Canada’s counterpunch, shingles vaccine and dementia, and more

Canada will be imposing counter tariffs on the U.S. that mirror what the Americans are imposing on businesses here. That means 25 per cent on non-CUSMA-compliant vehicles. It’s another weapon in the trade war ignited by U.S. President Donald Trump’s moves yesterday – to reshape global commerce.And: On the campaign trail, Conservative leader Pierre Poilievre says Trump’s actions are ‘tariff madness.’ He is pitching a policy of removing the GST from Canadian-made cars.Also: New research suggests getting the shingles vaccine could significantly lower your risk of dementia. It's some of the strongest evidence yet that viral infections impact long-term brain function. And preventing them could help protect your cognitive health.Plus: New measles cases in Ontario, Europe reacts to tariffs, and more.