Lacticaseibacillus casei

Lacticaseibacillus casei is an organism that belongs to the largest genus in the family Lactobacillaceae, a lactic acid bacteria (LAB), that was previously classified as Lactobacillus casei. This bacteria has been identified as facultatively anaerobic or microaerophilic, acid-tolerant, non-spore-forming bacteria.

This species is a non-sporing, rod-shaped, gram positive microorganism that can be found within the reproductive and digestive tract of the human body. Since L. casei can survive in a variety of environmental habitats, it has and continues to be extensively studied by health scientists. Commercially, L. casei is used in fermenting dairy products and its application as a probiotic.

In bacteraemia, it is regarded to be similar in pathogenicity to Lactobacillus and associated with infective endocarditis.