A, Suffredini E, Pierri B, Cerino P, Morgante M. Sponge Whirl-Pak Sampling Method and Droplet Digital RT-PCR Assay for Monitoring of SARS-CoV-2 on Surfaces in Public and Working Environments. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19105861. [PMID: 35627397 PMCID: PMC9141805 DOI: 10.3390/ijerph19105861] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/05/2022] [Accepted: 05/08/2022] [Indexed: 02/06/2023]
Abstract
The SARS-CoV-2 can spread directly via saliva, respiratory aerosols and droplets, and indirectly by contact through contaminated objects and/or surfaces and by air. In the context of COVID-19 fomites can be an important vehicle of virus transmission and contribute to infection risk in public environments. The aim of the study was to analyze through surface sampling (sponge method) the presence of SARS-CoV-2 in public and working environments, in order to evaluate the risk for virus transmission. Seventy-seven environmental samples were taken using sterile sponges in 17 animal farms, 4 public transport buses, 1 supermarket and 1 hotel receptive structure. Furthermore, 246 and 93 swab samples were taken in the farms from animals and from workers, respectively. SARS-CoV-2 detection was conducted by real-time RT-PCR and by digital droplet RT-PCR (dd RT-PCR) using RdRp, gene E and gene N as targets. None of the human and animal swab samples were positive for SARS-CoV-2, while detection was achieved in 20 of the 77 sponge samples (26%) using dd RT-PCR. Traces of the RdRp gene, gene E and gene N were found in 17/77 samples (22%, average concentration 31.2 g.c./cm2, range 5.6 to 132 g.c./cm2), 8/77 samples (10%, average concentration 15.1 g.c./cm2, range 6 to 36 g.c./cm2), and in 1/77 (1%, concentration 7.2 g.c./cm2). Higher detection rates were associated with sampling in animal farms and on public transport buses (32% and 30%) compared to the supermarket (21%) and the hotel (no detection). The result of the study suggests that the risk of contamination of surfaces with SARS-CoV-2 increases in environments in which sanitation strategies are not suitable and/or in highly frequented locations, such as public transportation. Considering the analytical methods, the dd RT-PCR was the only approach achieving detection of SARS-CoV-2 traces in environmental samples. Thus, dd RT-PCR emerges as a reliable tool for sensitive SARS-CoV-2 detection.
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Affiliation(s)
- Davide Cardinale
- Centro di Referenza Nazionale per l’Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute n. 2, 80055 Portici, Italy; (D.C.); (M.T.); (F.C.); (J.L.D.); (A.C.); (G.R.); (P.V.); (P.G.); (S.D.V.); (A.G.); (P.C.)
| | - Maria Tafuro
- Centro di Referenza Nazionale per l’Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute n. 2, 80055 Portici, Italy; (D.C.); (M.T.); (F.C.); (J.L.D.); (A.C.); (G.R.); (P.V.); (P.G.); (S.D.V.); (A.G.); (P.C.)
| | - Andrea Mancusi
- Department of Food Security Coordination, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute n. 2, 80055 Portici, Italy; (A.M.); (S.G.); (F.C.); (Y.T.R.P.)
| | - Santa Girardi
- Department of Food Security Coordination, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute n. 2, 80055 Portici, Italy; (A.M.); (S.G.); (F.C.); (Y.T.R.P.)
| | - Federico Capuano
- Department of Food Security Coordination, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute n. 2, 80055 Portici, Italy; (A.M.); (S.G.); (F.C.); (Y.T.R.P.)
| | - Yolande Thérèse Rose Proroga
- Department of Food Security Coordination, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute n. 2, 80055 Portici, Italy; (A.M.); (S.G.); (F.C.); (Y.T.R.P.)
| | - Federica Corrado
- Centro di Referenza Nazionale per l’Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute n. 2, 80055 Portici, Italy; (D.C.); (M.T.); (F.C.); (J.L.D.); (A.C.); (G.R.); (P.V.); (P.G.); (S.D.V.); (A.G.); (P.C.)
| | - Jacopo Luigi D’Auria
- Centro di Referenza Nazionale per l’Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute n. 2, 80055 Portici, Italy; (D.C.); (M.T.); (F.C.); (J.L.D.); (A.C.); (G.R.); (P.V.); (P.G.); (S.D.V.); (A.G.); (P.C.)
| | - Annachiara Coppola
- Centro di Referenza Nazionale per l’Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute n. 2, 80055 Portici, Italy; (D.C.); (M.T.); (F.C.); (J.L.D.); (A.C.); (G.R.); (P.V.); (P.G.); (S.D.V.); (A.G.); (P.C.)
| | - Giuseppe Rofrano
- Centro di Referenza Nazionale per l’Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute n. 2, 80055 Portici, Italy; (D.C.); (M.T.); (F.C.); (J.L.D.); (A.C.); (G.R.); (P.V.); (P.G.); (S.D.V.); (A.G.); (P.C.)
| | - Palmiero Volzone
- Centro di Referenza Nazionale per l’Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute n. 2, 80055 Portici, Italy; (D.C.); (M.T.); (F.C.); (J.L.D.); (A.C.); (G.R.); (P.V.); (P.G.); (S.D.V.); (A.G.); (P.C.)
| | - Pio Galdi
- Centro di Referenza Nazionale per l’Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute n. 2, 80055 Portici, Italy; (D.C.); (M.T.); (F.C.); (J.L.D.); (A.C.); (G.R.); (P.V.); (P.G.); (S.D.V.); (A.G.); (P.C.)
| | - Sabato De Vita
- Centro di Referenza Nazionale per l’Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute n. 2, 80055 Portici, Italy; (D.C.); (M.T.); (F.C.); (J.L.D.); (A.C.); (G.R.); (P.V.); (P.G.); (S.D.V.); (A.G.); (P.C.)
| | - Alfonso Gallo
- Centro di Referenza Nazionale per l’Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute n. 2, 80055 Portici, Italy; (D.C.); (M.T.); (F.C.); (J.L.D.); (A.C.); (G.R.); (P.V.); (P.G.); (S.D.V.); (A.G.); (P.C.)
| | - Elisabetta Suffredini
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy;
| | - Biancamaria Pierri
- Centro di Referenza Nazionale per l’Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute n. 2, 80055 Portici, Italy; (D.C.); (M.T.); (F.C.); (J.L.D.); (A.C.); (G.R.); (P.V.); (P.G.); (S.D.V.); (A.G.); (P.C.)
- Correspondence:
| | - Pellegrino Cerino
- Centro di Referenza Nazionale per l’Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute n. 2, 80055 Portici, Italy; (D.C.); (M.T.); (F.C.); (J.L.D.); (A.C.); (G.R.); (P.V.); (P.G.); (S.D.V.); (A.G.); (P.C.)
| | - Maria Morgante
- Azienda Sanitaria Locale Avellino, 83100 Avellino, Italy;
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20
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Padilla-Blanco M, Aguiló-Gisbert J, Rubio V, Lizana V, Chillida-Martínez E, Cardells J, Maiques E, Rubio-Guerri C. The Finding of the Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV-2) in a Wild Eurasian River Otter (Lutra lutra) Highlights the Need for Viral Surveillance in Wild Mustelids. Front Vet Sci 2022; 9:826991. [PMID: 35433914 PMCID: PMC9010019 DOI: 10.3389/fvets.2022.826991] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 02/14/2022] [Indexed: 01/02/2023] Open
Abstract
Animals have been involved in the three known outbreaks of severe respiratory syndromes due to coronaviruses (years 2005, 2012, and 2019). The pandemic nature of the SARS-CoV-2 outbreak increases the likelihood of infection from humans of susceptible animal species that, thus, could become secondary viral hosts and even disease reservoirs. We present evidence of spillover infection of wild mustelids by reporting the presence of SARS-CoV-2 in a Eurasian river otter found near a water reservoir in the Valencian Community (Spain). We detected the virus using two different commercial RTqPCR assays on RNA extracted from the nasopharynx (swabbing) and from lung tissue and mediastinal lymph node homogenates. The corresponding samples from two additional otters from distant sites tested negative in identical assays. The diagnosis in the positive otter was confirmed by two-tube RT-PCR assay in which RNA was first retrotranscribed, and then specific regions of the spike (S), nucleocapsid (N), and ORF10 genes were separately amplified from the produced cDNA, followed by electrophoretic visualization and Sanger sequencing. The sequences of the amplified products revealed some non-synonymous changes in the N and ORF10 partial sequences, relative to the consensus sequence. These changes, identified already in human patient samples, point to human origin of the virus, although their specific combination was unique. These findings, together with our previous report of SARS-CoV-2 infection of feral American mink, highlight the need for SARS-CoV-2 surveillance of wild or feral mustelids to evaluate the risk that these animals could become SARS-CoV-2 reservoirs.
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Affiliation(s)
- Miguel Padilla-Blanco
- Department of Pharmacy, Facultad de Ciencias de la Salud, Universidad Cardenal Herrera-CEU, Valencia, Spain
| | - Jordi Aguiló-Gisbert
- Servicio de Análisis, Investigación, Gestión de Animales Silvestres (SAIGAS), Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, Valencia, Spain
| | - Vicente Rubio
- Instituto de Biomedicina de Valencia del Consejo Superior de Investigaciones Científicas, Centro de Investigació Biomédica en la Red sobre Enfermedades Raras, Instituto de Salud Carlos III, Valencia, Spain
| | - Víctor Lizana
- Servicio de Análisis, Investigación, Gestión de Animales Silvestres (SAIGAS), Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, Valencia, Spain
- Wildlife Ecology & Health Group (WE&H), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Eva Chillida-Martínez
- Servicio de Análisis, Investigación, Gestión de Animales Silvestres (SAIGAS), Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, Valencia, Spain
| | - Jesús Cardells
- Servicio de Análisis, Investigación, Gestión de Animales Silvestres (SAIGAS), Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, Valencia, Spain
- Wildlife Ecology & Health Group (WE&H), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Elisa Maiques
- Department of Biomedical Sciences, Facultad de Ciencias de la Salud, Universidad Cardenal Herrera-CEU, Valencia, Spain
- *Correspondence: Elisa Maiques
| | - Consuelo Rubio-Guerri
- Department of Pharmacy, Facultad de Ciencias de la Salud, Universidad Cardenal Herrera-CEU, Valencia, Spain
- Consuelo Rubio-Guerri
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21
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Nikolaidis M, Papakyriakou A, Chlichlia K, Markoulatos P, Oliver SG, Amoutzias GD. Comparative Analysis of SARS-CoV-2 Variants of Concern, Including Omicron, Highlights Their Common and Distinctive Amino Acid Substitution Patterns, Especially at the Spike ORF. Viruses 2022; 14:707. [PMID: 35458441 PMCID: PMC9025783 DOI: 10.3390/v14040707] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/25/2022] [Accepted: 03/27/2022] [Indexed: 12/13/2022] Open
Abstract
In order to gain a deeper understanding of the recently emerged and highly divergent Omicron variant of concern (VoC), a study of amino acid substitution (AAS) patterns was performed and compared with those of the other four successful variants of concern (Alpha, Beta, Gamma, Delta) and one closely related variant of interest (VoI-Lambda). The Spike ORF consistently emerges as an AAS hotspot in all six lineages, but in Omicron this enrichment is significantly higher. The progenitors of each of these VoC/VoI lineages underwent positive selection in the Spike ORF. However, once they were established, their Spike ORFs have been undergoing purifying selection, despite the application of global vaccination schemes from 2021 onwards. Our analyses reject the hypothesis that the heavily mutated receptor binding domain (RBD) of the Omicron Spike was introduced via recombination from another closely related Sarbecovirus. Thus, successive point mutations appear as the most parsimonious scenario. Intriguingly, in each of the six lineages, we observed a significant number of AAS wherein the new residue is not present at any homologous site among the other known Sarbecoviruses. Such AAS should be further investigated as potential adaptations to the human host. By studying the phylogenetic distribution of AAS shared between the six lineages, we observed that the Omicron (BA.1) lineage had the highest number (8/10) of recurrent mutations.
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Affiliation(s)
- Marios Nikolaidis
- Bioinformatics Laboratory, Department of Biochemistry and Biotechnology, University of Thessaly, 41500 Larissa, Greece;
| | - Athanasios Papakyriakou
- Institute of Biosciences & Applications, National Centre for Scientific Research Demokritos, 15341 Agia Paraskevi, Greece;
| | - Katerina Chlichlia
- Laboratory of Molecular Immunology, Department of Molecular Biology and Genetics, Democritus University of Thrace, University Campus-Dragana, 68100 Alexandroupolis, Greece;
| | - Panayotis Markoulatos
- Microbial Biotechnology-Molecular Bacteriology-Virology Laboratory, Department of Biochemistry and Biotechnology, University of Thessaly, 41500 Larissa, Greece;
| | - Stephen G. Oliver
- Department of Biochemistry, University of Cambridge, Sanger Building, 80 Tennis Court Road, Cambridge CB2 1GA, UK;
| | - Grigorios D. Amoutzias
- Bioinformatics Laboratory, Department of Biochemistry and Biotechnology, University of Thessaly, 41500 Larissa, Greece;
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22
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Cardillo L, de Martinis C, Brandi S, Levante M, Cozzolino L, Spadari L, Boccia F, Carbone C, Pompameo M, Fusco G. SARS-CoV-2 Serological and Biomolecular Analyses among Companion Animals in Campania Region (2020–2021). Microorganisms 2022; 10:microorganisms10020263. [PMID: 35208718 PMCID: PMC8879797 DOI: 10.3390/microorganisms10020263] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/20/2022] [Accepted: 01/21/2022] [Indexed: 02/01/2023] Open
Abstract
The first reports of SARS-CoV-2 among domestic and wild animals, together with the rapid emergence of new variants, have created serious concerns regarding a possible spillback from animal hosts, which could accelerate the evolution of new viral strains. The present study aimed to investigate the prevalence and the transmission of SARS-CoV-2 among both owned and stray pets. A total of 182 dogs and 313 cats were tested for SARS-CoV-2. Specimens collected among owned and stray pets were subjected to RT-PCR and serological examinations. No viral RNA was detected, while anti-N antibodies were observed in six animals (1.3%), one dog (0.8%) and five cats (1.7%). Animals’ background revealed that owned cats, living with owners with COVID-19, showed significantly different prevalence compared to stray ones (p = 0.0067), while no difference was found among dogs. Among the seropositive pets, three owned cats also showed moderate neutralizing antibody titers. Pets and other species are susceptible to SARS-CoV-2 infection because of the spike affinity towards their ACE2 cellular receptor. Nevertheless, the risk of retransmission remains unclear since pet-to-human transmission has never been described. Due to the virus’ high mutation rate, new reservoirs cannot be excluded; thus, it is reasonable to test pets, mostly if living in households affected by COVID-19.
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Affiliation(s)
- Lorena Cardillo
- Unit of Exotic and Vector-Borne Diseases, Istituto Zooprofilattico Sperimentale del Mezzogiorno, 80055 Portici, Italy; (L.C.); (M.L.); (L.C.)
| | - Claudio de Martinis
- Unit of Exotic and Vector-Borne Diseases, Istituto Zooprofilattico Sperimentale del Mezzogiorno, 80055 Portici, Italy; (L.C.); (M.L.); (L.C.)
- Correspondence: ; Tel.: +39-0817865509
| | - Sergio Brandi
- Unit of Virology, Istituto Zooprofilattico Sperimentale del Mezzogiorno, 80055 Portici, Italy; (S.B.); (G.F.)
| | - Martina Levante
- Unit of Exotic and Vector-Borne Diseases, Istituto Zooprofilattico Sperimentale del Mezzogiorno, 80055 Portici, Italy; (L.C.); (M.L.); (L.C.)
| | - Loredana Cozzolino
- Unit of Exotic and Vector-Borne Diseases, Istituto Zooprofilattico Sperimentale del Mezzogiorno, 80055 Portici, Italy; (L.C.); (M.L.); (L.C.)
| | - Luisa Spadari
- Unit of Serology, Istituto Zooprofilattico Sperimentale del Mezzogiorno, 80055 Portici, Italy;
| | - Federica Boccia
- Unit of Animal Health, Department of Prevention, Azienda Sanitaria Locale (ASL), Napoli 3 Sud, 80100 Naples, Italy; (F.B.); (C.C.)
| | - Carmine Carbone
- Unit of Animal Health, Department of Prevention, Azienda Sanitaria Locale (ASL), Napoli 3 Sud, 80100 Naples, Italy; (F.B.); (C.C.)
| | - Marina Pompameo
- Unit of Animal Health “Presidio Ospedaliero Veterinario”, Department of Prevention, Azienda Sanitaria Locale (ASL), Napoli 1 Centro, 80100 Naples, Italy;
| | - Giovanna Fusco
- Unit of Virology, Istituto Zooprofilattico Sperimentale del Mezzogiorno, 80055 Portici, Italy; (S.B.); (G.F.)
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23
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Badiola JJ, Otero A, Sevilla E, Marín B, García Martínez M, Betancor M, Sola D, Pérez Lázaro S, Lozada J, Velez C, Chiner-Oms Á, Comas I, Cancino-Muñoz I, Monleón E, Monzón M, Acín C, Bolea R, Moreno B. SARS-CoV-2 Outbreak on a Spanish Mink Farm: Epidemiological, Molecular, and Pathological Studies. Front Vet Sci 2022; 8:805004. [PMID: 35127883 PMCID: PMC8814420 DOI: 10.3389/fvets.2021.805004] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 12/21/2021] [Indexed: 01/29/2023] Open
Abstract
Farmed minks have been reported to be highly susceptible to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and may represent a risk to humans. In this study, we describe the first outbreak of SARS-CoV-2 occurred on a mink farm in Spain, between June and July 2020, involving 92,700 animals. The outbreak started shortly after some farm workers became seropositive for SARS-CoV-2. Minks showed no clinical signs compatible with SARS-CoV-2 infection throughout the outbreak. Samples from 98 minks were collected for histopathological, serological, and molecular studies. Twenty out of 98 (20.4%) minks were positive by RT-qPCR and 82 out 92 (89%) seroconverted. This finding may reflect a rapid spread of the virus at the farm with most of the animals overcoming the infection. Additionally, SARS-CoV-2 was detected by RT-qPCR in 30% of brain samples from positive minks. Sequencing analysis showed that the mink sequences were not closely related with the other mink SARS-CoV-2 sequences available, and that this mink outbreak has its probable origin in one of the genetic variants that were prevalent in Spain during the first COVID-19 epidemic wave. Histological studies revealed bronchointerstitial pneumonia in some animals. Immunostaining of viral nucleocapsid was also observed in nasal turbinate tissue. Farmed minks could therefore constitute an important SARS-CoV-2 reservoir, contributing to virus spread among minks and humans. Consequently, continuous surveillance of mink farms is needed.
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Affiliation(s)
- Juan José Badiola
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes, Facultad de Veterinaria, Universidad de Zaragoza, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria de Aragón (IISA), Zaragoza, Spain
| | - Alicia Otero
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes, Facultad de Veterinaria, Universidad de Zaragoza, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria de Aragón (IISA), Zaragoza, Spain
- *Correspondence: Alicia Otero
| | - Eloisa Sevilla
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes, Facultad de Veterinaria, Universidad de Zaragoza, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria de Aragón (IISA), Zaragoza, Spain
| | - Belén Marín
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes, Facultad de Veterinaria, Universidad de Zaragoza, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria de Aragón (IISA), Zaragoza, Spain
| | - Mirta García Martínez
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes, Facultad de Veterinaria, Universidad de Zaragoza, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria de Aragón (IISA), Zaragoza, Spain
| | - Marina Betancor
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes, Facultad de Veterinaria, Universidad de Zaragoza, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria de Aragón (IISA), Zaragoza, Spain
| | - Diego Sola
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes, Facultad de Veterinaria, Universidad de Zaragoza, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria de Aragón (IISA), Zaragoza, Spain
| | - Sonia Pérez Lázaro
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes, Facultad de Veterinaria, Universidad de Zaragoza, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria de Aragón (IISA), Zaragoza, Spain
| | - Jenny Lozada
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes, Facultad de Veterinaria, Universidad de Zaragoza, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria de Aragón (IISA), Zaragoza, Spain
| | - Carolina Velez
- Facultad de Ciencias Veterinarias, Universidad Nacional de La Pampa, General Pico, Argentina
| | - Álvaro Chiner-Oms
- Instituto de Biomedicina de Valencia-Consejo Superior de Investigaciones Científicas (IBV-CSIC), Valencia, Spain
| | - Iñaki Comas
- Instituto de Biomedicina de Valencia-Consejo Superior de Investigaciones Cientìficas (IBV-CSIC), CIBER in Epidemiology and Public Health, Valencia, Spain
| | - Irving Cancino-Muñoz
- Instituto de Biomedicina de Valencia-Consejo Superior de Investigaciones Científicas (IBV-CSIC), Valencia, Spain
| | - Eva Monleón
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes, Facultad de Veterinaria, Universidad de Zaragoza, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria de Aragón (IISA), Zaragoza, Spain
| | - Marta Monzón
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes, Facultad de Veterinaria, Universidad de Zaragoza, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria de Aragón (IISA), Zaragoza, Spain
| | - Cristina Acín
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes, Facultad de Veterinaria, Universidad de Zaragoza, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria de Aragón (IISA), Zaragoza, Spain
| | - Rosa Bolea
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes, Facultad de Veterinaria, Universidad de Zaragoza, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria de Aragón (IISA), Zaragoza, Spain
| | - Bernardino Moreno
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes, Facultad de Veterinaria, Universidad de Zaragoza, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria de Aragón (IISA), Zaragoza, Spain
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24
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Chaintoutis SC, Chassalevris T, Balaska S, Mouchtaropoulou E, Tsiolas G, Vlatakis I, Tychala A, Koutsioulis D, Argiriou A, Skoura L, Dovas CI. A Novel Real-Time RT-PCR-Based Methodology for the Preliminary Typing of SARS-CoV-2 Variants, Employing Non-Extendable LNA Oligonucleotides and Three Signature Mutations at the Spike Protein Receptor-Binding Domain. Life (Basel) 2021; 11:life11101015. [PMID: 34685386 PMCID: PMC8540511 DOI: 10.3390/life11101015] [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: 08/18/2021] [Revised: 09/21/2021] [Accepted: 09/22/2021] [Indexed: 12/31/2022] Open
Abstract
Mutations resulting in amino-acid substitutions of the SARS-CoV-2 spike protein receptor-binding domain (RBD) have been associated with enhanced transmissibility and immune escape of the respective variants, namely Alpha, Beta, Gamma or Delta. Rapid identification of the aforementioned variants of concern and their discrimination of other variants is thus of importance for public health interventions. For this reason, a one-step real-time RT-PCR assay employing four locked nucleic acid (LNA) modified TaqMan probes was developed, to target signature mutations associated with amino-acid substitutions at positions 478, 484 and 501 present in the receptor-binding motif (RBM) of the spike protein RBD. This region contains most contacting residues of SARS-CoV-2 that bind to ACE2. A novel strategy employing the use of non-extendable LNA oligonucleotide blockers that can reduce non-specific hybridization of probes increased the number of different mutated sites examined in a multiplex PCR. The combinatory analysis of the different fluorescence signals obtained enabled the preliminary differentiation of SARS-CoV-2 variants of concern. The assay is sensitive with a LOD of 263 copies/reaction for the Delta variant, 170 copies/reaction for the Beta variant, amplification efficiencies > 91% and a linear range of >5 log10 copies/reaction against all targets. Validation of the assay using known SARS-CoV-2-positive and negative samples from humans and animals revealed its ability to correctly identify the targeted mutations and preliminary characterize the SARS-CoV-2 variants. The novel approach for mutation typing using LNA oligonucleotide blockers can be modified to target signature mutations at four different sites in the RBM and further expand the range of variants detected.
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Affiliation(s)
- Serafeim C. Chaintoutis
- Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 11 S. Voutyra Str., 54627 Thessaloniki, Greece; (S.C.C.); (T.C.)
| | - Taxiarchis Chassalevris
- Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 11 S. Voutyra Str., 54627 Thessaloniki, Greece; (S.C.C.); (T.C.)
| | - Sofia Balaska
- Department of Microbiology, AHEPA University Hospital, Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, S. Kyriakidi Str., 54636 Thessaloniki, Greece; (S.B.); (A.T.); (L.S.)
| | - Evangelia Mouchtaropoulou
- Institute of Applied Biosciences, Centre of Research and Technology Hellas, Thermi, 57001 Thessaloniki, Greece; (E.M.); (G.T.); (A.A.)
| | - George Tsiolas
- Institute of Applied Biosciences, Centre of Research and Technology Hellas, Thermi, 57001 Thessaloniki, Greece; (E.M.); (G.T.); (A.A.)
| | - Ioannis Vlatakis
- EnzyQuest PC, Science and Technology Park of Crete, 100 N. Plastira Str., Vassilika Vouton, 70013 Heraklion, Greece; (I.V.); (D.K.)
| | - Areti Tychala
- Department of Microbiology, AHEPA University Hospital, Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, S. Kyriakidi Str., 54636 Thessaloniki, Greece; (S.B.); (A.T.); (L.S.)
| | - Dimitris Koutsioulis
- EnzyQuest PC, Science and Technology Park of Crete, 100 N. Plastira Str., Vassilika Vouton, 70013 Heraklion, Greece; (I.V.); (D.K.)
| | - Anagnostis Argiriou
- Institute of Applied Biosciences, Centre of Research and Technology Hellas, Thermi, 57001 Thessaloniki, Greece; (E.M.); (G.T.); (A.A.)
- Department of Food Science and Nutrition, University of the Aegean, 81400 Myrina, Greece
| | - Lemonia Skoura
- Department of Microbiology, AHEPA University Hospital, Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, S. Kyriakidi Str., 54636 Thessaloniki, Greece; (S.B.); (A.T.); (L.S.)
| | - Chrysostomos I. Dovas
- Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 11 S. Voutyra Str., 54627 Thessaloniki, Greece; (S.C.C.); (T.C.)
- Correspondence: ; Tel.: +30-23-1099-9870
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