Toronto Dr. Jeff Kwong, who also helps at pop-up clinics, said he's seen the same kind of hesitancy about Moderna but is also able to challenge that thinking. "I think people are less familiar with the Moderna name, but the reality is both are very good vaccines," he said. "The majority of people will change their minds and say, 'OK I think it's reasonable to get the (Moderna) vaccine.' " For Shah, it's exciting that entire families are now getting vaccinated together. "The kids sit down at a table and get Pfizer. The parents sit down and get Moderna and they all walk out happy."