👉 Infection, a critical aspect of human and animal health, refers to the invasion of the body by pathogenic microorganisms such as bacteria, viruses, fungi, or parasites, which can cause disease. Among the various types of infections, bacterial infections are particularly common and diverse, often leading to conditions like pneumonia, urinary tract infections, and strep throat. Viral infections, on the other hand, include illnesses such as the common cold, influenza, and HIV/AIDS, affecting multiple systems in the body. Fungi can cause infections ranging from superficial skin conditions to severe systemic diseases, especially in immunocompromised individuals. Antimicrobial treatments, including antibiotics for bacterial infections and antivirals for viral ones, are crucial in managing these conditions. However, the rise of antibiotic resistance and the need for targeted therapies highlight the importance of understanding and addressing the specific mechanisms of each type of infection to develop effective prevention and treatment strategies.