FDA: Do Not Use Jet Injectors with Flu Vaccines

Jet injectors should not be used to administer any immunization except the measles, mumps, and rubella vaccine, the FDA reminded healthcare providers on Friday.

The agency issued the notification in response to queries about using injector devices with flu vaccines, which are approved for administration only via needle injection or intranasal spray. Jet injectors could change the characteristics of a vaccine, the agency said, and there are no data available on their safety or efficacy with vaccines other than MMR.