Mpox Data in California
Mpox clade type (i.e., clade I vs clade II) is not specified in this data set. Mpox (formerly known as monkeypox) has been circulating in the United States and California since 2022. Individual mpox cases and test results are reported to local health jurisdictions for follow-up and monitoring—these data are compiled below and refreshed every other week. See
National Wastewater Surveillance System (NWSS) for mpox wastewater monitoring data, which are not published on this page.
For up-to-date information about clade I mpox cases in the U.S., including travel-associated cases, see CDC Mpox Situation Summary.