Daily Mail Australia interviewed a top Sydney cardiologist this week after he called for an end to the use of mRNA vaccines like Pfizer and Moderna because of their connection to the sharp rise in heart conditions linked to the experimental shots.

Last year, the Australian Technical Advisory Group on Immunisation (ATAGI) required all booster shots in the country to be mRNA vaccines, but Dr. Ross Walker argues alternatives like AstraZeneca and Novavax may be safer.

The Aussie doctor explained he's seen people getting vaccine reactions with symptoms lingering "about three to six months after" receiving mRNA shots.

"I've seen 60-70 patients in my own practice over the past 12 months who have had similar reactions," he said. "I've seen other people with chest pain, shortness of breath, heart palpitations."

Dr. Walker is not anti-vaccine as some might assume after reading his statements about mRNA technology.

He supports traditional Covid vaccines, telling Daily Mail Australia, "Getting Covid is ten times worse than getting vaccinated – but we don't need to use mRNA vaccines like Pfizer and Moderna."