U.S.'s Azar says any U.S. vaccine would be shared once U.S. needs met

U.S. Secretary of Health and Human Services Alex Azar is seen on a screen as he speaks during a news conference in Taipei, Taiwan, August 10, 2020. REUTERS/Ann Wang

TAIPEI (Reuters) - U.S. Health Secretary Alex Azar said on Monday that any U.S. vaccine or treatment for COVID-19 would be shared fairly with the rest of the world, once the U.S. need has been satisfied.

There are more than 200 COVID-19 vaccine candidates in development around the world, including more than 20 in human clinical trials. U.S. President Donald Trump has vowed to have a shot ready before year's end, though they typically take several years to develop and test for safety and effectiveness.