The Diocese of San Jose gave a dispensation from attending Mass to people in the various risk categories[1]. That means they don't have to attend Mass on Sunday.

> don't need to receive Communion for now

Regardless of the virus you only need to receive Communion once per year, not at every Mass[2].

[1] https://www.dsj.org/decree-of-special-dispensation-coronavir...

[2] https://forums.catholic.com/t/receive-holy-communion-at-leas...