28. 3. 202170 zhlédnutíThanks for watching guys! If you like what you saw, I would appriciate a subscription a lot. Don't forget to like, and share it with your friends. If you hav...
2. 2. 202025 tis. zhlédnutíH5N1 is a type of influenza virus that causes a highly infectious, severe respiratory disease in birds called avian influenza (or "bird flu"). #H5N1 #BirdFlu...