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Professor of Biology & Institute for Health Computing, U of Maryland; explores how viruses impact human & environmental health; 'Asymptomatic' (JHU Press - https://bit.ly/asymptomatic_book) & 'Science Matters' (https://substack.com/@joshuasweitz)
Joshua Weitz






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NEW: Regulators have linked Mark McAfee’s raw dairy farm to more than a dozen recalls and outbreaks that left hundreds of people ill. “I’ve put a couple kids in the hospital,” McAfee said. “But here’s the thing: I’m a pioneer.”
5/ Experts point to several factors for why it came back: 1️⃣Cattle smuggling outside control zones 2️⃣In early 2025, roughly 15,000 USDA positions were eliminated, and a USAID-funded monitoring project was terminated 3️⃣ The loss of specialized expertise as generations of entomologists retire