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Scientific American

2021-11-29, 13:12
Do Childhood Colds Help the Body Respond to COVID?


A mechanism known as “original antigenic sin” protects some people from flu. Whether it helps immune reactions to coronaviruses is still unclear



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https://www.scientificamerican.com/artic...-to-covid/
www.chinaphonearena.com > Off The Wall > Tech & Science > [Sci-Am] Do Childhood Colds Help the Body Respond to COVID?