The temporary halt by the FDA Advisory panel is over. This intra-nasal flu vaccine is apparently even more controversial than regular flu shots. For one thing it is a live virus. Apparently there is a higher risk of developing a Bell's palsy with using it as well.
Nasal Spray Flu Vaccine Ready for Launch
MedImmune Inc. will soon launch its nasal spray flu vaccine, the first needle-free flu vaccine, surrounded by a $25 million direct-to-consumer marketing campaign, the largest ever for a vaccine.
The nasal vaccine, called FluMist, contains a live virus while the standard shot contains a dead virus. The live virus could pose a threat to those with weakened immune systems, so FluMist is approved only for healthy people between the ages of 5 and 49.
Washington Post September 10, 2003 (Free Registration Required)