Microbiology and Serology are critical diagnostic tests used to detect infections, immune responses, and other disease-causing agents in the body. Microbiology focuses on identifying bacteria, viruses, fungi, and parasites that may cause infections, while serology tests measure antibodies and antigens in the blood to detect immune responses to infections. Patients should opt for Microbiology and Serology tests when experiencing symptoms of infection or when their doctor suspects a bacterial, viral, or fungal condition.