Analysis of information sources in references of the Wikipedia article "Pandemic H1N1/09 virus" in English language version.
Estimates of deaths caused by the swine flu have grown to nearly 4,000 since April . . . Swine flu has sickened about 22 million Americans since April
Most flu continues to be 2009 H1N1.
An average of about 36,000 people per year in the United States die from influenza-related causes
Estimates of deaths caused by the swine flu have grown to nearly 4,000 since April . . . Swine flu has sickened about 22 million Americans since April