A case report of co-isolation of Lactobacillus delbrueckii and Candida albicans from blood cultures of an elderly woman with diabetes mellitus.

The aim of this study is to describe a rare case of dual isolation of Candida albicans and Lactobacillus delbrueckii from blood cultures of an 86-year-old female patient. The patient, an elderly individual, had a medical history remarkable for diabetes mellitus, which was currently being managed with an SGLT-2 inhibitor. The patient exhibited elevated fevers, which were attributed to candidemia and bacteremia caused by Lactobacillus delbrueckii. The patient's candidemia originated from a urinary tract infection. The isolation of Lactobacillus delbrueckii in three sets of blood cultures was linked to the regular consumption of yogurts, some of which were past their expiration date. The patient's bacteremia may be attributed to the ingestion of yogurts, which could have facilitated bacterial translocation from the gastrointestinal tract to the systemic circulation.