The tally of known coronavirus cases in the District, Maryland and Virginia stands at 1,688 Friday, with 775 cases in Maryland, 605 in Virginia and 308 in the District. Here are some of the most significant and recent developments as the region responds to the pandemic of the novel coronavirus, which causes the disease covid-19:

• District officials announced the death of George Valentine, the deputy director of Mayor Muriel E. Bowser’s office of legal counsel — the fourth covid-19 fatality in the District.

• D.C. officials announced the city will curtail most in-person voting for the June primary election to reduce coronavirus transmission risk and is encouraging people to instead request mail-in ballots.

• Maryland added 194 known coronavirus cases Friday, while Virginia added 144 cases and D.C. added 37.