Compare the risks and benefits of the flu vaccine side-by-side and decide for yourself if flu vaccines are a good idea.

Learn some common excuses for not getting the flu vaccine, and some key information relevant to each one. [3:27]

Many people choose to avoid the flu vaccine each year. Review five popular excuses, and how they relate to common misunderstandings about the flu. Rishi is a pediatric infectious disease physician and works at Khan Academy. [7:57]

Learn about the three types of influenza virus (Type A, Type B, and Type C) and what makes them different from one another. Rishi is a pediatric infectious disease physician and works at Khan Academy. [8:16]

Researchers say they may have found an Achilles' heel in the structure of the influenza virus.

Should seniors get the flu vaccine? A new report is discussed in this audio recording showing evidence that the flu shot works for seniors is lacking. [22:10]

Vaccine researcher Gary Nabel discusses the ongoing quest to develop a universal flu vaccine.