On episode #66 of the podcast This Week in Virology, Vincent and Dickson continue virology 101 with a discussion of information flow from RNA to DNA, a process known as reverse transcription, which occurs in ... Read More
As for the mutations detected by the National Epidemiological Surveillance Network in the last week have reported five new cases of mutation 'D222', three of them in two in the Basque Country and Andalusia.
Also, there is an increase in the number of viruses detected in cases from different r... Read More
The flea’s mouthparts, perfectly adapted to puncturing the skin, slide in easily, and the tiny insect immediately begins sucking blood from its host.
But it doesn’t only suck blood – the flea’s saliva keeps blood from clotting. And riding along in that saliva are bacteria.
In a world liter... Read More
A scientist at Springfield's Southern Illinois University School of Medicine says he has developed a vaccine that could provide near-total protection against genital herpes, one of the world's most common sexually transmitted infections.
"To me, this is the future genital herpes vaccine," Wil... Read More
The science community is abuzz over the news that the entire genetic makeup of a highly valuable wasp has been determined via DNA sequencing.
Nasonia is the name given to three different species of pinhead-sized, parasitic wasps that act as a kind of natural pesticide: They sting -- and lay t... Read More
In this video from India's NDTV, reporters address growing public anger against the World Health Organisation (WHO) for reportedly making swine flu pandemic bigger than it really was. Health experts in India say this isn't the first time WHO has pushed for programmes, even though they are not ne... Read More
About one in five Americans has been vaccinated against swine flu, according to the government's first detailed estimates of vaccination rates against the pandemic.
The estimate is based on two government telephone surveys done in December and early January. The surveys concluded that an esti... Read More
Since the PCV7 early childhood vaccine for bacterial pneumonia was introduced in the United States in 2000, the number of children hospitalized for pneumonia because of pneumococcus has decreased by 50 percent and bacterial pneumonias have decreased overall, new research shows.
But the scient... Read More
The tendency to reach for disinfectants, stringent cleaners, and hand sanitizers is high this time of year for cold and flu prevention. During pregnancy women tend to be extra careful to reduce exposure to bugs of any kind. It appears, however, that a little exposure can go a long way as a new... Read More
Using two beamlines at the Canadian Light Source (CLS) and a third at the Advanced Light Source (ALS), researchers from McMaster University have found that two species of bacteria isolated from a mine tailings pond in northern Ontario actually work together to limit the amount of acid produced b... Read More
California Latinos have been nearly twice as likely as whites to die of H1N1 flu since the pandemic began last spring, according to statewide figures released this morning by the California Department of Public Health.
Over the same months, blacks in the state have been 50% more likely to die... Read More
HIV is striking back against the antiretroviral drugs that keep it largely in check in rich countries, thanks both to its exposure to the major drugs and to individuals who don't realise they're infected and so spread resistant strains to new partners.
Drug-resistant strains of HIV have alrea... Read More
New data offer an up-close look at the enzyme that protects the protozoa and how one compound obstructs those efforts.
After many years of study, a team of researchers is releasing data today that it hopes will lead to new drug therapies that will kill the family of parasites that causes ... Read More
Circumcision is associated with significant reductions in HIV, HSV-2 and HPV infections among men and significant reductions in bacterial vaginosis among their female partners.
METHODOLOGY/PRINCIPAL FINDINGS: We assessed the penile (coronal sulci) microbiota in 12 HIV-negative Ugandan men bef... Read More
Microscopic nematode worms can be a potent organic insecticide, killing crop-raiding bugs without harming plants or beneficial insects and without environmental side effects of chemical. The problem is that when the worms are mass-bred for agricultural purposes, they tend to, as Byron Adams says... Read More
The standard "one-size fits all" dose may not clear infection in larger adults and increases the risk that resistance will develop, they argue.
More work is needed to guide GPs on how and when to alter doses, an editorial in The Lancet to accompany the study by doctors from Greece and the US ... Read More
A new study led by researchers at NYU Langone Medical Center is shedding new light on the action of Rho, a key regulatory protein in E. coli and many other bacteria. The study, published in the Jan. 14, 2010 issue of Nature, reveals a new paradigm to understand the molecular principles of gene t... Read More
A top World Health Organization official dismissed charges Thursday that the agency exaggerated the threat posed by the H1N1 virus and that it had been unduly influenced by the pharmaceutical industry to issue dire warnings about the swine flu pandemic.
"The world is going through a real pand... Read More
About 100 million years ago, the bacterium Wolbachia came up with a trick that has made it one of the most successful parasites in the animal kingdom: It evolved the ability to manipulate the sex lives of its hosts.
"When it developed this capability, Wolbachia spread rapidly among the world'... Read More
It's not thinking in the way humans, dogs or even birds think, but new findings from researchers at the University of Tennessee, Knoxville, show that bacteria are more capable of complex decision-making than previously known.
The discovery sets a landmark in research to understand the way bac... Read More