Re: New Mexico H5N1 dairy infection mystery

On 4/4/2025 2:51 PM, JTEM wrote:

On 4/4/25 3:21 PM, RonO wrote:
 

Another news article on the inadequate response to the dairy influenza epidemic that infected a lot of poultry farms.

 This is the flu that should have rampaged all over Central & South
America months ago, if it was real. Because that's how a bird flu
that is natural, came from nature works:  It can infect even birds
that fly & migrate!
 But this one is so special it's not destroyed by cooking... it's
in the cat food!
 Oh, wait, weren't you pretending that raw meat is sold commercially
as car food now?
  

If you had a clue you would know that H5N1 had already spread down into Chile killing sea mammals and birds almost a year before the dairy infection was noticed in Texas in March 2024.  The Asian H5N1 entered North America in 2022 and quickly followed the migration routes into South America.  The B3.13 dairy genotype and the D1.1 genotype are reassorted virus.  For B3.13 it recombined with 2 other North American strains of avian influenza and is only around half the same genetics as the original Asian H5N1.  The D1.1 genotype is also a reassorted virus and has even less of the original Asian genome.  It has the same H5 allele, but the N1 allele comes from a North American strain of the virus.  It is still classified as H5N1, but the N1 gene is distantly related to the Asian N1 gene.  The virus is behaving just as it was excpected to.
The news reports that you snipped out and ran from in previous threads told you that raw cat food is sold as pet food.  Two different west coast pet food manufacturers sold raw pet food contaminated with the virus.  One claimed that it had only used chicken purchased from a local farm, and the other claimed that it had used raw turkey and beef bones in the virus contaminated food so they do not know if the virus came from turkeys or cattle, but it was the B3.13 dairy virus genotype in both cases.
Ron Okimoto