The Us has ordered 13 million additional doses of the monkeypox vaccine after a Massachusetts man contracted the rare — but potentially severe — virus, officials said Thursday.

The massive $119 million order of Jynneos jabs — which can be used to treat both the monkeypox virus and smallpox — was created by the biotechnology company Bavarian Nordic, according to Newsweek.

In 2015, the Centers for Disease Control and Prevention and the Food and Drug Administration approved the use Jynneos as a vaccine for the rare virus.