U.S. plan to stretch monkeypox vaccine supply already hitting hurdles The federal government's plans for fractional dosing of monkeypox vaccine assume that five doses can be extracted from a vial, but some local health officials are reporting that they can get only three or four doses. Helen Branswell STAT

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U.S. CDC recommends use of Novavax's COVID shot for adolescents The U.S. Centers for Disease Control and Prevention (CDC) on Monday signed off on the use of Novavax Inc's COVID-19 vaccine for adolescents aged 12 through 17. Reuters Reuters

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Are you among the 1 in 5 Americans with long COVID? Here’s what you need to know about how brain-foggy—and potentially dangerous—it is Experts are developing a better understanding of long COVID, including what it does to your energy levels, cognition, and even if it can be deadly. Fortune

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It’s hard to attribute a symptom to a condition like long COVID when that condition has yet to be clearly defined, experts say. ...

Omicron-specific Covid booster shots are just weeks away. Here’s who will—and won’t—be eligible

Newly updated Covid booster shots designed to target omicron’s BA.5 subvariant should be available within in the next three weeks. That begs an important question: Who’s going to be eligible to get them?

The short answer: Anyone ages 12 and up who has completed a primary vaccination series, a Centers for Disease Control and Prevention spokesperson tells CNBC Make It. It’s unlikely to matter whether you’ve received any other booster doses or not before, the spokesperson says — but if you’re unvaccinated, you won’t eligible for the updated formula until you complete a primary series with the existing Covid vaccines.

The longer answer is somewhat more complex, because it depends on which booster shots get approved and when. ...