Public health officials in Contra Costa County reported a case of measles on Monday, warning that the individual was in public places in Walnut Creek before being diagnosed and likely exposed others to the virus.
The report comes amid a massive U.S. measles outbreak, which topped 2,000 cases on Monday, according to the Centers for Disease Control and Prevention. That was the most cases since 1992.
Details about the individual in Contra Costa County were not provided, including how that person became infected and whether they were part of any ongoing outbreaks in other parts of the country. California has among the highest vaccination rates in the United States and has largely avoided the national surge. As of Monday, the state had reported 25 cases…