tetano
Editor, Senior Moderator
Ecol Appl. 2019 Nov 22. doi: 10.1002/eap.2040. [Epub ahead of print] [h=1]Avian influenza virus prevalence in marine birds is dependent on ocean temperatures.[/h]
Hall JS[SUP]1[/SUP], Dusek RJ[SUP]1[/SUP], Nashold SW[SUP]1[/SUP], TeSlaa JL[SUP]1[/SUP], Allen RB[SUP]2[/SUP], Grear DA[SUP]1[/SUP].
[h=3]Author information[/h] 1 USGS National Wildlife Health Center, 6006 Schroeder Rd. Madison, Wisconsin, 53711. 2 Maine Department of Inland Fisheries and Wildlife, Bangor, Maine, 04491.
[h=3]Abstract[/h] Waterfowl and shorebirds are the primary hosts of influenza A virus (IAV), however, in most surveillance efforts large populations of birds are not routinely examined, specifically marine ducks and other birds that reside predominately on or near the ocean. We conducted a long-term study sampling sea ducks and gulls in coastal Maine for IAV and found a virus prevalence (1.7%) much lower than is typically found in freshwater duck populations. We found wide year-to-year variation in virus detection in sea ducks and that the ocean water temperature was an important factor affecting IAV prevalence. In particular, the ocean temperature that occurred 11 days prior to collecting virus positive samples were important while water temperature measured concurrently with host sampling had no explanatory power for viral detection. We also experimentally showed that IAV is relatively unstable in sea water at temperatures typically found during our sampling. This represents the first report of virus prevalence and actual environmental data that helps explain the variation in marine IAV transmission dynamics.
? 2019 by the Ecological Society of America.
[h=4]KEYWORDS:[/h] avian influenza; gulls; marine birds; ocean temperature; sea ducks; stability; transmission; virus prevalence
PMID: 31755623 DOI: 10.1002/eap.2040
Hall JS[SUP]1[/SUP], Dusek RJ[SUP]1[/SUP], Nashold SW[SUP]1[/SUP], TeSlaa JL[SUP]1[/SUP], Allen RB[SUP]2[/SUP], Grear DA[SUP]1[/SUP].
[h=3]Author information[/h] 1 USGS National Wildlife Health Center, 6006 Schroeder Rd. Madison, Wisconsin, 53711. 2 Maine Department of Inland Fisheries and Wildlife, Bangor, Maine, 04491.
[h=3]Abstract[/h] Waterfowl and shorebirds are the primary hosts of influenza A virus (IAV), however, in most surveillance efforts large populations of birds are not routinely examined, specifically marine ducks and other birds that reside predominately on or near the ocean. We conducted a long-term study sampling sea ducks and gulls in coastal Maine for IAV and found a virus prevalence (1.7%) much lower than is typically found in freshwater duck populations. We found wide year-to-year variation in virus detection in sea ducks and that the ocean water temperature was an important factor affecting IAV prevalence. In particular, the ocean temperature that occurred 11 days prior to collecting virus positive samples were important while water temperature measured concurrently with host sampling had no explanatory power for viral detection. We also experimentally showed that IAV is relatively unstable in sea water at temperatures typically found during our sampling. This represents the first report of virus prevalence and actual environmental data that helps explain the variation in marine IAV transmission dynamics.
? 2019 by the Ecological Society of America.
[h=4]KEYWORDS:[/h] avian influenza; gulls; marine birds; ocean temperature; sea ducks; stability; transmission; virus prevalence
PMID: 31755623 DOI: 10.1002/eap.2040