Natalie Lambert, an associate research professor at Indiana University School of Medicine, surveyed thousands of "long-hauler" Covid-19 patients, finding that specific symptoms tend to emerge at regular intervals — usually a week or 10 days — resulting in what she calls "waves of symptoms."
MILAN (AP) — Russia has signed a deal to produce its Sputnik V coronavirus vaccine in Italy, the first contract in the European Union, the Italian Russian Chamber of Commerce announced Tuesday.
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