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Sediments buried beneath the Black Sea contain ancient virus and host DNA

A scientist analyzing ancient plankton DNA signatures in sediments of the Black Sea has found that the same genetic populations of a virus and its algal host can persist--and coexist--for centuries.

26 Jul 2011

CNBG, Aeras sign MOU to develop TB vaccines in China and around the world

Aeras and the China National Biotech Group (CNBG) today announced the signing of a memorandum of understanding for the organizations to pursue opportunities to jointly develop tuberculosis (TB) vaccines in China and potentially other parts of the world.

26 Jul 2011

Chicken pox vaccine reduced related deaths by 88%

The team of researchers found that although in 2006 a second dose was added to the vaccination roster, the decrease in deaths occurred largely during the time when just one shot was recommended. While chickenpox-related deaths are now relatively rare, the new two-dose regimen may eliminate them altogether, they said. The double dose will further reduce sick days and medical care associated with chickenpox and its complications, the study authors said.

25 Jul 2011

Salmonella outbreak linked to Mexican papayas

Mexican-grown papayas are being recalled after concerns that they may have led to a salmonella outbreak involving 97 people in 23 states. Agromod Produce announced Saturday that it is recalling papayas sold before July 23, which comes in four brands: Blondie, Mañanita, Tastylicious and Yaya.

25 Jul 2011

Guidance needed on recent HIV prevention findings

"In the absence of the anticipated guidance from WHO, the euphoria felt by participants at Rome that the latest science can allow us for the first time to consider eliminating HIV was tempered by utter confusion among program managers as to what to do next," Nathan Ford, medical coordinator for Medecins Sans Frontiere's International Campaign for Access to Essential Medicines, writes in the PLoS "Speaking of Medicine" blog.

25 Jul 2011

African leaders must invest in malaria prevention

In a Daily Caller opinion piece, Richard Tren, director of Africa Fighting Malaria, highlights a finding in a recent malaria report that the U.S. government and the Bill & Melinda Gates Foundation "were responsible for 85% of the steep increase in malaria funding between 2007 and 2009." But "[i]f 30 African heads of state were to give up their private jets, a fund of well over $500 million could be generated," Tren writes.

25 Jul 2011

Nanoviricides lead anti-HIV candidate as good as HAART cocktail therapy

NanoViricides, Inc. reports that its lead anti-HIV candidate achieved anti-HIV efficacy equivalent to a HAART triple drug cocktail in its recently completed animal study.

25 Jul 2011

Researchers characterise protein complex linked to malaria and toxoplasmosis

Maryse Lebrun, Research Director at Inserm, and her fellow researchers at the Laboratoire Dynamique des interactions membranaires normales et pathologiques, have characterised a protein complex that allows the agents that cause malaria and toxoplasmosis to infect host cells.

25 Jul 2011

New WHO policy recommendation warns against use of blood tests for active TB

A new policy recommendation released on 20 July by the World Health Organization (WHO) warns against the use of serological (blood) tests to diagnose active tuberculosis.

25 Jul 2011

NAACP, AHF offer free HIV and STD testing at Los Angeles Convention Center

On Saturday, July 23, 2011 from 2:00 PM to 6:00 PM, please join AIDS Healthcare Foundation and the NAACP with free HIV rapid testing and testing for other STDs, including gonorrhea, chlamydia and syphilis.

25 Jul 2011

Radiofrequency identification device for studying spread of infection

Participants in a congress were asked to wear a tag for two days in order to study their movements and interactions within a population. The data, collected by a French-Italian team including researchers from CNRS, Inserm, the Université Claude Bernard Lyon1 and the CHU de Lyon, makes it possible to envisage the simulation of the spread of infection risks within a population, or even the optimization of the response to the expansion of an epidemic.

25 Jul 2011

New details about how dendritic cells regulate fate of naive T cells

St. Jude Children's Research Hospital scientists show that the molecule serves as a bridge between the two arms of the immune system that provides a new mechanism guiding T cell differentiation.

25 Jul 2011

House committee votes to reinstate 'global gag rule' on abortion

The House Foreign Affairs Committee on Thursday voted to "reinstate a ban on providing foreign aid to groups that perform abortions or provide advice about the procedure," The Hill's "HealthWatch" blog reports on the "so-called 'global gag rule'".

25 Jul 2011

Report on versatility of nitric oxide in arming hosts against pathogens

A new target for nitric oxide has been revealed in studies of how it inhibits the growth of Salmonella. This bacterium is a common cause of food-poisoning.

25 Jul 2011

Combination strategies more effective for reducing population of tiger mosquitos

An experimental research carried out in Sant Cugat del Vall-s and Rub-, coordinated by researchers from UAB, assessed the efficacy of a combination of strategies to reduce the population of tiger mosquitos.

25 Jul 2011

Tel Aviv University researcher tracks clinical cases of West Nile Virus

Since 1999, several outbreaks of West Nile Virus, which causes fever or severe neurological symptoms and is transmitted from birds to humans by blood-sucking mosquitoes, have been seen in the U.S., usually during the summer months. But researchers aren't certain how the virus migrated here - and they don't know how, or where, it will appear next.

25 Jul 2011

Medicines Patent Pool can help many but has potential limitations for AIDS drug access in middle-income countries

In a post on the New York Times' "Opinionator" blog, author and journalist Tina Rosenberg writes about the Medicines Patent Pool (MPP) and describes how it can help purchase AIDS drugs for "vast numbers of people."

25 Jul 2011

Hendra virus continues in Queensland

Experts have confirmed the eighth outbreak of the deadly Hendra virus in Queensland in a horse on the western Darling Downs. It is not known yet if a large number of people have been exposed to the sick animal, with passers-by and neighbours possibly having stroked it on the Chinchilla property where it lived as a pet.

24 Jul 2011

Circumcision prevents HIV transmission & cocktail of anti-HIV drugs prolong life

Reports came in last Wednesday that circumcision reduces transmission of HIV, in regions where transmission is high. To researchers, this procedure proves to be a cost-effective way to handle the pandemic. In South Africa, a study reported that men with circumcisions reduced new HIV infections by 76%.

24 Jul 2011

Cholera hits Haiti again

Cholera the bacterial disease that rapidly leads to diarrhea and dehydration and kills millions worldwide ravaged Haiti last fall and has spread quickly to all regions of the Caribbean country. With the rainy season now in progress, clinics across the country are again bustling with seriously ill patients.

24 Jul 2011