But after Health and Human Services officials announced their proposal on Aug. 4, Paul Chaplin, chief executive of Bavarian Nordic, the vaccine’s manufacturer, called a senior U.S. health official and accused the Biden administration of breaching its contracts with his company by planning to use the doses in an unapproved manner. Even worse, said two people with knowledge of the episode, Chaplin threatened to cancel all future vaccine orders from the United States, throwing into doubt the administration’s entire monkeypox strategy.
“People are begging for monkeypox vaccines, and we’ve just pissed off the one manufacturer,” said one official who spoke on the condition of anonymity because they were not authorized to comment.