Update on Vaccine-Derived Poliovirus Outbreaks - Worldwide, January 2023-June 2024

Published on October 17, 2024

This report describes cases of vaccine-derived polioviruses in 39 countries during January 2023-June 2024.

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Risk of Clade II Mpox Associated with Intimate and Nonintimate Close Contact Among Men Who Have Sex with Men and Transgender Adults - United States, August 2022-July 2023

October 10, 2024
This report describes mpox risk among men who have sex with men and transgender persons who reported close contact with a person with mpox.

Notes from the Field: First Locally Acquired Dengue Virus Infections - Pasadena, California, October-December 2023

October 24, 2024
This report describes the public health response after a case of dengue was reported in California.