Researchers at McMaster University have created a powerful new weapon against bacterial contamination and infection. They have developed a way to coax bacteriophages — harmless viruses . . .

Scientists studying how a common tuberculosis vaccine works have discovered that it induces a previously unknown mechanism in the gut that triggers a systemic immune . . .

Distinguished University Professor Gordon Guyatt, who established the gold standard for how health research should be done and evaluated, and who coined the phrase “evidence-based . . .