Bacteria are microscopic, single-celled organisms that exist in diverse environments, including the human body. While some bacteria are beneficial and essential for digestion, immunity, and other biological functions, others can cause infections and diseases.
Bacteria are classified based on their shape, structure, and function. They reproduce rapidly and can be found in soil, water, air, and living organisms. In healthcare, bacteria play a dual role—some are used in probiotics and medical treatments, while others contribute to antibiotic resistance and infectious diseases.
Bacteria can be categorized into several types based on their role in health and disease:
Bacteria play a crucial role in healthcare, both as essential organisms in the human microbiome and as major contributors to infectious diseases. Beneficial bacteria aid digestion, produce vitamins, and protect against harmful pathogens, making them vital for overall health.
On the other hand, bacterial infections remain a significant challenge in healthcare settings, leading to conditions such as pneumonia, sepsis, and urinary tract infections. The rise of antibiotic-resistant bacteria, such as MRSA and drug-resistant tuberculosis, has made bacterial infections harder to treat, driving the need for new medical interventions, improved infection control measures, and antibiotic stewardship programs.