Are Covid vaccines becoming less effective?
September 01, 2021 at 01:45 AM EDT
Covid-19 vaccines are still "stunningly effective" despite fears that immunity may dwindle over time, experts have said.
 |
||||||||||||
|
||||||||||||
| About Us | Contact Us | Privacy Policy | User Agreement | Advertise With Us | Site Map | ||||||||||||
Photos copyright by Jay Graham Photographer
