Every case of COVID-19 is the result of someone having been exposed to the coronavirus.
Here in California, as elsewhere, different people experience different exposures to the virus.
Different patterns of coronavirus exposure in California’s major racial/ethnic (R/E) groups can be seen in different patterns of actual COVID-19 cases per 100,000 population.
Read the full report:
The COVID-19 Case Rate and California's Diversity: Patterns in Coronavirus Exposure.pdf