您当前的位置: 首页 > 资源详情

Global Biodefense,11月8日,White-Tailed Deer Found to Be Huge Reservoir of SARS-CoV-2 Infection

编译者:YUTING发布时间:Nov 14, 2021点击量:48 来源栏目:最新研究

New research from the US has shown that white-tailed deer are being infected with SARS-CoV-2, the virus that causes COVID-19 in humans. Antibodies were found in 40% of deer that were tested from January to March 2021 across Michigan, Pennsylvania, Illinois and New York state. A second unpublished study has detected the virus in 80% of deer sampled in Iowa between November 2020 and January 2021.

Such high levels of infection led the researchers to conclude that deer are actively transmitting the virus to one another. The scientists also identified different SARS-CoV-2 variants, suggesting there have been many human-to-deer infections.

The large numbers of white-tailed deer in North America and the fact that they often live close to people provide several opportunities for the disease to move between the two species. This can include wildlife management operations, field research, recreation, tourism and hunting. In fact, hunters are likely to be one of the most obvious sources of potential reinfection as they regularly handle dead animals. It has also been suggested that water sources contaminated with SARS-CoV-2 might provide a pathway for transmission, although this has yet to be proved.

Human-to-deer and deer-to-deer transmission are believed to be driving the rapid spread of the disease within white-tailed deer populations across the US. This is particularly apparent during the early months of 2021 when COVID infections were spiking in the human population. Previous studies have shown that SARS-CoV-2 can be passed from humans to domestic and captive animals including cats, dogs, zoo animals and, most notably, farmed mink. But, until now, the disease had not been shown to spread in wildlife species.

White-tailed deer are the most abundant large mammal in North America with a range extending from Canada to South America. The US population alone is estimated to number 30 million animals. They are a social species that live in family groups of two to 12 individuals that can thrive in a range of habitats, including urban parks and woodland.

These aspects of their ecology and behaviour have made them a species of particular concern when it comes to the spread of diseases, including bovine tuberculosis and chronic wasting disease. These pathogens have already led to considerable effects on the health of wild and domestic animal populations around the globe.

The findings from these latest studies have raised concerns that white-tailed deer could be a reservoir of SARS-CoV-2. Not only could this readily infect large numbers of animals, but also, more worryingly, it could spill back to humans.

This type of infection cycle was documented in workers on infected mink farms, which ultimately led to the Danish government euthanising their entire captive population of 17 million animals. It is important to underline that there is currently no evidence of SARS-CoV-2 transmission from white-tailed deer to humans. Initial experimental work has also suggests that infected deer tend not to have symptoms. Still, disease transmission in wildlife populations has considerable implications for human and animal health.

提供服务:导出本资源
  1. 1 Nature,11月10日,Initial whole-genome sequencing and analysis of the host genetic contribution to COVID-19 severity and susceptibility
  2. 2 11月10日_研究人员分析宿主基因对COVID-19严重程度和易感性的影响
  3. 3 11月11日_新冠药物Remestemcel-L二期临床的中期分析结果积极
  4. 4 11月11日_CDC呼吁制定通用口罩规定以减少新冠传播
  5. 5 SSRN,2月20日,Dynamics of the Latest 2019 Novel Coronavirus Disease Epidemic in China: A Descriptive Study
  6. 6 SSRN,2月20日,Mental Health Problems and Social Media Exposure During COVID-19 Outbreak
  7. 7 SSRN,2月20日,Evaluating Incidence and Impact Estimates of the Coronavirus Outbreak from Official and Non-Official Chinese Data Sources
  8. 8 SSRN,2月20日,Clinical Characteristics and Treatment of Patients Infected with COVID-19 in Shishou, China
  9. 9 Nature,11月10日,Mobility network models of COVID-19 explain inequities and inform reopening
  10. 10 1月27日_Nature报道中国新型冠状病毒最新研究进展:病毒传播速度有多快?
  1. 1 Medicalxpress,1月10日,Even symptom-free, people with Omicron are much more likely to spread COVID, say studies
  2. 2 Medicalxpress,1月10日,Researchers use artificial intelligence to guide the search for the next SARS-like virus
  3. 3 1月6日_COVID-19患者味觉改变可能是鼻后嗅觉功能受损的间接结果
  4. 4 Medicalxpress,1月7日,Omicron resistant to most monoclonal antibodies but neutralized by a booster dose
  5. 5 Science,1月6日,Antibody-mediated broad sarbecovirus neutralization through ACE2 molecular mimicry
  6. 6 Biospace,1月5日,Clover Doses First Participants with Homologous Booster Dose of COVID-19 Vaccine Candidate in SPECTRA
  7. 7 Medicalxpress,1月4日,Early data for multivariant COVID-19 vaccine booster shows promise
  8. 8 Cell,1月3日,SARS-CoV-2 Omicron-B.1.1.529 leads to widespread escape from neutralizing antibody responses
  9. 9 Medicalxpress,12月30日,Research team discovers a novel vaccine strategy to prevent SARS-CoV-2 nasal infection
  10. 10 Cell,12月27日,Complement activation induces excessive T cell cytotoxicity in severe COVID-19

版权所有@2017中国科学院文献情报中心

制作维护:中国科学院文献情报中心信息系统部地址:北京中关村北四环西路33号邮政编号:100190