The original antigenic sin: How childhood infections could shape pandemics

A child's first influenza infection shapes their immunity to future airborne flu viruses - including emerging pandemic strains. But not all flu strains spur the same initial immune defense, according to new findings published today. The results are relevant to the COVID-19 pandemic, according to the senior author, who says they may explain age-based distributions of SARS-CoV-2 disease severity and susceptibility.

from Latest Science News -- ScienceDaily https://ift.tt/3bdErqo

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