If bird flu spreads to people, existing vaccines may be inadequate – NBC News Scientists have long worried about a bird flu pandemic. Experts say vaccines in the U.S. stockpile might be insufficient if the strain now killing … Read More at Source. Author: Pumilo Share this:TwitterFacebookMoreLinkedInRedditTumblrPinterestPocketTelegramWhatsAppLike this:Like Loading... Related Tags: BirdNews May 21, 2023 by Pumilo Bird News 0