Canadian teenager in critical condition with presumptive bird flu as U.S. official warns the virus 'seems to be gearing up for wider impact' Health officials were struggling to answer a broader and potentially worrisome question: how the infection occurred. Carolyn Barber Fortune

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“This case is very concerning for a number of reasons,” says Rick Bright, an American immunologist and vaccine researcher and a U.S. government health official from 2016 to 2020. “It’s in an otherwise healthy teenager. Like a similar case in Missouri, there’s no clear source for infection and no direct farm connection.”

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Exxon CEO says Trump should keep U.S. involved in global effort to address climate change

President-elect Donald Trump should keep the U.S. involved in global efforts to address climate change, Exxon Mobil CEO Darren Woods said Tuesday.

Paxlovid cuts COVID hospitalization, death risk and speeds symptom relief, studies find Overall, the risk of developing 28 out of 36 long-COVID symptoms lessened when vaccines were effective. CIDRAP

New findings from two studies have tied use of the antiviral drug nirmatrelvir-ritonavir (Paxlovid) to a reduction in COVID-19 hospitalizations and death, as well as to faster resolution of symptoms and less use of healthcare resources.

Benefit seen only in older patients

H5N1 bird flu is evolving to better infect mammals, CDC study suggests Rising H5N1 bird flu cases in the U.S. prompted the CDC to study the virus in ferrets, revealing it may have the potential to spread and cause severe symptoms in other mammals. Kamal Nahas Live Science

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