A common plant virus lures aphids to infected plants by making the plants more attractive, but when the insects taste the plant, they quickly leave for tastier, healthier ones. In the process, the insects rapidly transmit the disease, according to Penn State entomologists.
"The virus improves... Read More
Varicella. Vesicle smear from case of chicken pox. Direct fluorescent antibody (FA) staining readily differentiates chicken pox or zoster lesions from those due to Herpes simplex viru Read More
Researchers at Uppsala University and the Swedish University of Agricultural Sciences (SLU) have found several genes that lead to increased risk for an SLE-like autoimmune disorder in dogs. This is the first time scientists have found genes behind such a complex disease.
The study is being pu... Read More
Researchers at National Jewish Health have discovered how the virulent food-borne bacteria Listeria monocytogenes induces infected immune cells to sabotage their own defensive response. The studies offer insight into host-pathogen interactions and suggest potential therapeutic targets for food p... Read More
Scientists who study how organisms reproduce know that asexual reproduction is more efficient — for one thing, it’s about twice as fast as sexual reproduction, since every offspring can produce more.
But if the asexual way is so efficient, why do almost all animal species reproduce sexually, ... Read More
A nonprofit organization is paying the Food and Drug Administration to help develop a better vaccine against pneumococcal disease in poor countries.
In the last decade, such vaccines have sharply decreased hospitalizations for the disease in the United States. The bacteria, Streptococcus pneu... Read More
Symbiosis: bacteria and higher organisms.Video on how a bioluminescent marine bacterium called Vibrio fischeri colonizes a specific tissue of Euprymna scolopes, a small Hawaiian squid. Discussion by Karen L. Visick, Ph.D., Department of Microbiology and Immunology, Loyola Medical Center. Read More
Wine lovers will delight in this guest blog post on Small Things Considered and adaptation from an article in the January 2010 issue of Wines and Vines by John Ingraham, a retired UC Davis Professor of Microbiology, on how he and his colleagues tamed the "capricious and independent" cycle of mal... Read More
Networks of interconnected pores in the shells of the Savannah River National Laboratory’s Porous Walled Hollow Glass Microspheres give the tiny “microballoons” unique capabilities for potential use in targeted drug delivery, hydrogen storage and other uses.
Hollow glass microspheres have be... Read More
No vaccine currently exists for West Nile Virus, but a new therapeutic made from tobacco plants has been shown to arrest the infection, according to a new study.
Elderly individuals and those with depressed immunity are particularly vulnerable to West Nile, a mosquito-borne illness that can c... Read More
At least 50 per cent of antibiotic use in hospitals is inappropriate, according to a new report from the national Health Protection Surveillance Centre (HPSC) which yesterday published guidelines on proper antimicrobial stewardship in hospitals in Ireland.
The report warns that in addition to... Read More
Medical researchers use laboratory-grown human cells to learn the intricacies of how cells work and test theories about the causes and treatment of diseases. The cell lines they need are “immortal”—they can grow indefinitely, be frozen for decades, divided into different batches and shared among... Read More
According the the UK's Daily Telegraph -
"The versatile spray, which forms an easy-clean coating one millionth of a millimetre thick – 500 times thinner than a human hair – can be applied to virtually any surface to protect it against water, dirt, bacteria, heat and UV radiation.
The spra... Read More
A bacteria-killing protein that would be applied to raw meat during processing to “significantly reduce” the presence of E.coli is under development for the meat industry.
US-based Ecolab Inc announced it has joined forces with AvidBiotics Corps to commericalize its proprietary protein-based ... Read More
In the Feb. 15 issue of the Journal of Experimental Medicine, Laurel Lenz, PhD, and his colleagues report that macrophages infected by the bacteria Listeria release interferon-αβ (IFN- αβ), which makes them and nearby immune cells unresponsive to activation signals. This reduces immune resistanc... Read More
The development of antibiotics gave physicians seemingly miraculous weapons against infectious disease. Effective cures for terrible afflictions like pneumonia, syphilis and tuberculosis were suddenly at hand. Moreover, many of the drugs that made them possible were versatile enough to knock out... Read More
ABC World News has published a brief article on the history of HeLa cells and the controversy over how they were acquired and then used to generate windfall profits for many medical-related companies. Often described as one of the greatest medical discoveries of our time, HeLa cells originally c... Read More
An international group of researchers has published the first genome-wide association study on the malaria parasite Plasmodium falciparum, looking for genes associated with antimalarial drug resistance and more.
The team used a custom microarray to assess nearly 200 culture adapted P. falcipa... Read More
Scientists have determined how a normal protein can be converted into a prion, an infectious agent that causes fatal brain diseases in humans and mammals.
The finding, in mice, is expected to advance the understanding of transmissible spongiform encephalopathies, or TSEs, a family of neurodeg... Read More