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Vitamin C can be Helpful in Improving Blood Vessel Constriction

BOC Sciences-Latest study on vitamin C shows that it can play a positive role in improving blood vessel constriction with almost equal effect as walking. In the study, the exercise of a protein which is the main factor of blood vessel constriction was compared with the effect of vitamin C on bl... Read More

TWiV 306: This Week in Ebolavirus


The Grand Masters of the TWiV discuss Ebola virus transmission, air travel from West Africa, Ebola virus infectivity on surfaces, the Dallas Ebola virus patient, and Ebola virus in dogs.

Hosts:  Read More

Paper-based test can quickly diagnose Ebola in remote areas (video)

BOSTON, Aug. 18, 2015 -- When a fever strikes in a developing area, the immediate concern may be: Is it the common flu or something much worse that requires quarantine? To facilitate diagnosis in remote, low-resource settings, researchers have developed a paper-based device that changes color, d... Read More

My first "Mu-Tube" video promoting microbial literacy: What does "microbiology" mean to students?

For my Microbiology course at the University of Puget Sound, I decided to ask my new crop of "micronauts" what the word "microbiology" meant to them on the first day of class. Here are their answers. My wife Jennifer Quinn and I put this together using art from former students. Hopefully, thi... Read More

TWiP 80 letters

Jessica writes:

Hello Dr Racaniello and Despommier,

I recently saw an article about the paper linked below on Science Daily and thought it might be worth a discussion on TWIP. It is about the possibility of bed bugs being a vector for T. cruzi. I would love to... Read More

Guinea reports Ebola-free week, but Sierra Leone has 5 cases

For the first time in more than a year, Guinea passed a week without a new lab-confirmed Ebola case, but the news out of West Africa last week was tempered by a flare-up of activity in Sierra Leone, the World Health Organization (WHO) reported today in its latest update. Read More

Unlikely Element Turns up in Enzyme; Commercial Renewable Fuels Might Ultimately Result

Washington, DC – August 14, 2015 - Tungsten is exceptionally rare in biological systems. Thus, it came as a huge surprise to Michael Adams, PhD., and his collaborators when they discovered it in what appeared to be a novel enzyme in the hot spring-inhabiting bacterium, Caldicellulosiruptor besci... Read More

TWiV 310: From bacteriophage to retroviruses with Ann Skalka

Vincent and Glenn meet up with Ann and talk about her long and productive career in virology, from biochemistry to bacteriophage lambda to retroviruses.

Hosts: Vincent Racaniello and Read More

TWiV 316: The enemy of my enemy is not my friend

Vincent, Alan, Rich and Kathy discuss how interleukin 10 modulation of Th17 helper cells contributes to alphavirus pathogenesis.

Hosts: Vincent Racaniello Read More

Lingering lymphocytes lash out against Leishmania

Immune cells that hang around after parasitic skin infection help ward off secondary attack, according to a study in The Journal of Experimental Medicine. These skin squatters may prove to be the key to successful anti-parasite vaccines. Read More

Portraits of Microbiologists Using Luminous Bacteria as "Paint."

My wife Jennifer Quinn​ hits it out the park: a portrait of Kenneth Nealson​ and the late Woody Hastings "painted" with luminous bacteria, giving them props for the early days of quorum sensing---where the basic principles were first uncovered in bioluminescent microbes. This principle of "aut... Read More

A gut bacterium that attacks dengue and malaria pathogens and their mosquito vectors

Just like those of humans, insect guts are full of microbes, and the microbiota can influence the insect's ability to transmit diseases. A new study reports that a bacterium isolated from the gut of an Aedes mosquito can reduce infection of mosquitoes by malaria parasites and dengue virus. The b... Read More

TWiV 324: Viruses in the miR may appear more numerous

Hosts: Vincent RacanielloDickson DespommierAlan Dove Read More

TWiM 98 Letters


Patrick writes:

Hi Vincent,

I thought you and the rest of the TWiM/TWiP folks would be interested in the following paper: Transferred interbacterial antagonism genes augment eukaryotic innate immune function, published online in Nature this week... Read More

TWiM 104 Letters

Mark writes:

Hello TWiM-aggregate,

Its warm and sunny Spring weather here in California’s Bay Area. The fourth year
of Drought is upon us - please send water.

Speaking of water, below is a humorous incident that could be used to draw
attentio... Read More

Research Could Lead to Protective Probiotics for Frogs

Washington, DC - July 30, 2015 - In research that could lead to protective probiotics to fight the “chytrid” fungus that has been decimating amphibian populations worldwide, Jenifer Walke, PhD, a postdoctoral researcher at Virginia Tech University, Blacksburg, and her collaborators have grown ba... Read More

TWiV 311: Bulldogs go viral

Vincent visits the University of Georgia where he speaks with Zhen Fu and Biao He about their work on rabies virus and paramyxoviruses.


Host: Vincent Racaniello. Guests:  Read More

TWiV 326: Giving HIV a flat tyr

Hosts: Vincent RacanielloAlan Dove, and  Read More

TWiM 97 Letters

Dennis writes:
hi Doc,

A paper just published in nature:


reports an effective antibiot... Read More

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