Vaccines aren't 100 percent effective. Sometimes, our immune system doesn't mount a strong enough response to an immunization, so defenses are down when a pathogen invades.
More/Video
DelMarVa's Premier Source for News, Opinion, Analysis, and Human Interest Contact Publisher Joe Albero at alberobutzo@wmconnect.com or 410-430-5349
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.