Amina Zafar has reported on SARS, H1N1 flu, Ebola and other medical and science topics for CBC News.
Latest from Amina Zafar
Why are the variants more transmissible? Your COVID-19 questions answered
Canadian scientists answer why and how the coronavirus variants are thought to spread more easily and quickly between people.
Why it might be best to avoid painkillers as a precaution before your COVID-19 vaccine
Billions of people worldwide will receive vaccines to protect against COVID-19 and some will temporarily feel a sore arm, fever or muscle aches. But reaching for some common painkillers could blunt the effect of the vaccine, experts say.
Support for essential workers could bring COVID-19 under control faster in Canada, doctors say
Doctors are calling for more supports for essential workers facing "life-or-death" inequities, saying it will do more to control coronavirus outbreaks than high-profile punishments of those who break the rules.
Treatments for COVID-19: What works, doesn't work, and is still being tested
A year into the COVID-19 pandemic in Canada, doctors are learning how to help keep more patients alive, but the proven treatment options remain limited.
Canada's COVID-19 case numbers show early positive signs
Cases of COVID-19 are declining in many parts of Canada, but experts say those early positive signs are dependent on widespread restrictions that the public might find difficult to sustain — and suggest further tools and support is needed.
What's different about the coronavirus 'variants of concern' flagged by WHO
The seemingly more transmissible variants of the coronavirus first discovered in Britain, South Africa and Brazil are called "variants of concern" by the World Health Organization. Here's a look at what's driving the concern and calls for more precautions in Canada.
What it will take to keep nursing home residents safe from COVID-19
To counter some of the drivers of coronavirus transmission among essential workers, governments across Canada should prioritize safety, say experts who've looked closely at avoiding outbreaks.
Why Canada's seniors need the coronavirus vaccine so urgently
The rising number of people testing positive for COVID-19 in Canada, coupled with the new threat from mutant variants, makes it more urgent to vaccinate our oldest and most vulnerable, experts say.
Moderna, Pfizer-BioNTech vaccines have been approved in Canada. Here's what you need to know about them
Moderna's vaccine is the second to be approved in Canada. You might have some questions. How effective are vaccines? What are the side effects? What about allergic reactions? And when can you expect to get your shot? Here are the answers.
Holy Grail treatment for COVID-19 remains out of reach. But options exist
A COVID-19 treatment showing early signs of promise is at risk of being overshadowed by the vaccine rollout.