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#virus

13 posts12 participants2 posts today

I came here to see if anyone interacted with me lately (replies are still enjoyable to read here) and what showed up before I had a chance to switch from the default screen was someone actually using the phrase, “Louder, for the people in the back” and then talking about fighting for a better world or some such.

I wonder if that person wears an #N95 respirator to prevent infection with a brain-damaging airborne #virus. Odds are, they’re not, though asking directly is a no-no.

"Recently, this common virus has been implicated in neurodegenerative diseases, such as Alzheimer's disease, but no clear route of central nervous system invasion has been established," said Christy Niemeyer, PhD. "Identifying how HSV-1 can get into the brain and what brain regions are vulnerable is key in understanding how it initiates disease."

#herpes #brain #science #biology #health #meidcine #virus

labroots.com/trending/microbio

bioRxiv · The avian and human influenza A virus receptors sialic acid (SA)-α2,3 and SA-α2,6 are widely expressed in the bovine mammary glandAn outbreak of H5N1 highly pathogenic influenza A virus (HPIAV) has been detected in dairy cows in the United States. Influenza A virus (IAV) is a negative-sense, single-stranded, RNA virus that has not previously been associated with widespread infection in cattle. As such, cattle are an extremely under-studied domestic IAV host species. IAV receptors on host cells are sialic acids (SAs) that are bound to galactose in either an α2,3 or α2,6 linkage. Human IAVs preferentially bind SA-α2,6 (human receptor), whereas avian IAVs have a preference for α2,3 (avian receptor). The avian receptor can further be divided into two receptors: IAVs isolated from chickens generally bind more tightly to SA-α2,3-Gal-β1,4 (chicken receptor), whereas IAVs isolated from duck to SA-α2,3-Gal-β1,3 (duck receptor). We found all receptors were expressed, to a different degree, in the mammary gland, respiratory tract, and cerebrum of beef and/or dairy cattle. The duck and human IAV receptors were widely expressed in the bovine mammary gland, whereas the chicken receptor dominated the respiratory tract. In general, only a low expression of IAV receptors was observed in the neurons of the cerebrum. These results provide a mechanistic rationale for the high levels of H5N1 virus reported in infected bovine milk and show cattle have the potential to act as a mixing vessel for novel IAV generation. Graphical abstract Created with [Biorender.com][1] ![Figure][2]</img> ### Competing Interest Statement The authors have declared no competing interest. [1]: http://Biorender.com [2]: pending:yes

More than 50 people in seven U.S. states have had confirmed cases of a human bird flu variant, concerning health experts that another pandemic could be possible. This week, a child in California with no known contact with infected animals came down with the virus. CBSNews@flipboard.com medical contributor Dr. Céline Gounde explains why this is a worrying development and answers other questions about bird flu.

flip.it/6gvHiW

flip.itWhy the latest bird flu case has experts worried about a potential pandemicA new case of bird flu in a California child without known contact with infected animals is raising concerns about a potential pandemic. Dr. Céline Gounder explains what to know.

Bird flu in Canada

Bird flu in Canada may have mutated to become more transmissible to humans theguardian.com/world/2024/nov 'The US “absolutely” is not testing and monitoring bird flu cases enough, which means scientists could miss mutated cases like these, said Richard Webby, a virologist at St Jude children’s research hospital’s department of infectious diseases.' #birdflu #virus