Post Reply - H2H-H5N1 spread in US

Rick Bright reposted
Gail R Hansen
@Gailhansendvm
·
5h
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Avian flu infects two more Colorado poultry workers, one at second farm. 10 US human cases since spring.

https://flutrackers.com/forum/forum/united-states/h5n1-tracking-af/991361-us-h5n1-human-case-list?view=stream or https://flutrackers.com/forum/forum/united-states/h5n1-tracking-af/991361-us-h5n1-human-case-list?view=stream will be updated....

https://afludiary.blogspot.com/2024/07/colorado-doh-reports-their-7th.html or https://afludiary.blogspot.com/2024/07/colorado-doh-reports-their-7th.html ;

Late last week the CDC Confirmed 5th & 6th Human H5 Infection From Poultry Farm In Colorado and we learned of a 2nd poultry farm - also in Weld County - that had been infected (see CIDRAP report H5N1 strikes another large layer farm in Colorado).
Over the weekend there have been local media reports of a 7th presumptive positive case among poultry workers, and this morning the Colorado Health Department is reporting that case was detected at the 2nd poultry farm.
-
https://www.cidrap.umn.edu/avian-influenza-bird-flu/avian-flu-infects-two-more-colorado-poultry-cullers-one-second-farm or https://www.cidrap.umn.edu/avian-influenza-bird-flu/avian-flu-infects-two-more-colorado-poultry-cullers-one-second-farm 

DJ-No further info on H2H spread. It looks like the cattle-poultry-humans "trajectory" however may have resulted in a H5N1 variant better in infecting humans...

Rick Bright
@RickABright
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New @H5N1
 sequence from human isolate collected 7/15/24 from farm worker in CO shared (w/ metadata) by @CDCFlu
 (EPI_ISL_19280426) in @GISAID
. 
Looks nearly identical to human isolate from same farm, collected 7/11.
H/t to @CDCFlu
 for rapid sharing of data w/ metadata (hint, @USDA
)
Latest trees available at https://gisaid.org/resources/gisaid-in-the-news/highly-pathogenic-avian-influenza-outbreak-in-the-united-states/…
@RajlabN
 @PeacockFlu
 @0bj3ctivity
DJ, So the same H5N1-"variant" may be spreading on TWO Colorado poultry farms and "doing a good job infecting humans"...

This will spread !