Criado MF, Moresco KA, Stallknecht DE, Swayne DE. Low-pathogenicity influenza viruses replicate differently in laughing gulls and mallards. Influenza Other Respir Viruses. 2021 Jun 10
Wild aquatic birds are natural reservoirs of low-pathogenicity avian influenza viruses (LPAIVs). Laughing gulls inoculated with four gull-origin LPAIVs (H7N3, H6N4, H3N8, and H2N3) had a predominate respiratory infection. By contrast, mallards inoculated with two mallard-origin LPAIVs (H5N6 and H4N8) became infected and had similar virus titers in oropharyngeal (OP) and cloacal (CL) swabs. The trend toward predominate OP shedding in gulls suggest a greater role of direct bird transmission in maintenance, whereas mallards shedding suggests importance of fecal-oral transmission through water contamination. Additional infectivity and pathogenesis studies are needed to confirm this replication difference for LPAI viruses in gulls.
See Also:
Latest articles in those days:
- Evolutionary Events Promoted Polymerase Activity of H13N8 Avian Influenza Virus 6 hours ago
- Cross-Species Transmission Potential of H4 Avian Influenza Viruses in China: Epidemiological and Evolutionary Study 6 hours ago
- Wild Bird-Origin H6N2 Influenza Virus Acquires Enhanced Pathogenicity after Single Passage in Mice 7 hours ago
- Genetics of H5N1 and H5N8 High-Pathogenicity Avian Influenza Viruses Isolated in Japan in Winter 2021-2022 7 hours ago
- Avian H6 Influenza Viruses in Vietnamese Live Bird Markets during 2018-2021 7 hours ago
[Go Top] [Close Window]