14 Apr 2021 --- A combination of BioGaia’s probiotic strains Limosilactobacillus reuteri ATCC PTA 5289 and DSM 17938 may help reduce fever and sore throat pain in children with pharyngitis and tonsillitis – the most common acute respiratory infections (ARIs) in children under five years old.A recent randomized, controlled study published in the journal Beneficial Microbes, reports significant fever reduction and severity of sore throat in children who took the probiotics compared to a placebo group.