Learned helplessness as a technical term in animal psychology and related human psychology means a condition of a human being or an animal in which it has learned to behave helplessly, even when the opportunity is restored for it to help itself by avoiding an unpleasant or harmful circumstance to which it has been subjected.
The number of swine flu cases is rising rapidly and experts are warning in the worst-case scenario 30% - or one in three of the UK population - could become infected and up to 65,000 people could die this winter. These sound like big, scary numbers, but what do they actually mean and how have they been calculated?
Wikis, blogs and podcasts: a new generation of Web-based tools for virtual collaborative clinical practice and education BMC Medical Education 2006, 6:41
India, Bangladesh, Vietnam and mainland China also experienced new outbreaks of H5 N1 influenza in December. During the same period, four new human cases - in Egypt, Cambodia and Indonesia - were reported to the World Health Organization. A 16-year-old girl in Egypt and a 2-year-old girl in Indonesia have died.
HMPV infection incidence ranged from 2.2% to 10.5% in outpatient cohorts. Infections were asymptomatic in at least 38.8% of each of these cases. Symptoms when apparent were typical of upper respiratory tract infection.