Health officials announced on Friday that the White House has ordered 500,000 more doses of a vaccine believed to be effective against monkeypox. Dawn O’Connell, assistant secretary for preparedness and response for the Department of Health and Human Services, announced during a press briefing that the U.S. had ordered half a million liquid, frozen doses of the Jynneos smallpox vaccine. MORE.. The order, announced on Friday, is expected to be delivered later this year. O’Connell also stated that the U.S.’s Strategic National Stockpile (SNS) currently has 72,000 doses of Jynneos in its immediate inventory, and an additional 300,000 are expected to arrive in the next few weeks. Apart from Jynneos, the SNS also has more than 100 million doses of the ACAM2000 smallpox vaccine, though health officials noted that there has been a preference for Jynneos.