COVID-19 vaccine clinics once they realized they’d be getting the Moderna jab — a surprising turn that experts say suggests some Canadians are mistaking the product as inferior to its Pfizer-BioNTech counterpart.Grindrod, a researcher and pharmacy professor at the University of Waterloo, says one clinic in her southwestern Ontario region reported around 50 walk-outs while other nearby sites saw daily instances of people refusing the Moderna shot, despite its similar effectiveness to Pfizer.Walkout numbers decreased, she says, after clinics placed medical professionals at entrances to clarify the similarities between the two vaccines.“At first it was like, ‘What is happening?'” Grindrod says.“Now they’re getting a bit better explaining to.