The shortage of H1N1 swine flu vaccine in some parts of the country continues to be a concern of the federal government's vaccination authorities, immunologist Anne Schuchat said this afternoon during a briefing for bloggers on the pandemic. "This has really been bumpy," Schuchat said as she fielded questions from California and other places where supplies of the vaccine has been extremely difficult for people to find. "As of today, 58.9 million doses of H1N1 vaccine have become available for the states to order." ... read more