Neither the flu shot nor the spray vaccine is 100 percent protective.

The nasal spray vaccine is safe for women after they have delivered, even if they are nursing.

However, you cannot get the flu from the nasal spray vaccine.

If the nasal spray vaccine is used, contact with anyone in this high-risk group should be avoided for 7 days.

Because the nasal spray vaccine is more expensive than a flu shot, it may not be covered by your health insurance plan.

The viruses in the nasal spray vaccine do not cause the flu.

MedImmune, which makes a nasal spray vaccine, has sold 2.5 million doses so far.

The nasal spray vaccine is not recommended for people younger than 2 or older than 49.

The nasal spray vaccine is approved for adults up to age 49 who are in good health and not pregnant.

The nasal spray vaccine is approved for use by healthy people who are 2 to 49 years old.