03/01/2026
Bird flu still poses a low‑probability threat of sustained human transmission. But that doesn't make the virus harmless.
The H5 viruses are brutally lethal to birds – 9 million have died outright, and hundreds of millions have been culled to contain the spread. Alarming is the virus's expanding reach into mammals. So far, at least 74 mammal species, from elephant seals to polar bears, have suffered die‑offs.
The individual cases are situated within a broader shift. Dense poultry farms create opportunities for the virus to hop species. Over a thousand US dairy herds have tested positive in the past two years, and viral fragments have even been detected in milk – a worrying route of spillover. Every jump is a probe for new footholds.
https://www.sciencealert.com/the-world-is-sleeping-on-bird-flu-expert-warns
There's an unwritten rule in publishing, or so I've been told: Don't write about COVID.