Reasons for the potential spread of avian influenza include which of the following? A. Intensive animal husbandry practices B. Restriction of international travel C. Demonstrated person-to-person transmission D. Both restriction of international travel and demonstrated person-to-person transmission E. All of these are correct.

Answer: Option (A)

Explanation:

Avian influenza is referred to as or known as the disease which is often caused or spread by the infection related with avian influenza Type A viruses also known as bird flu. These viruses often tend to occur naturally mostly among the wild aquatic birds available worldwide and thus can infect the domestic poultry and several other animal and bird species. These viruses do not tend to normally infect any human.