Dad, 84, lives alone in goa, india.mostly good health( hypertension & glaucoma under ctrl with meds,uses ex.bike, healthy diet). sensitive to resp. infec's.visits us 1/ yr to see his kids, he and all family are fully vaccinated. safe to visit us now?

Tough call. The COVID-19 vaccines are not 100% effective. Your dad is in a high risk group based on his age. Wait till international travel is safer. He's made it this far into the pandemic safely, and should avoid exposure to all those people who he'll come into contact wth who may not have been vaccinated. He needs to show a negative COVID-19 test result done within 3 days of travel to the US

Compare COVID 19 rates in the two countries. Discuss safe travel options with family members, including traveling with your Dad. Masks and a Plastic Face shield should be worn. Double masking may also be advisable. Staying well hydrated and away from ill contacts lessens the chance of acquiring an illness.