1.   It uses a disabled version of the live influenza virus, instead of the killed virus found in traditional vaccines.

2.   Salk never lost faith in killed virus polio vaccine and continued to champion its cause all his life.

3.   Standard vaccines are made from killed virus.

4.   The oral vaccine was used for so long because it had a public health benefit that the killed virus does not.

5.   The vaccine is prepared with killed virus that cannot multiply in the body.

6.   The vaccine itself is made from killed virus.

7.   Those are the killed viruses used in the vaccines.

8.   Salk became a hero to millions of Americans when he ignored scientific doubters and used killed virus to develop the first polio vaccine.

9.   Salk modeled his AIDS vaccine after his polio vaccine, using killed AIDS virus.

10.   The killed virus is then added to a chemical that helps the immune cells recognize an invader, remember what it looks like and fight it off.