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New research shows that epidemics of dengue—caused by a mosquito-borne virus—across southeast Asia appear to be linked to the abnormally high temperatures brought by the El Niño weather phenomenon. Read More

Kirby-Bauer disk diffusion

Kirby-Bauer disk diffusion susceptibility test on coagulase-negative Staphylococcus aureus and E.coli grown on Mueller-Hinton agar with tetracycline (30 µg), cephalothin (30 µg), erythromycin (15 µg), chloramphenicol (30 µg), vancomycin (30 µg), penicillin (10 µg), streptomycin (10 µg), and novo... Read More

Evolutionary war between microorganisms affecting human health, IU biologist says

BLOOMINGTON, Ind. -- Health experts have warned for years that the overuse of antibiotics is creating "superbugs" able to resist drugs treating infection. Read More

Stopping malaria in its tracks

A new drug acts as a roadblock for malaria, curing mice of established infection, according to a study in The Journal of Experimental Medicine. Treatment was not associated with obvious side effects, suggesting that the drug may also be safe and effective in humans. Read More

Gram-negative rods – Morganella morganii species

Gram-negative rods – Morganella morganii species (approx X1000). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Red algae Scagelia

Red algae Scagelia, showing reproductive tetraspores and golden diatoms. 2nd place winner of Olympus BioScapes photomicrography contest 2012.

Credit: Dr. Arlene Wechezak, Anacortes, Washington Read More

Absidia sp.

Absidia sp. Unstained, interference phase Read More


Simple stain done on an unknown bacteria, showing feathery rhizoid growth on TSA after a 48 hr incubation at 37 degree’s C, isolated from a floor swab. Single bacillus and diplobacillus can be seen though out. Read More

Extreme Life Thrives Where the Livin’ Ain’t Easy

Wired magazine has put together an 8-part image gallery that matches the extremophile microbe with it's environment.

"Once upon a time, scientists routinely found life in places where it wasn’t supposed to exist. That doesn’t happen anymore, and not because the pace of discovery has s... Read More

Expression of a single gene lets scientists easily grow hepatitis C virus in the lab

Worldwide, 185 million people have chronic hepatitis C. Since the late 1980s, when scientists discovered the virus that causes the infection, they have struggled to find ways to grow it in human cells in the lab -- an essential part of learning how the virus works and developing new effective tr... Read More

Single dose Ebola vaccine is safe and effective in monkeys against outbreak strain

National Institutes of Health (NIH) scientists report that a single dose of an experimental Ebola virus (EBOV) vaccine completely protects cynomolgus macaques against the current EBOV outbreak strain, EBOV-Makona, when given at least seven days before exposure, and partially protects them if giv... Read More

Researchers develop world's most sensitive test to detect infectious disease, superbugs

Infectious diseases such as hepatitis C and some of the world's deadliest superbugs--C. difficile and MRSA among them--could soon be detected much earlier by a unique diagnostic test, designed to easily and quickly identify dangerous pathogens. Read More

Crime-scene compound may be newest tool in fight against malaria

The compound that detectives spray at crime scenes to find trace amounts of blood may be used one day to kill the malaria parasite. Read More

BacterioFiles 213 - Bird Bacteria Bolster Babies

This episode: Hoopoes inoculate their eggs with protective bacteria!

(6.5 MB, 7 minutes)

Show notes: 
News item/ Read More

Activated Sludge

Activated sludge. Note the bacterial rods and filament within the floc. (5000X) Read More

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

Mycoplasma arthritidis. Light micrograph. Crystal violet methylene blue strain. Note colonial morphology and classic 'fired-egg' appearance of isolated colony after approximately 10 days worth of growth on agar

mycoplasma arthritidis. Light micrograph. Crystal violet methylene blue strain. Note colonial morphology and classic 'fired-egg' appearance of isolated colony after approximately 10 days worth of growth on agar Read More

New method to treat antibiotic resistant MRSA: Bacteriophages

MRSA is bad news. If you've never heard of it, here's what you need to know: It's pronounced MER-suh, it's a nasty bacterial infection and it can cause serious disease and death. Read More

SEM showing bacteria in close association with human intestinal brush border cells (12000X)

SEM showing bacteria in close association with human intestinal brush border cells (12000X) Read More

Mycobacterium smegmatis

Streak plate of Mycobacterium smegmatis grown on TSA for 96 hrs. Read More
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