bacteria

Tag archives for bacteria

Why dentists may have rats to thank

  What does tooth decay have to do with rats? For Neandertals, tooth decay was a rare occurance. Research suggests that tooth decay became more prominent with the development of agriculture. Dr. Ordaz, Stanford School of Medicine, and colleagues analyzed common strains of bacteria (Streptococcus mutans) responsible for causing cavities. They found that the bacteria began expanding exponentially around 10,000…

Training dogs to smell bacteria

Researchers have actually trained a beagle named Cliff to detect the intestinal bacteria Clostridium difficile on patients and in stool samples that were collected from infected patients in the Netherlands. This infection is common in hospitals and long-term treatment facilities. Infection with the contagious C. diff results in diarrhea that has been responsible for the deaths…

Malaria fighting bacteria

Researchers, Jacobs-Lorena et al., at the Johns Hopkins Bloomberg School of Public Health have altered a harmless bacteria (Pantoea agglomerans) naturally found in the midgut of mosquitos to fight malaria by producing and releasing proteins that are toxic to malaria but harmless to mosquitos or humans. Since the gut is where the malaria parasite reproduces,…