November 21, 20202 min read, 463 words
A childhood vaccine available since 1979 has been linked to less severe COVID-19 but smoking cigarettes raises risk
Published: November 21, 2020 | 2 min read, 463 words
The words "Business Insider".Two crossed lines that form an 'X'. It indicates a way to close an interaction, or dismiss a notification.People whose immune systems responded strongly to a measles-mumps-rubella (MMR) vaccine may be less likely to become severely ill if they are inf...