What are the two types of bacteria?

Bacteria can be classified into two primary categories based on their relationship to human health: pathogenic and non-pathogenic. Pathogenic bacteria are those that can cause disease and infections in humans and other living organisms. They are responsible for various illnesses, ranging from mild infections to serious health conditions. On the other hand, non-pathogenic bacteria are generally harmless and can even be beneficial. These bacteria often play essential roles in processes such as digestion and nutrient cycling, and they can contribute to maintaining a healthy microbiome.

The other classifications mentioned, such as aerobic and anaerobic, refer to how bacteria respire and process oxygen, but do not directly address their impact on health. Similarly, viral and fungal organisms are different types of pathogens and not classifications of bacteria. Detrimental and beneficial serves as a broad categorization but does not focus specifically on the distinction of bacteria related to health implications. Thus, the most relevant and accurate classification of bacteria in terms of infection control is indeed pathogenic and non-pathogenic.