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Sick People Smell Bad: Why dogs sniff dogs, humans sniff humans, and dogs sometimes sniff humans

A man can live many lives. Paul Ehrlich has. Once, he was a butterfly biologist. Another time, he wrote the book called The Population Bomb, a book that triggered global conversations about the fate of humanity. Still another, he described the relationship between plants and the animals that eat... Read More

A spike for piercing the cell membrane

Some viruses that infect bacteria (bacteriophages) deliver their DNA into the host cell with an amazing injection machine. The tailed bacteriophages (such as T4, illustrated) store their DNA in a capsid attached to a long tail tube that is surrounded by a sheath. At the bottom of the tube is a b... Read More

High School Senior Presents Poster At American Society for Microbiology 112th General Meeting (press release)

Kathleen Maguire, a Marlborough High School Senior, is presenting a poster at the American Society for Microbiology (ASM) Conference in San Francisco on June 16-19. In order to attend the conference, Maguire became a special member of the society. She is the first high school student to have a p... Read More

TWiV 172: Two can be as bad as one



Hosts: Vincent Racaniello and Kathy Spindler


Vincent ... Read More

TWiV 165: The email zone



Hosts: Vincent Racaniello, Dickson Despommier Read More

Genetic variation in human gut viruses could be raw material for inner evolution

A growing body of evidence underscores the importance of human gut bacteria in modulating human health, metabolism, and disease. Yet bacteria are only part of the story. Viruses that infect those bacteria also shape who we are. Frederic D. Bushman, PhD, professor of Microbiology at the Perelman ... Read More

Moffitt Cancer Center Researchers Discover How Cancer Cells “Hijack” a Mechanism to Grow

Researchers at Moffitt Cancer Center and colleagues at the University of South Florida have discovered a mechanism that explains how some cancer cells “hijack” a biological process to potentially activate cell growth and the survival of cancer gene expression.

Their study appeared in a recen... Read More

Food borne bacteria sickens 8 in Illinois, 93 nationwide

Food safety officials are investigating whether raw fish in sushi and other foods is responsible for a multi-state Salmonella outbreak that has sickened eight people in Illinois.

So far, no deaths have been connected to the strain of the bacteria, which has sent 10 people to the hospital and ... Read More

TWiV 167: It starts with a cough



Hosts: Vincent Racaniello, Dickson Despommier Read More

RNA virus packaging specificity explained?

In 1969 David Baltimore proposed that poliovirus RNA replication is coupled with packaging, in that only those genomes actively replicating will be selectively encapsidated. From an evolutionary standpoint, it is an ingenious requirement to ensure that only virus genomes capable of replication ... Read More

TWiV 188 Letters

Judi writes:


To our TWIV leaders!


If you have a mac with Apps, please go to the app store and download cell images.... I think you'll have a great time going through them.


One other thing - I listened to your show on science reform with interest but I ... Read More

Group urges speedier approvals for badly needed antibiotics

Infectious-disease doctors have proposed a speedier, easier approval process for drug companies developing antibiotics against untreatable illnesses.

The Infectious Diseases Society of America (IDSA) made the proposal today at a hearing of a subcommittee of the US House of Representatives Com... Read More

Killer bird flu? What's behind the controversy over bird flu research

Trine Tsouderos, Chicago Tribune reporter, has published a Q&A with several leading virologists on the controversy surrounding the potential impact of full publication of two studies on the airborne transmissibility of H5N1.

"Media reports about the controversy have been marked by frightenin... Read More

Microbes Capable of Surviving Harsh, Mars-Like Conditions Discovered

Soil samples obtained from South American volcanoes have revealed a smattering of different microbe types that have somehow managed to survive in extreme conditions, the University of Colorado-Boulder (CU-Boulder) announced in a June 8 press release.

According to the university, the scientist... Read More

“Snowing Microbes” On Saturn’s Moon?

Enceladus, Saturn’s 318-mile-wide moon that’s become famous for its ice-spraying southern jets, is on astronomers’ short list of places in our own solar system where extraterrestrial life could be hiding — and NASA’s Cassini spacecraft is in just the right place to try and sniff it out.


On ... Read More

Synthetic Stool a Prospective Treatment for C. Difficile

A synthetic mixture of intestinal bacteria could one day replace stool transplants as a treatment for Clostridium difficile (C. difficile). C . difficile is a toxin-producing bacteria that can overpopulate the colon when antibiotics eradicate other, naturally protective bacteria living there.

... Read More

A viral mashup in snakes

If you know anything about snakes you might be familiar with snake inclusion body disease, or IBD. This transmissible and fatal disease affects snakes of a variety of species but has been best studied in boas. The name comes from the presence of large masses (inclusions) in the cytoplasm of cell... Read More

Killer whales facing an airborne threat

New research shows that killer whales are inhaling bacteria, fungi and viruses once believed to be found only on land. Some of the pathogens are highly virulent. And some are even antibiotic-resistant.

The scientists followed the killer whales by boat, trying to catch the precise moment the a... Read More

Common bacteria may cause colic

A bacteria that is known to be associated with more than 80% of gastric and doudenal ulcers, may be associated with infant colic. The bacteria, Helicobacter Pylori (H.pylori), is found in the lining of the of the stomach wall.

Dr. Abdelrazak Mansour Ali from Al-Azhar University in Cairo, Egyp... Read More

New study maps hotspots of human-animal infectious diseases and emerging disease outbreaks

A new global study mapping human-animal diseases like tuberculosis (TB) and Rift Valley fever finds that an "unlucky" 13 zoonoses are responsible for 2.4 billion cases of human illness and 2.2 million deaths per year. The vast majority occur in low- and middle-income countries.

The report, wh... Read More

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