Irfan Dhalla is a public health expert, he's been a voice of reason throughout the pandemic, and he joins Nate to discuss vaccine roll-out strategy, whether and how we should begin to allow cross-border travel, and lessons learned to prevent and prepare for a future pandemic.If you don't already follow Dr. Dhalla on Twitter, you should. He’s also the vice-president and general internist at Unity Health Toronto, associate professor at U of T’s medical school, and currently the co-chair of Canada’s Expert Advisory Panel on Testing and Screening.That panel has issued four reports to date, and its most recent report makes recommendations for changes to our border management practices, including allowing quarantine-free travel for those with proof of immunity. Just as we followed public health guidance to impose restrictions, we must now follow public health guidance to lift them. Dr. Dhalla is a regular commentator in the media, writing recently to call for a faster second dose strategy, and having previously written in support of an elimination strategy which has proven to be the successful approach when we compare outcomes across national and subnational jurisdictions.