Dr. Samir Gupta joins Canada Tonight’s host Ginella Massa to talk about if this is the right time to drop these vaccine mandates and if travellers should be vigilant this summer.

Here’s a COVID claim we need to talk about. Once you’ve had COVID, can you get it again? You can, and much more so with Omicron. Omicron is very different from previous variants, which means it not only makes vaccines less effective, but it also makes natural immunity from past infection less effective.

Dr. Samir Gupta, Respirologist and Associate Professor in the Department of Medicine at the University of Toronto, discusses the warning from the Public Health Agency of Canada for Canadian travellers related to the potential threat of catching monkeypox, and for those staying home this summer, what lessons can be learned from last year's deadly heat-dome in B.C

Vaping is popular. And a lot of people assume that if it’s legal, it must not be dangerous. But is this really the case? When you vape, you inhale that vapour into your body... but what’s actually in it? And what are some of the short-and long-term effects of inhaling those substances?

Dr. Samir Gupta, Respirologist and Associate Professor in the Department of Medicine at the University of Toronto, speaks with CBC News Network about surgery wait times affected by the pandemic, concerns over access to hypoallergenic baby formula in some parts of Canada, and new cases of the pediatric liver disease now being reported in Canada.

“Omicron is Mild.” We all hear this often. But is this claim actually true? Just because it’s less mild than the Delta variant doesn’t mean it’s mild. At its peak, the first Omicron wave killed more people every day than the Delta wave did.

Dr. Samir Gupta, Respirologist and Associate Professor in the Department of Medicine at the University of Toronto, on what he thinks about the necessity of airport testing as delays frustrate travellers, the FDA's approval of boosters for those age 5-11, and North Korea's COVID-19 outbreak.

Canada Tonight's Ginella Massa spoke with Dr. Samir Gupta about the investigation by public health officials into cases of severe liver disease "of unknown origin" among children in Canada.

Dr. Samir Gupta, Respirologist and Associate Professor in the Department of Medicine at the University of Toronto, speaks with CBC News Network about the new liver disease being investigated in Canada.

How addictive are vapes exactly? E-cigarettes were initially conceived of as a replacement for cigarettes, which contain nicotine. Most e-juice cartridges also contain nicotine. But the question is, are vapes as addictive as cigarettes? Let's get into it.

Dr. Samir Gupta, Respirologist and Associate Professor in the Department of Medicine at the University of Toronto speaks with CBC News Network about Moderna's new vaccine which shows signs of better protection against COVID-19 variants, and the dropping of mask mandates by some transportation companies

Canada Tonight's Ginella Massa spoke to Dr. Samir Gupta about the impact the long weekend could have on the 6th wave and what Canadians need to know about long COVID.

Canada Tonight's Ginella Massa spoke with Dr. Samir Gupta about Canada's National Advisory Committee on Immunization's latest recommendations and the accuracy of rapid tests with the omicron variant.

With over 500 million people having had COVID worldwide, some are experiencing what’s called “Long COVID”. Long COVID is when symptoms of the virus persist past the four-week mark. In this video we describe Long Covid, why we think people get it and what they can do about it.

It’s been a long two years since the beginning of the pandemic. Many people are still struggling with its mental health impacts. In this video we discuss some simple strategies you can use on your own to help with symptoms of depression, anxiety and stress, and the science behind them.

Canada Tonight medical contributor Dr. Samir Gupta speaks with Ginella Massa about Quebec's Medicago COVID-19 vaccine facing rejection from the WHO and what it means for Canadians.

Masks have helped us all during this pandemic. We know that masks are safe and very effective. They prevent your droplets from going out and infecting others and vice-versa. Rules are changing, but that doesn’t mean you can’t wear a mask!

Does the COVID-19 vaccine affect fertility?! Could it really impact your chances of getting pregnant?! People want to know the answer. Let’s get into this and find out if it's a fact or a myth.

Canada Tonight's Ginella Massa spoke with medical contributor Dr. Samir Gupta about a new study that links COVID-19 to changes in the brain.

People have been asking me if the COVID-19 vaccine development was rushed. Is this a FACT or a MYTH?!?

COVID-19 started in November of 2019 and the first dose of the Pfizer vaccine was given on December 8, 2020. How was it ready so fast? Let's talk about it.