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Vaccine efficacy (VE) for respiratory syncytial virus (RSV) vaccines in older adults (age ≥ 60 years) only in serogroup B with lower respiratory tract disease (LRTD) with 3 or more signs/symptoms (I2 0.0%, 95% CI 0.0 to 89.6; tau2 0.0, 95% CI 0.0 to 10.341; Q = 0.64, p = 0.727) [51,52,81].
