Most mammals produce their own vitamin C using an enzyme called GULO. Around 60 million years ago, humans lost this ability, ...

Parasites are organisms that feed off their hosts for survival. Such parasitic creatures can cause mild to serious symptoms and, in some cases, fatal infections in their hosts. “Overall, parasites ...

Add Yahoo as a preferred source to see more of our stories on Google. Millions of years ago, humans lost the ability to produce vitamin C, a mystery that has puzzled scientists for decades. Now, new ...

Scientists have uncovered a hidden battle between a widespread brain parasite and the immune cells tasked with destroying it. A parasite that can quietly persist in the human brain is capable of ...

AMES, Iowa – The worms can live inside your body for years, decades even. And it’s not the worms themselves that will eventually make you sick. Rather, it’s the thousands of eggs they lay.

If vitamin C stops cancer in its tracks, and being deficient in it can cause scurvy – the disease long associated with ...

Sneaky parasite evades the human immune system by stripping cells and wearing them as a disguise Parasites are known to infect human cells through a variety of ingenious mechanisms. Many of them have ...

Entamoeba histolytica infects nearly 50 million people each year and kills around 70,000. It’s a shape-shifting parasite that invades the human gut, often causing mild symptoms like diarrhea. But in ...

A cat parasite that can infect humans is called toxoplasma and it's a parasite that can live in all cat species. The parasite can spread to almost all other birds and mammals, not just humans, on ...

A new study, conducted by researchers from the Institut Pasteur in Paris and the Centre for Genomic Regulation (CRG) in Barcelona, have revealed that Leishmania adaptation is a consequence of ...

Such evidence suggests early heartworms evolved alongside canines millions of years ago. Mosquitoes existed long before ...

A human case of the flesh-eating New World Screwworm has been found in the United States, carried by a person who recently visited El Salvador. The patient had recently returned to Maryland from ...