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Posted: **Wed Jul 06, 2022 10:34 am**

: 2 True Or False Influenza A Is Usually Asymptomatic In Wild Aquatic Birds But Can Be Very Contagious And Pathogenic A 1 (28.14 KiB) Viewed 14 times

: 2 True Or False Influenza A Is Usually Asymptomatic In Wild Aquatic Birds But Can Be Very Contagious And Pathogenic A 2 (25.49 KiB) Viewed 14 times

2. True or false: Influenza A is usually asymptomatic in wild aquatic birds, but can be very contagious and pathogenic among domesticated turkeys and chickens. The H5N1 subtype of Influenza A can infect humans and generally spreads very easily among humans. The host receptor protein for Influenza A viruses is Sialic acid/Neuraminic acid (see figure on pg. 100 for review) Numerous wild birds migrate between Asia and North Amerika every year.
4. True or false; The most common viral infections in humans are caused by viruses that enter through the respiratory and genital tracts. Viruses that cross the placenta can cause congenital defects in newborns. The average person in a ventilate building will inhale more than 11,000 microorganisms every hour. I The alveolar sacs in the lungs do not generally contain mucus or ciliated cells.