Definition: The Influenza Vaccine, Live, Intranasal (I-VIN) is a vaccine that contains the influenza virus inactivated and delivered to the nasal passage via a nasal spray or inhalation technique, rather than being given intravenously as an injection. Definition: An I-VIN vaccine is a live viral vaccine that is administered through a nasal spray or inhalation method. This type of vaccine uses the flu virus to stimulate the immune system in the nose and throat. When this virus is introduced into the bloodstream, it can lead to symptoms of influenza, such as fever, coughing, sore throat, and fatigue. The I-VIN vaccine has been developed to help protect children from the common strain of influenza, which affects around 80% of all kids each year in the United States. It also protects adults who have recovered from a recent infection with other strains of influenza or have had a history of flu-like symptoms. This type of vaccine is different from an injection because it does not require a needle to administer it into the bloodstream, making it easier and more convenient for people who may have difficulty breathing or swallowing.
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