What type of bacteria does the Enterobacteriaceae family include?

The Enterobacteriaceae family encompasses a diverse range of bacteria that includes both harmless and pathogenic species. This family is widely known for its members that inhabit the intestinal tract of humans and animals, with many being integral to normal gut flora and playing a role in digestion and immune function. However, the family also includes well-known pathogenic strains that can cause various infections, such as Escherichia coli (some strains can lead to gastroenteritis and urinary tract infections), Salmonella, and Klebsiella, among others.

The diversity of the Enterobacteriaceae family exemplifies the complexity of microbial life, where some bacteria contribute positively to host health, while others are capable of causing disease. This characteristic of harboring both types of bacteria is essential in understanding microbiology, as it highlights the balance between beneficial and harmful microorganisms within different environments, particularly in the human body.