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Disease – Analysis and Comment

Illustrations from the Nuremberg Chronicle, by Hartmann Schedel (1440-1514)

Dealing with devil has long been a part of medicine

Reports of demonic possession are once again on the rise. But during the devil’s last apogee in early modern Europe, demonic afflictions were taken seriously by both priests and physicians.
Lots of positive pregnancy tests this time of year. Kristina Kokhanova/Shutterstock.com

‘Tis the season for conception

Did you ever consider that human beings might have a breeding season? Birth seasonality exists – and has interesting implications for childhood disease outbreaks.
The term “epidemic” is now being used for more than infectious diseases. So what does it actually mean? AAPONE/Ahmed Jallanzo/

From plagues to obesity: how epidemics have evolved

The obesity epidemic, the flu epidemic, the opioid epidemic… in the 21st century, everything seems to be an “epidemic”. But what does the term actually mean?
Thelazia gulosa is an eyeworm parasite that infects cows. But an Oregon woman’s discovery of the worms in her own eye has raised concerns about parasites that jump from animals to humans. (Shutterstock)

How animal parasites find a home in humans

A stomach-churning viral video of an Oregon woman who describes removing cattle eyeworms from her eye has renewed interest in parasites that jump from animals to humans. Here’s all you need to know.
A CDC scientist measures the amount of H7N9 avian flu virus grown in a lab. James Gathany/CDC/Handout via REUTERS

3 ways the US should prepare for the next flu pandemic

Science has come a long way in the 100 years since the worst flu pandemic in history. But that doesn’t mean that the country is ready for another health disaster.
People in Canada and around the world are living longer thanks to public health and modern medicine. It’s time to treat aging as an asset, not a process of decline. (Shutterstock)

It’s time to treat aging as an asset, not a burden

The population is aging in Canada and around the world. It’s time to focus our attentions on optimal aging instead of grimly tallying the burdens of growing old.