parasite
Human Fleas and Lice Spread Black Death
Human Fleas and Lice Spread Black Death
Ashley Yeager | Jan 16, 2018
A new study suggests that the plague, which killed millions of people, was not transmitted by rats.
Image of the Day: Gut Sweet Home
Image of the Day: Gut Sweet Home
The Scientist Staff, The Scientist Staff | Nov 22, 2017
Researchers describe more than 200 species of tapeworm from a decade-long collection of tapeworms from the digestive systems of animals around the world. 
Discovery of the Malaria Parasite, 1880
Discovery of the Malaria Parasite, 1880
Shawna Williams | Sep 1, 2017
Most didn’t believe French doctor Charles Louis Alphonse Laveran when he said he’d spotted the causative agent of the disease—and that it was an animal.
Do Microbes Trigger Alzheimer’s Disease?
Do Microbes Trigger Alzheimer’s Disease?
Jill U. Adams | Sep 1, 2017
The once fringe idea is gaining traction among the scientific community.
Infographic: Brain Infection and Alzheimer’s Disease Pathology
Infographic: Brain Infection and Alzheimer’s Disease Pathology
Jill U. Adams | Aug 31, 2017
Emerging evidence links bacterial or viral infection with the neuropathology of Alzheimer’s disease.
How Bacteria in Flies Kill Parasitic Wasps
How Bacteria in Flies Kill Parasitic Wasps
Shawna Williams | Jul 10, 2017
Ribosome-inactivating proteins from symbiotic bacteria leave their hosts unharmed.
Uncovering the Secrets of a Successful Pest
Uncovering the Secrets of a Successful Pest
Diana Kwon | May 1, 2017
The green peach aphid can colonize new host plants with ease through rapid changes in gene expression.
<em>Wolbachia</em>-infected Mosquitoes Released in Florida
Wolbachia-infected Mosquitoes Released in Florida
Kerry Grens | Apr 19, 2017
The bacterium causes eggs to die, and spreading treated insects is expected to curb Aedes aegypti populations.
Parasitic Worm Spreads in Hawaii
Parasitic Worm Spreads in Hawaii
Bob Grant | Apr 11, 2017
The roundworm that causes rat lungworm disease has infected at least six people on the island of Maui in the last three months.
Image of the Day: Seizure-Inducing Worms
Image of the Day: Seizure-Inducing Worms
The Scientist Staff | Feb 15, 2017
Onchocerca volvulus, a parasitic worm, may cause a fatal form of epilepsy in children by inducing an autoimmune reaction.