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From: RonO <rokimoto557@gmail.com>
Newsgroups: talk.origins
Subject: Re: Minnesota dairy herd infected for the second time
Date: Fri, 28 Mar 2025 14:03:08 -0500
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On 3/27/2025 4:40 PM, RonO wrote:
> On 3/25/2025 6:33 PM, RonO wrote:
>> https://www.cidrap.umn.edu/avian-influenza-bird-flu/minnesota-milk- 
>> surveillance-flags-h5n1-dairy-herd
>>
>> A dairy herd in Minnesota that was confirmed to be infected in July 
>> 2024, but has likely been clear of the virus for several months has 
>> been infected again.  They do not know what genotype of H5N1 is 
>> infecting the herd.  Another herd in California also was confirmed to 
>> be positive.
>>
>> They still have not disclosed the genotypes of the recent Idaho and 
>> California infections.  At this time both the B3.13 and the D1.1 virus 
>> has been found in Dairy herds (D1.1 in Arizona and Nevada)
>>
>> Ron Okimoto
>>
> 
> https://www.aphis.usda.gov/livestock-poultry-disease/avian/avian- 
> influenza/hpai-detections/hpai-confirmed-cases-livestock
> 
> Another California dairy has been added to the database.  3 Idaho, 2 
> Calif., and 1 Minnesota herd for this week, but no news on what genotype 
> is infecting these herds since Feb.  For some reason they stopped 
> disclosing the genotype when it could be either D1.1 (recent 
> introduction from wild birds) or the B3.13 dairy virus.
> 
> The USDA disclosed the last two Nevada genotypes almost immediately 
> (confirmed 2/25) as being D1.1, but since then they have not been 
> disclosing the infecting genotype for the last 9 Idaho herds, 9 
> California herds, and 1 Minnesota herd.
> 
> Ron Okimoto
> 

https://www.cdfa.ca.gov/AHFSS/Animal_Health/HPAI.html

California is increasing the number of dairy herds infected, but they 
are not saying what genotype is infecting the newly infected herds. 
They are now claiming that 492 herds have been released from quarantine 
(up from 422 last week).  Some of those cleared herds can start to be 
reinfected like Minnesota if the quarantine does not include 
restrictions on dairy worker movements.

Ron Okimoto