Question

question 9 (2 points)
why is avian influenza (\bird flu\, h5n1) considered an \emerging disease\ whereas hiv is not?
bird flu has not infected as many people as hiv
bird flu has infected more people than hiv
bird flu is bacterial based whereas hiv is viral based
bird flu is more deadly that hiv
bird flu is a disease that has only been recognized in the past 20 years

Explanation:

Emerging diseases are those that have newly appeared in a population or have been known but are rapidly increasing in incidence or geographic range. Avian influenza (H5N1) has only been widely recognized in the past few decades, fitting the definition of an emerging disease, while HIV has been known for a longer - time and has already had a large - scale global impact. Both are viral diseases, and severity and number of infections don't define an emerging disease in this context.

Answer:

Bird flu is a disease that has only been recognized in the past 20 years