Russia said over 200 people had been placed in quarantine.
The San Francisco Department of Public Health says wastewater testing shows that a seven-day average for cases of the new variant of mpox are zero.
Mpox, also known as monkeypox, was first identified by scientists in 1958 when there were outbreaks of a "pox-like" disease in monkeys.
Concern is mounting over the spread of the measles with the United States already topping the total for all of last year. Experts are warning, for some, the disease is easier to get than COVID-19.
While health officials believe the person infected got measles from recent international travel, they're hoping to get in touch with anyone who dined at the Sons of Liberty Alehouse in San Leandro on the night of March 9.
Officials say anyone who was at Sons of Liberty Alehouse in San Leandro on Saturday, March 9 from 4:45 p.m. to 7:30 p.m. may have been exposed to measles. Here's what you need to know.