Monday, the long lines were gone and dozens of appointments were still available. “Some people may be a bit hesitant to wait and see what some of the side effects might be before they signed up,” said Jennifer McClain, a Richardson resident who received her second dose. Curative Inc., the company that runs the hub, says its seen a drop in appointments statewide lately. Thousands are still available in Plano this week and there are questions about whether it's related to the pause in the Johnson and Johnson vaccine. “I think that that's made some individuals hesitant because they think that might apply to all the COVID vaccines but that's actually not the case either,” said Jessica Rangel, Senior VP of Clinical Innovation at UNT Health Science Center