A probiotic containing L. plantarum and P. acidilactici strains for treating upper respiratory infection in children aged 6 months to 5 years: a randomized, double-blind trial

• In children with URI with pharyngitis, as diagnosed by a specialist, intervention with said probiotic formula reduced the duration both of fever and of pain/discomfort, compared to placebo. Results were robust to sensitivity analyses by age, sex, number of recent URIs, and by most prevalent causative viruses in the study population.