Effectiveness of the Modified Vaccinia Ankara Vaccine Against Mpox in Men Who Have Sex With Men: A Retrospective Cohort Analysis, Seattle, Washington.
Meena S RamchandaniAnna BerzkalnsChase A CannonJulia C DombrowskiElizabeth BrownEric J ChowElizabeth BarashSargis PogosjansDaniel SmithMatthew R GoldenPublished in: Open forum infectious diseases (2023)
These data support the effectiveness of the MVA vaccine-including a single dose of the vaccine-in preventing mpox disease and highlight the appropriateness of risk factor-based prioritization of immunization early in the epidemic. The durability of MVA vaccine-induced immunity is unknown, and at-risk persons should receive 2 doses of MVA.