#avian-influenza

#avian-influenza

Bay Area peregrine falcon numbers began plummeting after a massive, global outbreak of avian flu in 2020, the study documents, with only about a third of the nesting sites still in use as of 2025. The news, while dire, nevertheless helps scientists understand how the disease is impacting local populations, and what we can expect for their recovery.

Risks of outbreaks with pandemic potential rise with increasing land-use change, biodiversity loss and climate change. The Pandemic Agreement adopted by the World Health Assembly in 2025 marks a historic shift that establishes the One Health approach as a legally binding obligation for pandemic prevention.

Bats carry a lot of very deadly pathogens like Ebola virus, Nipah, Hendra, coronavirus, and also rabies virus. People are finding more and more bat-borne viruses. When such viruses are transmitted to humans, the results are often fatal so there's a lot of interest in trying to prevent spillover in the first place.

Nearly half of the 261 species studied showed big enough losses in numbers to be statistically significant and more than half of those declining are seeing their losses accelerate since 1987, according to Thursday's journal Science. The study is the first to look at more than the total bird population by examining the trends in their decrease, where they are shrinking the most and what the declines are connected to.

In a study published in Science Advances, researchers in China fed Aedes aegypti mosquitoes blood that contained either a vaccine against Nipah virus or the rabies virus. The viruses, contained in the vaccines, replicated inside the insects and reached their salivary glands, allowing them to pass on the vaccine when feeding on bats or when the bats ate the insects.

Highly pathogenic avian flu, or bird flu, has been confirmed in the Emerald Necklace. Risk of human infection is currently low. As always, please do not feed, touch, or remove birds from Boston parks.

This is exceptionally rapid detection of an outbreak in free-ranging marine mammals, said professor Christine Johnson, director of the Institute for Pandemic Insights at UC Davis' Weill School of Veterinary Medicine. We have most likely identified the very first cases here because of coordinated teams that have been on high alert with active surveillance for this disease for some time.

SAN FRANCISCO (KGO) -- Health departments across California are sounding the alarm about a highly contagious bacterial disease that can be deadly in dogs if not treated. And in rare cases, it can spread to humans. It's called leptospirosis -- and it's actively spreading right now in the Bay Area and parts of the state, including Los Angeles. 7 On Your Side's Stephanie Sierra's dog, Bubba, contracted the disease and fought it for weeks.

Each day, they pore over reams of data about how the virus is evolving worldwide, how well last year's shot performed, and which strains might be easiest to mass produce for a vaccine. The meeting, convened by the World Health Organization twice a year, is a critical moment for the WHO's Global Influenza Surveillance and Response System.

If you feel like everyone you know is dealing with a cough, cold and runny nose, it's not in your head. Multiple viruses, not just the flu, are currently circulating near season-high levels in the San Francisco Bay Area, according to wastewater data. Flu tests show seasonal influenza activity continues to be elevated in the region, although it's down from the season-high peak at the end of December, according to the California Department of Public Health.

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