Protection from COVID reinfections plummeted from 80% to 5% with omicron
New study shows why annual COVID boosters are critical to controlling COVID.
https://arstechnica.com/health/2025/02/protection-from-covid-reinfections-plummeted-from-80-to-5-with-omicron/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social
Protection from COVID reinfections plummeted from 80% to 5% with omicron

New study shows why annual COVID boosters are critical to controlling COVID.

Ars Technica
Immune escape is expected. Up to date vaccines can give some protection. Masks, hand washing, HEPA air filtration, and other methods can also help.

@ForestOrca
#PostOfTheWeek (season 2):
With the rise of omicron came the fall of long-lasting protection from reinfection with the pandemic coronavirus SARS-CoV-2, according to a study published in Nature.

Using population-wide data from Qatar, researchers found that a COVID-19 infection from a pre-omicron variant of SARS-CoV-2 (such as alpha or delta) yielded around 80 percent protection from reinfection with another pre-omicron variant.