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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.
Scientists are using a powerful gene editing technique to understand how human embryos develop. shutterstock

Genome editing of human embryos broadens ethics discussions

A new gene editing experiment explores human development. With this comes new ethical questions: How do scientists acquire embryos and how are their projects approved?
Awareness and knowledge about rabies at a local level is key. This can help prevent bites and encourage people to get post-exposure treatment. Sarah Cleaveland

How to end human deaths from rabies: lessons from Kenya

The strategy to eliminate human rabies is straight forward: vaccinate dogs, provide prompt post-exposure vaccines, public education and awareness on prevention.

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