Konner Cool, Natasha N Gaudreault, Jessie D Trujillo, Igor Morozov, Chester D McDowell, Dashzeveg Bold, Taeyong Kwon, Velmurugan Balaraman, Patricia Assato, Daniel W Madden, Emily Mantlo, Jayme Souza-Neto, Franco Matias-Ferreyra, Jaime Retallick, Gagandeep Singh, Michael Schotsaert, Mariano Carossino, Udeni B R Balasuriya, William C Wilson, Roman M Pogranichniy, Adolfo García-Sastre, Juergen A Richt
{"title":"小牛实验性共同感染SARS-CoV-2德尔塔和奥密克戎变异毒株。","authors":"Konner Cool, Natasha N Gaudreault, Jessie D Trujillo, Igor Morozov, Chester D McDowell, Dashzeveg Bold, Taeyong Kwon, Velmurugan Balaraman, Patricia Assato, Daniel W Madden, Emily Mantlo, Jayme Souza-Neto, Franco Matias-Ferreyra, Jaime Retallick, Gagandeep Singh, Michael Schotsaert, Mariano Carossino, Udeni B R Balasuriya, William C Wilson, Roman M Pogranichniy, Adolfo García-Sastre, Juergen A Richt","doi":"10.1080/22221751.2023.2281356","DOIUrl":null,"url":null,"abstract":"<p><p>Since emerging in late 2019, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has repeatedly crossed the species barrier with natural infections reported in various domestic and wild animal species. The emergence and global spread of SARS-CoV-2 variants of concern (VOCs) has expanded the range of susceptible host species. Previous experimental infection studies in cattle using Wuhan-like SARS-CoV-2 isolates suggested that cattle were not likely amplifying hosts for SARS-CoV-2. However, SARS-CoV-2 sero- and RNA-positive cattle have since been identified in Europe, India, and Africa. Here, we investigated the susceptibility and transmission of the Delta and Omicron SARS-CoV-2 VOCs in cattle. Eight Holstein calves were co-infected orally and intranasally with a mixed inoculum of SARS-CoV-2 VOCs Delta and Omicron BA.2. Twenty-four hours post-challenge, two sentinel calves were introduced to evaluate virus transmission. The co-infection resulted in a high proportion of calves shedding SARS-CoV-2 RNA at 1- and 2-days post-challenge (DPC). Extensive tissue distribution of SARS-CoV-2 RNA was observed at 3 and 7 DPC and infectious virus was recovered from two calves at 3 DPC. Next-generation sequencing revealed that only the SARS-CoV-2 Delta variant was detected in clinical samples and tissues. Similar to previous experimental infection studies in cattle, we observed only limited seroconversion and no clear evidence of transmission to sentinel calves. Together, our findings suggest that cattle are more permissive to infection with SARS-CoV-2 Delta than Omicron BA.2 and Wuhan-like isolates but, in the absence of horizontal transmission, are not likely to be reservoir hosts for currently circulating SARS-CoV-2 variants.</p>","PeriodicalId":11602,"journal":{"name":"Emerging Microbes & Infections","volume":" ","pages":"2281356"},"PeriodicalIF":8.4000,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10763854/pdf/","citationCount":"0","resultStr":"{\"title\":\"Experimental co-infection of calves with SARS-CoV-2 Delta and Omicron variants of concern.\",\"authors\":\"Konner Cool, Natasha N Gaudreault, Jessie D Trujillo, Igor Morozov, Chester D McDowell, Dashzeveg Bold, Taeyong Kwon, Velmurugan Balaraman, Patricia Assato, Daniel W Madden, Emily Mantlo, Jayme Souza-Neto, Franco Matias-Ferreyra, Jaime Retallick, Gagandeep Singh, Michael Schotsaert, Mariano Carossino, Udeni B R Balasuriya, William C Wilson, Roman M Pogranichniy, Adolfo García-Sastre, Juergen A Richt\",\"doi\":\"10.1080/22221751.2023.2281356\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Since emerging in late 2019, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has repeatedly crossed the species barrier with natural infections reported in various domestic and wild animal species. The emergence and global spread of SARS-CoV-2 variants of concern (VOCs) has expanded the range of susceptible host species. Previous experimental infection studies in cattle using Wuhan-like SARS-CoV-2 isolates suggested that cattle were not likely amplifying hosts for SARS-CoV-2. However, SARS-CoV-2 sero- and RNA-positive cattle have since been identified in Europe, India, and Africa. Here, we investigated the susceptibility and transmission of the Delta and Omicron SARS-CoV-2 VOCs in cattle. Eight Holstein calves were co-infected orally and intranasally with a mixed inoculum of SARS-CoV-2 VOCs Delta and Omicron BA.2. Twenty-four hours post-challenge, two sentinel calves were introduced to evaluate virus transmission. The co-infection resulted in a high proportion of calves shedding SARS-CoV-2 RNA at 1- and 2-days post-challenge (DPC). Extensive tissue distribution of SARS-CoV-2 RNA was observed at 3 and 7 DPC and infectious virus was recovered from two calves at 3 DPC. Next-generation sequencing revealed that only the SARS-CoV-2 Delta variant was detected in clinical samples and tissues. Similar to previous experimental infection studies in cattle, we observed only limited seroconversion and no clear evidence of transmission to sentinel calves. 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Experimental co-infection of calves with SARS-CoV-2 Delta and Omicron variants of concern.
Since emerging in late 2019, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has repeatedly crossed the species barrier with natural infections reported in various domestic and wild animal species. The emergence and global spread of SARS-CoV-2 variants of concern (VOCs) has expanded the range of susceptible host species. Previous experimental infection studies in cattle using Wuhan-like SARS-CoV-2 isolates suggested that cattle were not likely amplifying hosts for SARS-CoV-2. However, SARS-CoV-2 sero- and RNA-positive cattle have since been identified in Europe, India, and Africa. Here, we investigated the susceptibility and transmission of the Delta and Omicron SARS-CoV-2 VOCs in cattle. Eight Holstein calves were co-infected orally and intranasally with a mixed inoculum of SARS-CoV-2 VOCs Delta and Omicron BA.2. Twenty-four hours post-challenge, two sentinel calves were introduced to evaluate virus transmission. The co-infection resulted in a high proportion of calves shedding SARS-CoV-2 RNA at 1- and 2-days post-challenge (DPC). Extensive tissue distribution of SARS-CoV-2 RNA was observed at 3 and 7 DPC and infectious virus was recovered from two calves at 3 DPC. Next-generation sequencing revealed that only the SARS-CoV-2 Delta variant was detected in clinical samples and tissues. Similar to previous experimental infection studies in cattle, we observed only limited seroconversion and no clear evidence of transmission to sentinel calves. Together, our findings suggest that cattle are more permissive to infection with SARS-CoV-2 Delta than Omicron BA.2 and Wuhan-like isolates but, in the absence of horizontal transmission, are not likely to be reservoir hosts for currently circulating SARS-CoV-2 variants.
期刊介绍:
Emerging Microbes & Infections is a peer-reviewed, open-access journal dedicated to publishing research at the intersection of emerging immunology and microbiology viruses.
The journal's mission is to share information on microbes and infections, particularly those gaining significance in both biological and clinical realms due to increased pathogenic frequency. Emerging Microbes & Infections is committed to bridging the scientific gap between developed and developing countries.
This journal addresses topics of critical biological and clinical importance, including but not limited to:
- Epidemic surveillance
- Clinical manifestations
- Diagnosis and management
- Cellular and molecular pathogenesis
- Innate and acquired immune responses between emerging microbes and their hosts
- Drug discovery
- Vaccine development research
Emerging Microbes & Infections invites submissions of original research articles, review articles, letters, and commentaries, fostering a platform for the dissemination of impactful research in the field.