Bird flu has now spread to dairy cow herds and infected a worker. Is Pa. at risk? – Penn Live Wild birds are known to be the source of the virus in poultry. Infected wild birds have been confirmed in Pennsylvania and surrounding states as … Read More at Source. Author: Pumilo Share this:TwitterFacebookMoreLinkedInRedditTumblrPinterestPocketTelegramWhatsAppLike this:Like Loading... Related Tags: Wild Birds April 11, 2024 by Pumilo Wild Birds 0