Gov. Ned Lamont says about 100,000 appointments for COVID-19 vaccinations were expected to be made on Thursday, the first day that anyone 16 years and older is allowed in Connecticut to sign up to get a shot. Lamont said the state has a good supply of vaccine, despite news that a batch of Johnson & Johnson’s vaccine failed quality standards and can’t be used. Lamont’s administration announced late Thursday it estimates the state’s vaccine supply will exceed demand by late April.