PRO/AH/EDR> COVID-19 update (25): long COVID, mask wearing, Brazil, WHO, global

COVID-19 — Brazil
Abstract
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Reports of “Long-COVID”, are rising but little is known about prevalence, risk factors, or whether it is possible to predict a protracted course early in the disease. We analysed data from 4182 incident cases of COVID-19 who logged their symptoms prospectively in the COVID Symptom Study app. 558 (13.3%) had symptoms lasting 28 days or longer, 189 (4.5%) for 8 weeks or longer and 95 (2.3%) for 12 weeks or longer. Long-COVID was characterised by symptoms of fatigue, headache,