Hundreds have died from COVID-19 in California. Seniors and people with underlying health conditions, such as asthma, heart and lung diseases, are at heightened risk. And people who are immunocompromised may also be more vulnerable. 

But the youth are not invincible. A 25-year-old died in Riverside County. In March, public health officials initially labeled a 17-year-old’s death in Lancaster as coronavirus-related, but that case remains under investigation.