Data: Optimal initiation of Paxlovid in hospitalized COVID patients is 3 to 5 days Taking the SARS-CoV-2 antiviral drug nirmatrelvir-ritonavir (Paxlovid) 3 to 5 days after COVID-19 symptom onset—not earlier or later—may result in the greatest reduction in viral loads, viral transmission, and viral rebound in hospitalized patients, a University of Hong Kong–led study finds. CIDRAP

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New study uses AI to predict malaria outbreaks in South Asia (medicalxpress.com)

Researchers from NDORMS in collaboration with international institutions have demonstrated the potential of using environmental measurements and deep learning modeling to predict malaria outbreaks in South Asia. The study offers promising insights into improving early warning systems for one of the world's deadliest diseases.

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NASA chief asks nations to work together on climate change NASA is hoping that nations will work together more closely in the future on topics such as climate change, including greenhouse gas emissions, the space agency's head, Bill Nelson, said on Tuesday. Stefanie Eschenbacher Reuters

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Q&A: Climate change and health care—how individuals and institutions can help

Unseasonably mild winters. Forest fires and smoke. More reports of catastrophic storms. We've experienced increasingly extreme weather changes in the past few years, and the intersection between environmental issues and health is a pressing concern.

Myles Sergeant is an assistant clinical professor in McMaster's Department of Family Medicine who is deeply involved in efforts locally, provincially and nationally to reverse the effects of climate change. ...

We spoke with Sergeant about the dangers of climate change, the power individuals and the health care sector have to make more sustainable choices, and why he hasn't lost hope to save our "frail planet."

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