In 6 cases, the initial antibiotic therapy (Cefuroxime (2x), Aminopenicillin + beta-lactamase inhibitor (2x), Clindamycin (1x), Ciprofloxacin (1x)) was changed according to the antibiogram while in 1 patient the aminopenicillin had to be changed due to allergic reaction. Here, LACTB is linked to allergic disease.