The pandemic has killed more people than most, but not all, other viral epidemics in the 20th and 21st centuries

Tests indicate G4 strain of pig-carried H1N1 may have already infected 4.4% of general population, but no evidence yet of human-to-human transmission

9-year-old girl hospitalized in serious condition as officials scramble to deal with demand for vaccines

HMOs say they are ordering more vaccines to meet demand as aggressive strain hits country, amid reports people are being turned back due to shortages

Health services report multifold increase in demand for protection against disease amid early season surge in those seriously stricken by illness