CDC Urges High-Risk Groups to Get Fully Vaccinated Against Mpox Amid Fears of Summer Surge

The JYNNEOS vaccine was highly effective at preventing mpox infection, with two doses being 86% effective overall according to a CDC study.
CDC officials are warning that mpox cases may increase in the coming months and are urging at-risk populations to get vaccinated ahead of summer events.
Three recent studies found that two doses of the Jynneos vaccine offer significantly more protection than one, with effectiveness ranging from 66% to 88%.
A cluster of 21 mpox cases in Chicago this month raised concerns about waning immunity and the possibility of future outbreaks, especially among men who have sex with men.
Less than a quarter of the 1.7 million people at highest risk of mpox have been fully vaccinated with the recommended two-dose regimen.