- Repeat COVID Infections Could Be Deadly, Study Says Greek Reporter
- Global SARS-CoV-2 infection rates likely to be higher than previously reported News-Medical.Net
- Post-COVID-19-associated morbidity in children, adolescents, and adults: A matched cohort study including more than 157000 individuals with COVID-19 in Germany PLOS
- COVID-19 reinfections substantially increase risk of death and Long COVID WSWS
- Repeat COVID is riskier than first infection, study finds Geo News
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