Comparison of antibody responses and reactivity of "Alice" and WRL 105 strain live influenza vaccines.

Groups of 45 adult volunteers were vaccinated intranasally with a single dose of either "Alice" or WRL 105 strain live influenza vaccines. Seroconversion rates against A/Scotland/840/74 were significantly greater following administration of WRL 105 but seroconversion rates against A/England/42/72, A/Port Chalmers/1/73, A/Finland/4/74, A/Victoria/3/75, and A/England/864/75 did not differ significantly between the two vaccines. Poor antibody responses were elicited by both "Alice" and WRL 105 strains against A/Victoria/3/75 and A/England/864/75. No severe reactions followed the administration of either vaccine.