Feb 14 (Reuters) - The U.S. Department of Agriculture

gave Zoetis ( ZTS ) conditional approval to use its bird flu

vaccine in poultry, the animal healthcare company said on

Friday.

A conditional approval, called as a conditional license, is

used for emergencies, limited market availability, or other

special circumstance and is issued for a finite period of time.

Bird flu has infected nearly 70 people in the United States,

with one death, since last April. Most of those infections have

been among farm workers exposed to infected poultry or cows.

Zoetis ( ZTS ), which deals with vaccines, medicines as well as

diagnostic solutions for animals, said the conditional license

was granted based on reasonable expectation of efficacy.