Resistant Bacteria Protect The Colony
In the war against antibiotics, bacteria aren't selfish. According to a new report from Howard Hughes Medical Institute (HHMI) researchers, a handful of resistant pathogens can protect an entire colony. Prevailing wisdom held that antibiotic resistance works only on an individual level: a bacterium acquires a genetic mutation that confers protection against a drug, allowing it to survive and reproduce. Eventually, as vulnerable bacteria die, the mutant's stronger progeny repopulate the colony... (Source: Health News from Medical News Today)
Travel-Associated Dengue Surveillance -- United States, 2006-2008
This new study gives the latest data on dengue fever, and how it can best be diagnosed. Morbidity Mortality Weekly Report (Source: Medscape Today Headlines)
