CDC is updating webpages with the term "mpox" to reduce stigma and other issues associated with prior terminology. This change is aligned with the recent World Health Organization decision.

2022 Outbreak Cases and Data

Beginning February 1, 2023, the data below will be updated every two weeks.

At this time, data suggest that gay, bisexual, and other men who have sex with men make up the majority of cases in the current mpox outbreak. However, anyone, regardless of sexual orientation or gender identity, who has been in close, personal contact with someone who has mpox is at risk. Take steps to prevent getting mpox. If you have any symptoms of mpox, talk to a healthcare provider.

Science Brief: Detection and Transmission of Mpox Virus During the 2022 Clade IIb Outbreak

Evolving data about how mpox virus spreads

Read the Science Brief
Multi-National Mpox Outbreak Technical Report

These reports provide timely updates regarding CDC’s ongoing response to the mpox outbreak.

Mpox Technical Reports
Patient Demographics and Select Behaviors