Author Question: Newcastle disease (often referred to as avian distemper) is one of the most serious of all avian ... (Read 73 times)

bobbie · **on:** Jul 22, 2018

Newcastle disease (often referred to as avian distemper) is one of the most serious of all avian diseases. Which of the following apply to this disease?

A. The virus is highly contagious and can spread in droppings or through nasal discharges
B. The virus can penetrate eggshells and infect embryos
C. The virus can survive outside the hosts for weeks
D. All of the above
E. A and C above

Question 2

The average life expectancy of humans in the United States increased from approximately 49 years in 1900 to 77 in 2000 . Concurrently, life expectancy of companion animals increased significantly. Just as interest in senescence and the aging process of humans increased, so has people's interest in the geriatrics of companion animals.

A. True
B. False