The pangolin, one of the most poached animals in the world, could have served as an intermediate host in the transmission of SARS-CoV-2 to humans.
Covid-19, like other major epidemics, is not unrelated to the biodiversity and climate crisis we are experiencing.
A member of the South African National Defence Force hands out pamphlets informing township residents about COVID-19 in Johannesburg.
Ubuntu provides a language for people to participate in preventive action, even if this involves practices such as lockdowns.
Empty parking lots show social distancing’s costs. It could take time to see its benefits.
Pete Starman/The Image Bank via Getty Images
COVID-19 has a long incubation time, and testing can take days to get results. Don't let continually rising case numbers make you give up on staying at home.
Social distancing is one of the key ways to keep the coronavirus from spreading.
Getty Images / Maddie Meyer
Handling the US outbreak requires a look at what's working for the rest of the world – and our own history.
COVID-19 cases as of March 22 2019.
The Center for Systems Science and Engineering at John Hopkins University
Modelling highlights the urgent need for strong interventions.
A health-care worker prepares for the opening of the COVID-19 Assessment Centre in Ottawa, during a media tour on March 13, 2020.
(THE CANADIAN PRESS/Justin Tang)
As response to COVID-19 moves from a learning phase to an operational phase, lessons from the 2009 H1N1 pandemic can inform Canada's action plan.
The government's "whatever it takes" promise to NHS is all very well, but UK healthcare is a long way from being ready to deal with a major outbreak.
A security guard wears gloves while holding a basketball during halftime of an NBA game in Houston on March 5, 2020. The NBA has told players to avoid high-fiving fans and to avoid taking any item for autographs.
AP Photo/David J. Phillip
Initial data from the outbreak in China did not reveal as much information as scientists needed to assess the epidemic. Now, more accurate data suggest an epidemic worse than some previously thought.
Commuters jam a Toronto subway platform. Widespread adoption of habits that help prevent infection may boost behavioural herd immunity.
THE CANADIAN PRESS/Graeme Roy
Large-scale adoption of simple, individual actions — like disinfecting our germ-laden phone screens — can limit the ability of COVID-19 to get a foothold.
Flight attendants check temperatures of passengers aboard an Air China flight from Melbourne to Beijing on Feb. 4, 2020.
AP Photo/Andy Wong
The World Health Organization has said the coronavirus is not yet a pandemic. That raises a question: just what is a pandemic? An expert explains.
To how many others will one infected person spread the infection?
Bim/E+ via Getty Images
Epidemiologists want to quickly identify any emerging disease's potential to spread far and wide. Dependent on a number of factors, this R0 number helps them figure that out and plan accordingly.
A man wearing a face mask prays at Erawan shrine in Bangkok, Thailand, Jan. 29, 2020. Thailand has five reported cases of coronavirus.
AP Photo/Gemunu Amarasinghe
Scientists do not yet know the severity of the current coronavirus. A biologist who worked on the 2009 flu pandemic offers insights on that outbreak as well as the SARS outbreak.
President Donald Trump displays a presidential memorandum he signed, declaring the opioid crisis a public health emergency in the East Room of the White House, Oct. 26, 2017, in Washington.
(AP Photo/Pablo Martinez Monsivais)
Opioids kill an average of eight people every day in Canada. The federal government must officially declare this a 'public welfare emergency' and invest the funds critical to a humane response.
Every year in Canada, there is an average of 23,000 cases of lab-confirmed influenza, 12,000 people who need to be admitted to hospital and 3,500 flu deaths.
As influenza season begins in North America, many people wonder whether to get a flu shot. Our expert delves into the pros and cons of the vaccine and how it works.
Health workers during the 2014-2016 Ebola outbreak in West Africa. The Chinese view of and response to epidemics differs markedly from that developed in the West.
Not every country prepares for global health threats in the same way.
After the Spanish flu we didn’t see any new flu strains for forty years. Now novel strains are increasingly popping up.
How is it the flu has managed to stay around for so long, and why haven't we beaten it yet?
The H5N8 virus is especially dangerous for migratory birds.
Studies of animal-human interactions in various settings could perhaps help prevent bird flu and the mass slaughter of animals it inevitably leads to.
But what are the risks?
Air travel can turn epidemics into pandemics.
More than 8,000 people have died from Ebola in West Africa since February 2014 and it has spread beyond the three countries initially affected. So, it’s an epidemic, right? Or is it an outbreak? What about…
The H7N9 flu virus killed more than a third of people who were admitted into hospital, according to new estimates published…