Articles on Pathogens

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What happened to make plague able to cause devastating epidemics, as in this depiction from 1349? Pierart dou Tielt/Wikimedia

Plague was around for millennia before epidemics took hold – and the way people lived might be what protected them

People caught and died from plague long before it caused major epidemics like the Black Death in the middle ages. Could what scientists call cultural resistance be what kept the disease under control?
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.
Just as organisms that infect us make changes in us - we too make changes in them and they grow and adapt to their human hosts. from www.shutterstock.com

How we change the organisms that infect us

Humans play host to many little passengers. Right now, you’re incubating, shedding or have already been colonised by viral, bacterial, parasitic or fungal microorganisms - perhaps even all of them.

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