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Saturday, January 2, 2016

Bacteria Research: Superbug colony behaviors revealed in time lapse video ♦ Researchers identify areas of plague risk in western United States ♦ Lifestyle switching: Bacillus cereus is able to resist certain antibiotic therapies

Superbug colony behaviors revealed in time lapse video A well-known 'superbug' which was thought to have been a static or non-motile organism has been observed showing signs of active motility.
Old drugs, new tricks: Medications approved for other uses also have antibiotic action A number of drugs already approved to treat parasitic infections, cancers, infertility and other conditions also show promise as antibiotic agents against staph and tuberculosis infections, according to a new study. Because these agents act against multiple targets within the bacteria, it may be harder for bacteria to develop resistance.
Researchers identify areas of plague risk in western United States Researchers have identified and mapped areas of high probability of plague bacteria in the western United States. This investigation predicted animal plague occurrence across western states based on reported occurrences of plague in sylvan (wild) and domestic animal hosts. Plague is a disease caused by Yersinia pestis, a bacterium found in rodents and their fleas in many areas around the world.
Lifestyle switching: Bacillus cereus is able to resist certain antibiotic therapies The pathogenic bacterium Bacillus cereus causes vomiting and diarrhea as well as systemic and local infections.Researchers have reported that B. cereus, following contact with certain antibiotics, can switch into a special slowed-down mode. The bacteria then form small colony variants that are difficult to diagnose and almost impossible to treat with certain antibiotics. This discovered mechanism may provide an alternative explanation for antibiotic resistance.

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