Diseases, Conditions, Syndromes

How many people get 'long COVID?' More than half, researchers find

More than half of the 236 million people who have been diagnosed with COVID-19 worldwide since December 2019 will experience post-COVID symptoms—more commonly known as "long COVID"—up to six months after recovering, according ...

Diseases, Conditions, Syndromes

Vaccine protection wanes within 6 months: phone app study

Protection from two doses of the Pfizer and AstraZeneca vaccines wanes within less than six months, according to a study of phone app data Wednesday, suggesting that booster shots may be needed to ensure prolonged coverage.

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