People 16 to 64 in Henrico County with pre-existing conditions may now complete a COVID-19 vaccination interest form through the Richmond and Henrico Health Districts’ website at http://vax.rchd.com. The RHHD Wednesday afternoon opened the pre-registration opportunity for people in that group, which is part of Phase 1B of the state’s vaccination process. Those who complete the form are not registering for the vaccine but rather adding their names to a list that RHHD officials will use when vaccines become available for members of the group, perhaps sometime in March. Vaccinations in Henrico and Richmond currently are available only to senior...