Effectiveness Assessment of Vaccinating Schoolchildren Against Influenza

Phase 4 Completed 1742 enrolled Butantan Institute

RandomizedParallel-groupTriple-blindPrevention

Vaccinating schoolchildren against influenza would prevent the disease among non-vaccinated household members.

Evaluation	Drug	Modality	Dose	Route
Subject	Influenza vaccine	Vaccine	0.5 ml	Intramuscular
Background	Meningococcal C conjugate vaccine	Vaccine	0.5 ml	Intramuscular
Background	Varicella vaccine	Vaccine	0.5 ml	Intramuscular