Science journalist

Face shields and exhalation valves defeat the purpose of masks, Ontario’s huge surgical backlog, and the first data about that Russian vaccine in my weekly roundup…

Keep Trump out of health messages, symptom screening won’t work in schools, and drug use at virtual raves in this week’s roundup of COVID-19 science for The…

Healthcare workers shunned, kids could be silent spreaders, and  spit is as good as a swab in my weekly roundup of COVID-19 science for The Tyee.

Cancer cells become super-charged when exposed to methylmalonic acid, a chemical that builds up in older people’s bodies. Many forms of cancer become more common and…

Transmission risk is highest at home, few children infected in first wave, and a worrying rise in domestic violence in this week’s roundup of COVID-19 science…

How Canada can beat the pandemic, the price countries were willing to pay to save lives, and how reading these updates can help keep your stress…