Atlanta, GA — Some 50 million people, or one in six U.S. residents, have been infected since the start of the H1N1 flu pandemic 7 months ago, the CDC has said. Of these, more than 200,000 patients needed inpatient care and almost 10,000 have died. The estimates, which span April through mid-November, are higher than figures released by the CDC in late 2009. The H1N1 pandemic continues to affect younger people disproportionately. The agency said that 1,100 children and 7,500 “younger adults” have died, many of them under age 50. The H1N1 pandemic strain is still the main cause of influenza, the CDC said, although experts are now seeing cases caused by influenza B.