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MWV Episode 94 - TWiM #99: Careers in Biodefense
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Ancient Viruses Gain New Functions in the Brain

If thinking about the billions of bacteria taking up residence in and on your body gives you the willies, you probably won’t find it comforting that humans are also full of viruses. These maligned microbes are actually intertwined in the very fibers of our being—about 8 percent of our genetic ma... Read More

Viroids, infectious agents that encode no proteins

Genomes of non-defective viruses range in size from 2,400,000 bp of dsDNA (Pandoravirus salinus) to 1,759 bp of ssDNA (porcine circovirus). Are even smaller viral genomes possible? The subviral agents called viroids provide an answer to this question.

Viroids, the smallest known pathogens, ar... Read More

E. coli gram stain

Gram stain of E. coli showing characteristic G- rods. Read More

BacterioFiles 199 - Prokaryote Protein Provokes Problem

This episode: A protein from gut bacteria has been tentatively linked with a human protein related to eating disorders!


(11.4 MB, 12.4 minutes)


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China battles virus that has killed two pandas and left third critical

A deadly virus has claimed the lives of two of China's beloved giant pandas and left a third in critical condition.

Chinese state media reported this week that veterinarians are using antiviral therapy to treat five-year-old Feng Feng, after medical tests showed serious damage to the panda's ... Read More

Ebola Virus Mutated From Forest Encroachment, Says Disease Specialist

The Ebola virus has proven deadly to both people and animals.

The epidemic that started in 2014 has so far taken the lives of over eight thousand people in West Africa. The virus also killed an estimated 5,500 gorillas in the Lossi Sanctuary of the Republic of Congo in 2003. But scientists sa... Read More

Middle East respiratory syndrome coronavirus (MERS-CoV) – Oman

Between 7 and 10 January 2015, the National IHR Focal Point of Oman notified WHO of 2 additional cases of Middle East respiratory syndrome coronavirus (MERS-CoV) infection, including 1 death.

Click 'read more' for details of the cases. Read More

Bacteria Can't Cling to 'Repulsive' New Surface

Bacteria can’t stick to a new type of nanoscale surface that could prove useful in food processing, medical, and shipping industries.

The technology uses an electrochemical process called anodization to create nanoscale pores that change the electrical charge and surface energy of a metal sur... Read More

TWiV 320: Retroviruses and cranberries

Vincent speaks with John Coffin about his career studying retroviruses, including working with Howard Temin, endogenous retroviruses, XMRV, chronic fatigue syndrome and prostate cancer, HIV/AIDS, and his interest in growing cranberries.


Host:  Read More

Unknown Fungal Contaminant

Unknown Fungal Contaminant found on TSA plate that had been refrigerated for 1 month. Colony was raised in the center with deep groves around the colony. Green spore formation was seen in the middle with white non-spore forming hyphae towards the edges. Read More

Aquaspirillum serpens

A simple stain done on a stock culture of Aquaspirillum serpens to look at cell shape. This culture was grown in TSB at room temperature, ~21 degrees C, for several months. Aquaspirillum is a slow grower normally found in pond water. A characteristic spiral rod can be seen in the center of ... Read More

Antibiotics in Blood Can Make Malaria Mosquitoes Mightier

It's well known that antibiotics can disrupt our gut bacteria. But when mosquitoes snack on blood laced with antibiotics, the same can happen to their microbiome. And that depletion of gut bacteria actually increases mosquitoes' susceptibility to the malaria parasite. Meaning they may be more li... Read More

Universal Flu Vaccine Soon a Reality?

A flu vaccine that works against all flu viruses and provides protection for at least two decades is getting closer to reality, according to scientists at Mount Sinai Health System.

The organization’s vaccine would offer better and broader and longer-lasting protection against seasonal influe... Read More

New research reveals that a species of bird 'paints' its own eggs with bacteria which protect the embryo

Researchers from the University of Granada and the Higher Council of Scientific Research (CSIC) have found that hoophoes cover their eggs with a secretion produced by themselves, loaded with mutualistic bacteria, which is then retained by a specializad structure in the eggshell and which increas... Read More

Microbiology: Here's looking at you, squid

The aquarium looks empty, but there is something in it. A pair of eyes stick out from the sandy floor, and their owner is easily scooped up into a glass bowl. At first, the creature looks like a hazelnut truffle — small, round and covered in tiny flecks. But with a gentle shake, the flecks of sa... Read More

Cold Plasma Treatment May Reduce Risk of Norovirus Transmission

Treating surfaces with cold atmospheric pressure plasma (CAPP) may reduce the risk of transmitting norovirus, a contagious virus leading to stomach pain, nausea and diarrhea, according to a new study.

Click "source" to read more. Read More

The beauty and the Yeast

Negative staining of S. cerevisieae with nigrosin 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

How E. coli passes safely through stomach acid

In some parts of the world, many small children become infected with severe diarrhea which often proves fatal. The condition is usually caused by strains of Escherichia coli (commonly known as E. coli) bacteria, and bacteria of the genus Yersinia. These bacteria attach themselves to the wall of ... Read More

DNA ‘smart glue’ could someday be used to build tissues, organs

DNA molecules provide the “source code” for life in humans, plants, animals and some microbes. But now researchers report an initial study showing that the strands can also act as a glue to hold together 3-D-printed materials that could someday be used to grow tissues and organs in the lab. This... Read More
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