Pathogen natural history, epidemiological knowledge, human behavior and epidemic progression determine whether symptom screening and questionnaires are effective barriers to geographic spread of infection by travelers.
As the equipment needed to perform state-of-the-art research in many areas of biology becomes ever more expensive, Eve Marder worries that researchers in less wealthy institutions might be left behind.
Recordings from the mouse brain as animals learn a lever pressing task reveal how the motor system optimizes skill learning by reducing variability in those aspects of task performance that are essential for achieving a goal.
New mammarenaviruses have been identified from rodents in Cambodia and Thailand, and the Cardamones variant of Wēnzhōu virus has been found in Cambodian patients presenting with fever and respiratory symptoms.
The major evolutionary routes to drug resistance in Salmonella Typhi are associated with fitness benefits, not fitness costs, implying that prudent antimicrobial use will have no effect as a public health intervention in controlling typhoid fever.