Infectious diseases are a threat to America and the world / Margaret A. Hamburg et al. -- The media exaggerate the risks of infectious diseases / Colin Schultz -- The AIDS pandemic is still a global health threat / Josh Ruxin -- The AIDS pandemic can be eliminated / Clare Wilson -- The threat of a heterosexual AIDS pandemic is over / Jeremy Laurance -- The obesity epidemic poses a global health threat / Rita E. Carey -- The obesity epidemic is a myth / Patrick Basham and John Luik -- The Indian superbug NDM-1 is a growing health threat / Michael Hanlon -- H1N1 was never a serious threat to world health / Daniel J. Ncayiyana -- H1N1 could have posed a serious threat to world health / Mark Honigsbaum -- The government manufactured the H1N1 threat / Karen DeCoster -- The government did not manufacture the H1N1 threat / Sam Vaknin -- Pharmaceutical companies paid health experts to hype the H1N1 threat / Rudi C. Loehwing -- Health experts were not paid to hype the H1N1 threat / Debora MacKenzie -- Requiring mandatory vaccination is dangerous / Associated Press -- Vaccines are safe and effective / Brenda L. Bartlett and Stephen K. Tyring -- Compelling evidence shows that vaccines trigger autism / J.B. Handley -- Vaccines do not cause autism / Kelley King Heyworth -- Vaccination refusal is a right to safeguard personal health / Sherri Tenpenny -- Vaccination refusal endangers public health / Saad B. Omer et al. -- Federal and state authorities are not prepared for a serious pandemic / Stephen E. Flynn and Irwin Redlener -- Americans' concerns about vaccination must be overcome to prepare for future pandemics / Gillian K. SteelFisher et al. -- America is not prepared for bioterrorism attacks / Tara O'Toole -- America is better prepared for bioterrorism attacks / Aaron Katz, Andrea B. Staiti, and Kelly L. MacKenzie -- Nations have not shown willingness to overcome self-interest in fighting pandemics / John Barry.