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Infectious Updates 5/10/2025 [1]
['This Content Is Not Subject To Review Daily Kos Staff Prior To Publication.']
Date: 2025-05-10
Schoolchildren quarantined in North Dakota, several measles cases.
Mexico is grappling with the same problems of misinformation and distrust of vaccines as the US. Their outbreak is as large as ours. Canada's is larger. And insular religious communities are at the heart of all three.
Combined flu-Covid vaccine shows good immune responses and safety.
Long Covid patients show signs of inflammation on scans
A multistate Salmonella outbreak seems to be tied to backyard poultry purchased from agricultural outlet stores.
Testing on H5N1 samples has not changed the risk assessment much. So they say. But they used to say low and now they say moderate. CIDRAP
In the first study, a team from the CDC examined a conjunctival sample isolated from a dairy worker infected with H5N1 in Michigan. They described their findings in a research letter in Emerging Infectious Diseases. In experiments with ferrets inoculated with the virus, they found that the virus could spread by the airborne route in the animals, causing a moderate infection that was less virulent compared with earlier similar experiments with a virus isolated from a Texas dairy worker. In the second study, to assess potential H5N1 susceptibility in pigs, scientists with the National Institutes for Allergy and Infectious Diseases (NIAID) experimentally infected eight pigs with a bovine B3.13 H5N1 isolate through different routes that mimicked natural exposure. They published their preprint findings in Nature Portfolio. Pigs developed subclinical or mild disease and continued to gain weight during recovery. Virus replication mainly occurred in respiratory tissues, with shedding that occurred in the upper airway tract. To test transmission, they put infected pigs in pens with uninfected animals, finding evidence of pig-to-pig transmission. The group said the susceptibility and occasional transmission they identified are worrisome from a public health perspective, given that pigs are susceptible to both mammalian and avian influenza virus, making them a mixing vessel for new reassortants.
Excess weight is linked to some long Covid symptoms. The reason is unclear
African nations are trying to coordinate their responses to a severe cholera outbreak (same link)
And a few other quick notes
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