A naturally occurring virus in mosquitoes may serve as a “late-life-acting” insecticide by killing older adult mosquitoes that are responsible for the bulk of malaria transmission. The researchers from Johns Hopkins University and the Johns Hopkins Malaria Research Institute, Baltimore, Maryla... Read More
Highly pathogenic avian influenza virus (H5N1) may persist on feathers fallen from the bodies of infected domestic ducks and contribute to environmental contamination. Researchers from the National Institute of Animal Health, Tsukuba, Ibaraki, Japan report their findings in the August 2010 issu... Read More
The human genome is riddled with dead genes, fossils of a sort, dating back hundreds of thousands of years — the genome’s equivalent of an attic full of broken and useless junk.
Some of those genes, surprised geneticists reported Thursday, can rise from the dead like zombies, waking up to ca... Read More
In May, days after a group of high school students in the Bay Area nibbled on custard-filled pastries at a catered prom dinner, several of them started to complain about aching stomachs. Around the same time, some college students celebrating their graduation used the same catering company — and... Read More
The oldest evidence of a fungus that turns ants into zombies and makes them stagger to their death has been uncovered by scientists.
The gruesome hallmark of the fungus's handiwork was found on the leaves of plants that grew in Messel, near Darmstadt in Germany, 48m years ago.
The finding ... Read More
Following up a pioneering 2007 proof-of-concept study, a University of Utah biochemist and colleagues have developed a promising new anti-HIV drug candidate, PIE12-trimer, that prevents HIV from attacking human cells.
Michael S. Kay, M.D., Ph.D., associate professor of biochemistry in the Uni... Read More
Conventional thinking says that animal immune systems have evolved to defend against harmful microorganisms, but a new Cornell study examines the role of friendly bacteria in shaping animal immunity.
All animals are colonized by bacteria -- in fact, humans have 10 times as many bacteria as ce... Read More
Mosquitoes that carry the Plasmodium parasite cause some 300 million cases of malaria every year, claiming one million lives. That's a lot of carnage generated by an insect smaller than a pinky fingernail—but if enterprising researchers have their way, their blood-thirsty assault won't continue... Read More
Before you make breakfast, check the egg carton. Does it bear the name Lucerne, Albertson, Mountain Dairy, Ralph’s, Boomsma’s, Sunshine, Hillandale, Trafficanda, Farm Fresh, Shoreland, Lund, Dutch Farms or Kemps?
If so, those scrambled eggs may have to wait.
Egg supplier Wright County Egg... Read More
This episode: Trees grow their own good bacteria!
(2.6 MB, 3 minutes)
Just the story:
Post questions or comments here... Read More
A cheap and effective filtering device developed by a South African university could provide safe drinking water to millions of people, drastically reducing the incidence of waterborne illnesses such as cholera and other diarrhoeal diseases.
The device resembles a teabag in both size and shap... Read More
Viruses that can invade host cells, initiate cancer and then flee from their own trail of destruction could be stopped in their tracks, say researchers writing in the September issue of the Journal of General Virology.
Scientists at the University of Cambridge have not only provided the first... Read More
A continuacion: Los eucariotas y el árbol de la vida; fiebre tipo escarlatina oriental; los flagelos bacterianos y los receptores Toll-like; y las bacterias de las profundidades.
L... Read More
This episode: Trees grow their own good bacteria!
In May 2010, CDC identified a nationwide increase in the number of Salmonella Enteritidis isolates with PFGE pattern JEGXX01.0004 uploaded to PulseNet, the national subtyping network made up of state and local public health laboratories and federal food regulatory laboratories that performs mol... Read More
A brief article in Scientific American by writer John Platt looks at the dim future for little brown bats who are at risk of becoming extinct due to white nose syndrome.
"As we have previously reported, 95 percent of Vermont's bats have been killed by the deadly fungal infection known as whi... Read More
Despite a known preventative, polio still maims and cripples 1,000 people annually.
Poliomyelitis—a viral disease that wreaks havoc on motor neurons, often paralyzing sufferers for life—was supposed to be banished from the planet a long time ago. When Jonas Salk unveiled his famed vaccine to ... Read More
Now that older people have prescription drug coverage from Medicare, they are using more antibiotics, a new study from the University of Pittsburgh has found.
That may not sound surprising. But the authors of the study say it could be worrisome.
Among the drugs being taken more often, the ... Read More
"In recent years, pertussis has made an alarming comeback — even among adolescents and adults who were vaccinated as children.
Highly contagious, spread by coughs and sneezes, pertussis is now epidemic in California, with 2,774 confirmed cases in 2010 — a sevenfold increase from last year, pu... Read More