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Polymicrobial Infections: Perhaps The Rule, Not The Exception

The recent film World War Z describes an apocalyptic event where a rabies-like virus spreads via bite wounds to the majority of Earth’s population and turns them into zombies. Since the world’s leading virologist dies early in the film, it is up to Brad Pitt’s character to find the source and cu... Read More

Pictures Considered # 7. Cocci Divide at The Equator

In 1962 Cole and Hahn published in Science an unassuming sounding paper entitled Cell wall replication in Streptococcus pyogenes. The authors asked the question: do strep cells synthesize their cell wall by intercalating new parts at different sites on their surface or does this take place at on... Read More

Activated Eosinophils in Idiopathic Hypereosinophilic Syndrome

Activated eosinophils in the peripheral blood of a patient with idiopathic hypereosinophilic syndrome showing cytoplasmic clearing, nuclear dysplasia, and the presence of immature forms (100x magnification). Credit: NIAID Taken on June 24, 2013 @http://www.flickr.com/photos/niaid/9125007255/

... Read More

BacterioFiles Micro Edition 130 - Bacteriophages Bind Boogers

This episode: Phages hang out in mucus to ambush bacteria!




Download Episode (6.4 MB, 7 minutes)


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TWiV 245: Writing Principles of Virology



Host: Vincent Racaniello


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Bird flu researchers want to create deadly virus in lab

Researchers said Wednesday they want to create a lab version of a deadly emerging bird flu in order to study a strain that might be more infectious to people. Responding to past concerns about such research, the U.S. government said it will require extra safety measures.

The H7N9 bird flu vir... Read More

A Better Sunscreen From Bacteria? Scientists Find A Pigment That Absorbs UV Light

Sunscreen has protected millions from cancer in the last few decades since its introduction. With innovations, including water-resistant and spray types, the adoption of sunscreen has reached new heights. But recent reports that the chemicals in sunscreen can themselves turn into cancer-causing ... Read More

Minn. firm's new water filter: bacteria

A rural Minnesota water company is experimenting with a new way of treating drinking water -- using bacteria to remove the harmful pollutants.

The Lincoln Pipestone Rural Water System has been using expensive reverse osmosis to clean nitrates and nitrites from its well water. But bacteria occ... Read More

Link between MERS virus and camels worries breeders

Some Saudis are worried that the link between the MERS virus and camels is not clear and that it could affect their livelihood as sellers of camel milk.

Yet the connection between Omani camels and a MERS-like virus has brought attention to the potential hazards of purchasing camel milk that h... Read More

Piscine reovirus—a salmon virus fresh from Norway

From the Department of Wild Salmon: Over 90 percent of B.C. farmed salmon are testing positive for a recently imported Norwegian virus that causes lesions in the hearts of salmon. Should we be concerned about its effects on wild salmon, one of B.C.’s most valuable natural resources?

So we hav... Read More

How Many Microbes Are Hiding Among Us?

Microbes are everywhere—even inside us. But because so many of these bugs won't grow in the lab, scientists have had a tough time figuring out just who they are and how they live. That may soon change. By sequencing the DNA in individual cells, researchers have gotten to know 200 new microbes—an... Read More

How To Rid The Developing World Of Deadly Bacteria? Steam

By making water boil at much lower temperatures, scientists are using steam generated by the sun as a way sanitize things in places where unclean conditions often lead to disease and death.

Up to 2.5 billion people lack access to proper sanitation. They use "flying toilets" to dispose of excr... Read More

Why bacteria ditch nose to go cause trouble

Scientists have identified triggers that turn Streptococcus pneumoniae from harmless colonizer to virulent pathogen.

The bacteria harmlessly colonize the mucous linings of throats and noses in most people, only becoming virulent when they leave those comfortable surroundings and enter the mid... Read More

GM rice delivers antibodies against deadly rotavirus

Researchers have added an antibody to fight rotavirus into the rice genome. A strain of rice genetically engineered to protect against diarrhoeal disease could offer a cost-effective way to protect children in developing countries, according a study published in the Journal of Clinical Investiga... Read More

New Middle Eastern Virus Linked to Camels

Anytime a novel virus infects human populations, scientists focus on tracing its origins. And this time their search led to the humped dromedary.

After a Saudi Arabian national died unexpectedly last September, scientists have been tracking the emergence of a new virus, never before seen in p... Read More

How to Achieve a Well-Balanced Gut: 'Peacekeeper' in the Gut Identified

Creating an environment that nurtures the trillions of beneficial microbes in our gut and, at the same time, protects us against invasion by food-borne pathogens is a challenge. A study published on August 8 in PLOS Pathogens reveals the role of a key player in this balancing act.

SIGIRR is a... Read More

Joseph Leidy

JOSEPH LEIDY – 1823-1891

Joseph Leidy (1823-1891), naturalist, comparative anatomist, paleontologist, and microscopist, was dubbed by his biographer as “the last man who knew everything.” Leidy also made substantial contributions to the field of protozoology and is considered America’s first... Read More

HELPER CELLS APTLY NAMED IN BATTLE WITH INVADING PATHOGENS

By tracking the previously unknown movements of a set of specialized cells, Whitehead Institute scientists are shedding new light on how the immune system mounts a successful defense against hostile, ever-changing invaders.

Central to the immune response is the activity inside structures know... Read More

TWiP 58 letters

Trudy writes:


Dear Vincent and Dickson,


Listening to TWiP on cyclosporiasis. Because I am all too aware of the possible contamination of many crops as a former public health nurse who worked in epidemiology for my state (Florida), I always wash my fruits and v... Read More

TWiP 58: People, parasites, and plowshares



Hosts: Vincent Racaniello and Dickson Despommier


Guest: Cali Despommier

... Read More

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