Re: CDC lists 52 confirmed cases of dairy influenza in humans

On 11/15/2024 7:33 PM, RonO wrote:

https://www.cdc.gov/bird-flu/situation-summary/index.html
 It looks like the CDC added 5 more cases from California and 1 more case for Washington.  They are also claiming that there was one positive case submitted from California that could not be confirmed at the CDC and 3 cases submitted of Poultry workers from Washington that could not be confirmed by the CDC.  Total is now 52.
 The CDC is continuing to not add the seropositive (evidence of past infection) dairy workers and the close contact of the Missouri patient as being infected.  That would add 11 more to the total.
 Ron Okimoto
 

It wasn't one more case in Washington, but an Oregon poultry worker.
https://www.cidrap.umn.edu/avian-influenza-bird-flu/oregon-reports-first-h5-case-farm-worker-california-reports-5-more
The CDC is counting this as a dairy virus infection, but the Oregon report did not identify the virus as the dairy H5N1.  The previous poultry flocks in Oregon had been infected by another strain of H5N1 found in migratory fowl.
The Oregon health department should do contact tracing from the infected flock to find out what worker brought in the dairy virus to the poultry flock.  That worker may have come from Washington or California, but it may be a local dairy that is infected.  In all the other cases the poultry farms got infected by local dairies that had workers that also worked on poultry farms.  The most recent example of this was Utah that found 8 local dairies infected after the poultry farm went down.
Ron Okimoto