In a recent study published in the Emerging Infectious Diseases journal, researchers at Madigan Army Medical Center assessed the characteristics of monkeypox infection in a patient vaccinated against smallpox.

In Summer 2022, the Centers for Disease Control and Prevention (CDC) initiated an emergency response after the outbreak of monkeypox infections across the US. In addition, on 28 June 2022, the US Department of Health and Human Services (HHS) announced a vaccination strategy against the monkeypox virus to be implemented across the country.