Immunogenicity and Safety of Tri Fluvac, a Seasonal Trivalent Inactivated Influenza Vaccine in Healthy Thai Adults

The vaccine will be administered via the intramuscular route; the preferred injection site will be the deltoid of the non-dominant arm.

The comparator licensed influenza vaccine will be administered via the intramuscular route; the preferred injection site will be the deltoid of the non-dominant arm.