Moscow mayor introduces quarantine in 16 city districts amid bird flu outbreak The highly-pathogenic bird flu, also known as HPAI, is a deadly respiratory virus that affects wild birds and poultry. Read More at Source. Author: Pumilo Share this:TwitterFacebookMoreLinkedInRedditTumblrPinterestPocketTelegramWhatsAppSkypeLike this:Like Loading... Related Tags: BirdNews May 21, 2023 by Pumilo Bird News 0