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El podcast del Microbio Nº 243: Sexo, neardentales y sistema inmune (Sex, neandertals and immune system)



























El podcast del microbio Nº 243 summarize the Science article by Abi-Rached et al. about the interbreeding between neandhertal an... Read More

Science Friday: Debate Persists Over Publishing Bird Flu Studies (Live at 2pm ET)

Ira Flatow of Science Friday will host a panel discussion on the issues surrounding a federal advisory board that has urged scientific journals not to publish the research from two labs that have developed an airborne bird flu virus (H5N1). Virologist Vincent Racaniello and Biosecurity expert D.... Read More

Bacterial Vaginosis Is Associated with Higher Risk of Female-to-Male Transmission of HIV

An investigation led by UCSF has found that the risk of female-to-male HIV transmission is increased three fold for women with bacterial vaginosis, a common disorder in which the normal balance of bacteria in the vagina is disrupted.

The new research assessed the association between bacterial... Read More

Study Shows First N.C. Case of Feral Pig Exposure to Nasty Bacteria

A North Carolina State University study shows that, for the first time since testing began several years ago, feral pigs in North Carolina have tested positive for Brucella suis, an important and harmful bacteria that can be transmitted to people.

The bacteria are transmitted to humans by uns... Read More

Microbial Movers - A Small Things Considered Post

Elio Schaechter of Small Things Considered has authored an interesting post today about the motility of bacteria, specifically Paenibacillus, although he does highlight several other strains that swarm, glide or twitch.

"Microbes get around. They can be carried by the wind, by insects, or by ... Read More

Influenza H5N1 virus versus ferrets, round two

The second of two papers on avian influenza H5N1 virus that caused such a furor in the past year was published today in the journal Science. I have carefully read the paper by Fouchier and colleagues, and I assure you that it does not enable the production of a deadly biological weapon. The resu... Read More

Bacteria outbreak in Northern Europe due to ocean warming, study says

Manmade climate change is the main driver behind the unexpected emergence of a group of bacteria in northern Europe which can cause gastroenteritis, new research by a group of international experts shows.

The paper, published in the journal Nature Climate Change on Sunday, provided some of th... Read More

Mind-controlling virus forces parasitic wasp to put all its eggs in one basket

In a French meadow, a creature that specialises in corrupting the bodies of other animals is getting a taste of its own medicine.
Leptopilina boulardi is a wasp that lays its eggs in fly maggots. When the wasp grub hatches, it devours its host form the inside out, eventually bursting out of its... Read More

Princeton University researchers develop tooth attachment that detects bacteria

It may not be the latest style in bovine bling, but researchers at Princeton University say a golden tattoo attached to a cow’s tooth could one day tell you something about your health.

The remote sensing device has the ability to detect a single bacterium, and to demonstrate, scientists at P... Read More

Mosquito Immune System Engineered to Block Malaria

Researchers at the Johns Hopkins Malaria Research Institute demonstrated for the first time that the Anopheles mosquito's innate immune system could be genetically engineered to block the transmission of the malaria-causing parasite to humans. In addition, they showed that the genetic modificati... Read More

Vorticella

A single Vorticella species. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

HPV Vaccine Reduces Infection, Even in Unvaccinated: Evidence of 'Herd' Protection

The HPV vaccine not only has resulted in a decrease in human papillomavirus infection in immunized teens but also in teens who were not immunized.

The study is believed to be the first to show a substantial decrease in HPV infection in a community setting as well as herd protection -- a decre... Read More

Biosecurity Can Help Prevent Spread of EHV-1 Infections

The neurologic form of the equine herpesevirus-1 (EHV) called equine herpesvirus myeloencephalopathy (EHM), a potentially fatal disease of horses, can largely be avoided by instituting and maintaining standard biosecurity measures, which are readily available from the American Association of Equ... Read More

Do Bacteria Have Built-In Cell Death Mechanisms?

Cell death, also known as apoptosis, is a significant part of normal animal development. However, the question arises whether bacteria, similar to higher organisms, have a built-in mechanism that determines when the cells die.

Researchers at the Hadassah Medical School of the Hebrew Universi... Read More

Small Things Considered: That Scary Restroom Microbiota

Newspapers and other media are reporting with regular frequency that restrooms, ATM machine pads, money bills, and other sites carry many different microbes upon their surfaces including potentially pathogenic bacteria and viruses. Headlines call attention to such scary-sounding news and alarm t... Read More

Selection-driven Gene Loss in Bacteria

Bacterial genomes differ dramatically in size: from 140Kb to 13Mb (those numbers might be off now...please let me know if something has broken the record. Yes, I know the lower estimate can change based on semantics, but there are a bunch in that range). Although we have some clues as to how sel... Read More

Scientists Discover New Trigger for Immense North Atlantic Plankton Bloom

Across the horizon and miles out to sea toward the north, the Atlantic Ocean's own spring and summer ritual is unfolding: the blooming of countless microscopic plant plankton, or phytoplankton.

In what's known as the North Atlantic Bloom, an immense number of phytoplankton burst into color, f... Read More

New probiotic bacteria shows promise for use in shellfish aquaculture

The use of probiotic bacteria, isolated from naturally-occurring bacterial communities, is gaining in popularity in the aquaculture industry as the preferred, environmentally-friendly management alternative to the use of antibiotics and other antimicrobials for disease prevention. Known to the p... Read More

Millions of diabetics could die of tuberculosis

A third of the world’s human population is infected with a dormant tuberculosis bacteria, primarily people living in developing countries. The bacteria presents a lifelong TB risk. Recent research out of the University of Copenhagen demonstrates that the risk of tuberculosis breaking out is four... Read More

NSABB Members React to Request for Second Look at H5N1 Flu Studies

Members of a U.S. government biosecurity advisory board are offering a range of reactions to the news that they are being asked to take a second look at two controversial flu studies. Some have not previously spoken publicly about the issue, which has sparked a global debate about biosecurity ve... Read More

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