A team co-led by a scientist at the University of California, Riverside, has developed a method to study how HIV mutates to escape the immune system in multiple individuals, which could inform HIV vaccine design.
By experimentally comparing wild populations of Ae. aegypti the researchers discovered that the invasive subspecies is very effective at transmitting the Zika virus not only because it has more frequent contacts with humans for blood meals, but also as a result of its greater susceptibility to the virus relative to the African subspecies.
Scientists have discovered an extremely rare species of cymothoid from the mouth of a museum specimen of a deep-sea shark caught from the East China Sea, suggesting its wide distribution around the globe.
New research into how a common parasite infection alters human behaviour could help development of treatments for schizophrenia and other neurological disorders. T. gondii currently infects 2.5 billion people worldwide and causes the disease Toxoplasmosis.
By studying two models of parasite infection, the University of Pennsylvania's De'Broski Herbert and colleagues filled in crucial gaps about the activity of the signaling molecule IL-33 that is critical to asthma, allergies, and other diseases.
Yale researchers have discovered a protein that helps protect hosts from infection with the tick-borne spirochete that causes Lyme Disease, a finding that may help diagnose and treat this infection, they report Nov. 11 in the journal PLOS Pathogens.
Shoal behaviour in fish is an important strategy for them to safeguard their survival. Certain parasites are able to manipulate this strategy. Biologists have discovered that infected individual fish disturb the transmission of flight behaviour and, as a result, increase not only their own risk of being eaten, but also that of other - non-infected - members of the group.
A world-first study on the Great Barrier Reef shows crown-of-thorns starfish have the ability to find their own way home -- a behavior previously undocumented--but only if their neighborhood is stocked with their favorite food: corals. The starfish will consume available Acropora and ultimately eat themselves out of house and home before dispersing in search of new feeding grounds.
While associations between microbes and their hosts have long been known, little is known about how microbes evolve and how their evolution affects the health of their hosts. Now, researchers find that as microbes evolve and adapt to their unique hosts, they become less beneficial to hosts of other genotypes, suggesting that there is probably not one universally healthy microbiome and that transplanted microbes need time to adapt to a host before they bring benefits.
The main parasite that causes malaria can alter its gene expression to survive undetected in the human blood stream, new research has shown.