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Bacterial protein mimics its host to disable a key enzyme

Helicobacter pylori infects up to 90 percent of people in the developing world and causes gastric ulcers and cancers of the gut. Now scientists have revealed a subterfuge used by the bacterium to trick stomach cells into playing along. By injecting a protein into the stomach lining that mimics a... Read More

Mechanism discovered by which body's cells encourage tuberculosis infection

Scientists have discovered a signaling pathway that tuberculosis bacteria use to coerce disease-fighting cells to switch allegiance and work on their behalf. Epithelial cells line the airways and other surfaces to protect and defend the body. Tuberculosis bacteria co-opt these epithelial cells i... Read More

Penn, Georgia Get $14.6M for Pathogen Database

The University of Pennsylvania and the University of Georgia have won a $14.6 million grant from the National Institute of Allergy and Infectious Diseases to expand a pathogen genomic database that serves as a resource for scientists studying infectious diseases, Penn said today.

The Eukaryo... Read More

CDC: About 1 in 6 Americans have had swine flu

Swine flu has sickened about 50 million Americans, and killed about 10,000, according to new estimates released by federal health officials on Thursday.

That means about 1 in 6 Americans have had the illness, said Dr. Thomas Frieden, director of the Centers for Disease Control and Prevention.... Read More

Escherichia coli

Escherichia coli showing lactose fermentation EMB agar. Note green sheen on colony. Read More

North Korea Reports Swine Flu Outbreak

North Korea acknowledged nine cases of swine flu on Wednesday, but relief officials in South Korea reported that dozens of North Koreans had died of the flu.

North Korea’s official news agency, K.C.N.A., said the nine cases had been confirmed in the capital of Pyongyang and in Sinuiju, a town... Read More

Unexpected Weakness in H1N1's Method for Evading Detection by the Immune System

The H1N1 influenza virus has been keeping a secret that may be the key to defeating it and other flu viruses as well.

Researchers at Rice University and Baylor College of Medicine (BCM) have found what they believe is a weakness in H1N1's method for evading detection by the immune system.

... Read More

Coinfecting Viruses and Mycoplasmas Can Appear To Cooperate

Very different kinds of pathogen-in this case, one a virus, the other a mycoplasma- can act as if cooperating when infecting cultured cells, with one augmenting the potency of the other, according to Peter Lidsky and Vadim I. Agol of the Russian Academy of Medical Sciences, Moscow, Russia, and t... Read More

Obama's Open Government Plan Includes Open Access for Research Publications

The White House plans to make data and information from federally-funded research available for public access and use as part of the Open Government Directive that President Barack Obama announced this week.

The administration yesterday posted a notice in the Federal Register seeking comments... Read More

Microscopecam

Every day from 10 AM - 4 PM Eastern Standard Time, the Smithsonian Institution hosts Microtheater: A tremendous array of organisms is too small to be seen with the naked eye. This microscope cam offers an up-close glimpse of such little-known life forms as paramecia, rotifers, amoebas, and volvo... Read More

Researchers Demonstrate Nanoscale X-Ray Imaging of Bacterial Cells

An ultra-high-resolution imaging technique using X-ray diffraction is a step closer to fulfilling its promise as a window on nanometer-scale structures in biological samples. In the Proceedings of the National Academy of Sciences, researchers report progress in applying an approach to "lensless"... Read More

New And Faster Test For Detecting Sepsis-Causing Bacteria

An article published online first and in an upcoming edition of The Lancet reports that identification of sepsis-causing bacteria using a new microarray platform is highly accurate and delivers results an average of eighteen hours faster than the current gold-standard system. It uses techniques ... Read More

Haemophilus haemolyticus

Haemophilus haemolyticus. Blood agar colonies. Read More

Bacteria offer insights into human decision making

Scientists studying how bacteria under stress collectively weigh and initiate different survival strategies say they have gained new insights into how humans make strategic decisions that affect their health, wealth and the fate of others in society.

Their study, published this week in the ea... Read More

Everyday Germs in Childhood May Prevent Diseases in Adulthood

A new Northwestern University study suggests that American parents should ease up on antibacterial soap and perhaps allow their little ones a romp or two in the mud --- or at least a much better acquaintance with everyday germs.

The study is the first to look at how microbial exposures early ... Read More

A Wild Celebration

This year, as you may have noticed, has been one long party in honor of Charles Darwin. That’s now drawing to a close. But don’t put away your glad rags. Next year is also slated to be one long party; this time, in honor of biodiversity. Yes, 2010 is to be an international knees-up for the other... Read More

Fast, accurate urine test for pneumonia possible, study finds

Doctors may soon be able to quickly and accurately diagnose the cause of pneumonia-like symptoms by examining the chemicals found in a patient's urine, suggests a new study led by UC Davis biochemist Carolyn Slupsky.

Pneumonia is a lung infection that annually sickens millions of people in th... Read More

Mundo de los Microbios - Episodio 31

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A continuacion: enfermedad periodóntales, VIH-2, H. pylori en agua potable y microbios en un avión.


Enfermedad periodóntales


Se ha dicho que “el camino al ... Read More

Swine flu may be mildest pandemic ever, researchers say

The first comprehensive study of pandemic H1N1 influenza from April to the end of July indicates that the pandemic may be the mildest ever, assuming that the virus doesn't mutate during the winter and come back stronger than before. The analysis suggests that the swine flu virus might directly c... Read More

H1N1 Influenza Adopted Novel Strategy to Move from Birds to Humans

The 2009 H1N1 influenza virus used a new strategy to cross from birds into humans, a warning that it has more than one trick up its sleeve to jump the species barrier and become virulent.

In a report in the journal Proceedings of the National Academy of Sciences, University of California, Ber... Read More

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