According to Christopher Brown, a health scientist for OSHA, measles surveillance in the workplace needs to improve to prevent unnecessary transmission. Measles cases are at a 27-year high, and in past outbreaks, transmission occurring at work has been common- especially in the healthcare sector. Brown wrote a letter recently, urging both local and state health departments to report measles outbreaks in order to allow researchers to study infection patterns. This year alone, the CDC has accounted for more than 1,100 measles cases- a 300 percent increase since 2018.
See "Measles surveillance lags in U.S. workplaces, expert says", Carolyn Crist, Reuters, August 2, 2019