Mexico could begin testing a Russian-licensed coronavirus vaccine as early as next month.
The country said Thursday it will receive at least 2,000 doses of the vaccine.
Russia became the first country to license a vaccine last week when President Vladimir Putin announced its approval, although only a few dozen people have tested the vaccine.
The World Health Organization is withholding approval because the Russian vaccine has not passed the extensive trials usually required before a vaccine is licensed.
Mexico is also working with vaccine producers in Britain, the United States and China to acquire a vaccine soon as possible for its people.
Mexico has confirmed more than 540,000 coronavirus cases, and more than 59,000 people have died.