An Infectious Disease specialist is a doctor of internal medicine who is qualified as an expert in the diagnosis and treatment of infectious diseases. They also counsel healthy people who plan to travel to countries where there is an increased risk for infections not common in the U.S.
ID specialists have expertise in infections of the sinuses, heart, brain, lungs, urinary tract, bowel, bones, and pelvic organs. Their extensive training focuses on all kinds of infections, including those caused by bacteria, viruses, fungi, and parasites. Many ID physicians also specialize in treating patients with infections due to human immunodeficiency virus (HIV).
Along with their specialized knowledge comes a particular insight into the use of antibiotics and their potential adverse effects. ID specialists also have additional training in immunology (how the body fights infections), epidemiology (how infections spread), and infection control.