RCT comparing quadrivalent influenza vaccines in India

Quick takeaway

Active-controlled RCT evidence in India adults and elders aged 61+ focused on influenza vaccination and tracked immunogenicity and safety endpoints. Direct elder-relevant vaccine trial evidence from India with useful safety and immunogenicity signals.

Why this matters

Direct elder-relevant vaccine trial evidence from India with useful safety and immunogenicity signals.

Key caution

The trial adds stronger causal evidence, but sample size, setting, and follow-up still matter before generalizing widely.