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Why West Nile virus is more dangerous in the elderly

West Nile virus (WNV) is particularly dangerous in older people, who account for a large number of severe cases and deaths caused by the virus. WNV infection turns serious when the virus crosses the blood-brain-barrier and wreaks havoc among nerve cells in the brain. A study published on July 23... Read More

Common Parasite Could Manipulate Our Behavior

Look what the cat dragged in! The parasite Toxoplasma gondii, a common protozoan transmitted by cats, can effect mammalian brain cells in strange ways. In rodents, the parasite has been shown to inhibit fear and actually attract them to the smell of cat urine. Humans can be infected through c... Read More

Scientists Discover First ‘Virological Penicillin’

Chinese researchers have discovered what they say is the first ‘virological penicillin’ – MIR2911, a molecule found naturally in a Chinese herb called honeysuckle.

Honeysuckle (Lonicera japonica) is a well-known Chinese herb. In Traditional Chinese Medicine, it has been used to effectively tr... Read More

Footage From 1976 Documents Discovery of Ebola Virus

In 1976, a group of health workers took a pair of film cameras to what was then known as Zaire and documented their discovery of a new, deadly virus.

Today we know that virus as Ebola.

A 27-year-old Belgian microbiologist named Peter Piot and his colleagues were the first to scientifically... Read More

TWiV 340: No shift, measles

Hosts: Vincent RacanielloDickson DespommierAlan Dove Read More

TWiV 336: Brought to you by the letters H, N, P, and Eye

 Hosts: Vincent Racaniello, Dickson Despommier, Alan Dove, Rich Condit, and Kathy Spindler


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The TWiVsters explore mutations in the interferon pathway associated with severe influenza in a child... Read More

TWiP 87 letters

 


Jan writes:


Hello doctors,


This was indeed not easy to Google; one of my attempts even had a dr oz page as one of search results. Clearly a dead end. However with some persistence I came up with Entamoeba Histolytica.
As for clean water; I ... Read More

Positive clinical results indicate vaccine candidate is highly efficacious against bacterial diarrhea

New results from a safety and immunogenicity study, which included a challenge phase to test efficacy, indicate that a live attenuated enterotoxigenic Escherichia coli (ETEC) vaccine candidate, given in combination with a novel adjuvant, provided significant protection against disease. This repr... Read More

Cholera Bacteria Spear Their Prey to Grab Genes

The bacteria that cause cholera grab genes from other organisms in a particularly predatory and precise way, new research finds: They spear neighboring cells with a kind of poison-tipped spike.

Bacteria often grab genes from other organisms and incorporate that DNA into their own genomes. But... Read More

TWiP 90 letters

 


Christine writes:


Dear Vincent, Dickson and Daniel,


I think the latest case describes cutaneous furuncular myiasis.


The lesion on the young man's buttock is suggestive of a botfly infection with the larvae most likely of the species Derm... Read More

Frozen Poop Pills Fight Life-Threatening Infections

Fecal transplants can be life-saving for people with stubborn bacterial infections, but they're not for the faint of heart. So doctors have come up with a way to make them more palatable – the frozen poop pill.

People infected with Clostridium difficile suffer debilitating diarrhea, but the b... Read More

How a bacterial cell recognizes its own DNA

It may come as a bit of a surprise to learn that bacteria have an immune system - in their case to fight off invasive viruses called phages. And like any immune system - from single-celled to human - the first challenge of the bacterial immune system is to detect the difference between "foreign"... Read More

Bacteria are as individual as people.

Bacteria are as individual as people, according to new research by Professor Peter Young and his team in the Department of Biology at the University of York. Bacteria are essential to health, agriculture and the environment, and new research tools are starting to shed more light on them.

The ... Read More

Thames study: rivers can be a source antibiotic resistance

Rivers and streams could be a major source of antibiotic resistance in the environment.

The discovery comes following a study on the Thames river by scientists at the University of Warwick’s School of Life Sciences and the University of Exeter Medical School.

The study found that greater n... Read More

Yogurt bacteria could replace colonoscopies for cancer detection

Let's face it: colonoscopies are pretty unpleasant. But what if you could eat a spoonful of yogurt to check for cancer rather than enduring that procedure? MIT professor Sangeeta Bhatia is working on engineered bacteria that detects colorectal cancer. Read More

TWiV 343: The silence of the turnips

 Hosts: Vincent RacanielloDickson DespommierAlan Dove Read More

Human tape worm drug shows promise against MRSA in lab

PROVIDENCE, R.I. [Brown University] -- A new study provides evidence from lab experiments that a drug already used in people to fight tapeworms might also prove effective against strains of the superbug MRSA, which kills thousands of people a year in the United States. Read More

Mapping the Bacteria in the NYC Subway (video)

For more than a year, Cornell University's Christopher Mason and his team of researchers have been identifying bacteria in the New York City subway system. And some of the findings might surprise you. Photo: Katie Orlinsky for The Wall Street Journal
Read More

TWiM 102 Letters

Dave writes:


TWIM Comrades--
I first want to compliment you on one of my most listened to podcasts, and one that I actually know what is being presented most of the time.


Now about the term Talmudic.
Do we need a name that is a legal commentary on th... Read More

TWiP 88 letters

 


Robin writes:


Cutaneous leishmaniasis.
CL has been endemic in Italy at a relatively constant level since the 1970s, in the same areas that are endemic for VL. CL is largely underreported to the MoH. Only cases that are diagnosed and treated in hosp... Read More

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