Podcasts

Watch Latest Video Subscribe to Video Feed

ASM-Live-Banner

twiv_banner

twim_mwsite_badge

bacteriofilesbanner

isbadge

yellowstonelogo

Subscribe Learn More

mts_banner

This Week in Parasitism

a-radio

MicrobeWorld App

appsquarebannerad200x200

Join MicrobeWorld

Subscribe via Email

subscribe

Microbes After Hours

shutdown

Click for more "Microbes After Hours" videos

Featured Image

Featured Video

Crowdsourced Microbes Heading to Station

Supporters

ASM House 200X200

Getting Started with MicrobeWorld

More "How to" Videos:
| |
|

'Living beach ball' is giant single cell

In the late summer of 1882, a ship called the Triton cruised the chilly seas north of Scotland. As it went, it dredged the sea bed for specimens of unknown creatures, under the guidance of the oceanographer John Murray.

Two of the specimens were strange enough that Murray sent them to his col... Read More

Now playing: Viral plaque formation

One of the most important procedures in virology is measuring the virus titer – the concentration of viruses in a sample. A widely used approach for determining the quantity of infectious virus is the plaque assay. In this technique, the spread of progeny viruses released by individually infecte... Read More

MTS43 - Rob Knight - The Microbes That Inhabit Us



In this episode, I speak to Rob Knight, an ... Read More

Study Finds Bacteria in Packaged Greens

In the latest analysis of packaged leafy greens, Consumer Reports found that nearly 40 percent of samples tested contained bacteria consistent with poor sanitation and fecal contamination.

Leafy greens have been under particular scrutiny since late 2009, when the Center for Science in the Pu... Read More

Vaccine-Autism Study Is Retracted

A major British medical journal on Tuesday retracted a flawed study linking the measles, mumps and rubella vaccine to autism and bowel disease.

The retraction by The Lancet comes a day after a competing medical journal, BMJ, issued an embargoed commentary calling for The Lancet to formally re... Read More

Progress Is Slow on Moving Surplus Swine Flu Vaccine to Countries That Need It

There is now so much unused swine flu vaccine in the world that rich nations, including the United States, are trying to get rid of their surpluses. But the world’s poorest countries — a few still facing the brunt of the pandemic — are receiving very little of it.

Of the 95 countries that to... Read More

Why Is It So Difficult to Eradicate Salmonella?

Feed contaminated by salmonella bacteria is a familiar and costly problem for the animal feed industry all over the world. Some types of salmonella have succeeded in establishing themselves in feed and fish meal factories and have persisted there for several years because it has proved impossibl... Read More

Virus Pulls Bait and Switch on Insect Vectors

A common plant virus lures aphids to infected plants by making the plants more attractive, but when the insects taste the plant, they quickly leave for tastier, healthier ones. In the process, the insects rapidly transmit the disease, according to Penn State entomologists.

"The virus improves... Read More

Dogs May Provide an Excellent Model for Understanding Human Complex Diseases

Researchers at Uppsala University and the Swedish University of Agricultural Sciences (SLU) have found several genes that lead to increased risk for an SLE-like autoimmune disorder in dogs. This is the first time scientists have found genes behind such a complex disease.

The study is being pu... Read More

How Virulent Food-Borne Bacteria Listeria Monocytogenes Induces Infected Immune Cells to Sabotage Their Own Defensive Response

Researchers at National Jewish Health have discovered how the virulent food-borne bacteria Listeria monocytogenes induces infected immune cells to sabotage their own defensive response. The studies offer insight into host-pathogen interactions and suggest potential therapeutic targets for food p... Read More

Why Asexual Organisms Are on Their Last Legs

Scientists who study how organisms reproduce know that asexual reproduction is more efficient — for one thing, it’s about twice as fast as sexual reproduction, since every offspring can produce more.

But if the asexual way is so efficient, why do almost all animal species reproduce sexually, ... Read More

Seattle Group Paying F.D.A. for Work on a Pneumococcal Disease Vaccine

A nonprofit organization is paying the Food and Drug Administration to help develop a better vaccine against pneumococcal disease in poor countries.

In the last decade, such vaccines have sharply decreased hospitalizations for the disease in the United States. The bacteria, Streptococcus pneu... Read More

Of Wines and Vines - Managing malolactic fermentation

Wine lovers will delight in this guest blog post on Small Things Considered and adaptation from an article in the January 2010 issue of Wines and Vines by John Ingraham, a retired UC Davis Professor of Microbiology, on how he and his colleagues tamed the "capricious and independent" cycle of mal... Read More

Unique glass microspheres show promise for medicine, energy

Networks of interconnected pores in the shells of the Savannah River National Laboratory’s Porous Walled Hollow Glass Microspheres give the tiny “microballoons” unique capabilities for potential use in targeted drug delivery, hydrogen storage and other uses.

Hollow glass microspheres have be... Read More

Tobacco plant-based treatment thwarts West Nile virus, says study

No vaccine currently exists for West Nile Virus, but a new therapeutic made from tobacco plants has been shown to arrest the infection, according to a new study.

Elderly individuals and those with depressed immunity are particularly vulnerable to West Nile, a mosquito-borne illness that can c... Read More

Ireland - At least 50% of antibiotic use in hospitals is inappropriate

At least 50 per cent of antibiotic use in hospitals is inappropriate, according to a new report from the national Health Protection Surveillance Centre (HPSC) which yesterday published guidelines on proper antimicrobial stewardship in hospitals in Ireland.

The report warns that in addition to... Read More

Henrietta Lacks’ ‘Immortal’ Cells

Medical researchers use laboratory-grown human cells to learn the intricacies of how cells work and test theories about the causes and treatment of diseases. The cell lines they need are “immortal”—they can grow indefinitely, be frozen for decades, divided into different batches and shared among... Read More

Spray-on Science: Liquid Glass protects against everything from bacteria to UV radiation

According the the UK's Daily Telegraph -

"The versatile spray, which forms an easy-clean coating one millionth of a millimetre thick – 500 times thinner than a human hair – can be applied to virtually any surface to protect it against water, dirt, bacteria, heat and UV radiation.

The spra... Read More

Bacteria-killing protein to combat E.coli in red meat

A bacteria-killing protein that would be applied to raw meat during processing to “significantly reduce” the presence of E.coli is under development for the meat industry.

US-based Ecolab Inc announced it has joined forces with AvidBiotics Corps to commericalize its proprietary protein-based ... Read More

Researchers show how Listeria induces infected immune cells to sabotage their own defensive response

In the Feb. 15 issue of the Journal of Experimental Medicine, Laurel Lenz, PhD, and his colleagues report that macrophages infected by the bacteria Listeria release interferon-αβ (IFN- αβ), which makes them and nearby immune cells unresponsive to activation signals. This reduces immune resistanc... Read More

American Society for Microbiology
2012 1752 N Street, N.W. • Washington, DC 20036-2904 • (202) 737-3600

Copyright © American Center for Microbiology 2012. All Rights Reserved.