“When you're infected with #measles, your immune system abruptly forgets every pathogen it's ever encountered before – every cold, every bout of flu, every exposure to bacteria or viruses in the environment, every vaccination. The loss is near-total and permanent. Once the measles infection is over, current evidence suggests that your body has to re-learn what's good and what's bad almost from scratch. “

bbc.com/future/article/2021111…

Measles: The race to understand 'immune amnesia'

Scientists have known for years that measles can alter the immune system – but the latest evidence suggests it's less of a mild tweaking, and more of a total reset.

^{Zaria Gorvett (BBC)}