Study found that the median duration of infectivity for the Omicron variant of SARS-CoV-2 in children is three days, regardless of vaccination status. The findings suggest that current 5-day isolation policies are supported, but vaccination or booster status need not be considered in return-to-school guidelines.
To regrow blood vessels after heart attack, a little transplant of mitochondria goes a long way in mice
Blood vessels in the legs or heart sustain considerable damage when they are narrowed by poor circulation from diabetes or blocked in a heart attack.
May 1, 2024