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COVID-19 immune responses diminished after reconvalescence

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Some potential challenges with regard to immunity. Most patients infected with SARS-CoV-2 showed diminished IgGs (antibodies produced against the virus) after ~2 months of after discharge from the hospital. About 40% became seronegative (no antibodies against SARS-CoV-2 detected).



This might put a dent into hopes that infected folks remain immune for an extended amount of time and could make vaccinations more critical. The study was based on 37 symptomatic and 37 asymptomatic patients, so more studies are going to be critical.

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