Conditions list medically reviewed by George Krucik, MD, MBA
Acute HIV infection occurs soon after someone is infected with HIV. Learn about its symptoms, diagnosis, treatment, and prevention.
Dengue fever is a disease that affects much of the tropical region and is caused by one of four dengue viruses. A skin rash between two and five days after the initial…
Infectious mononucleosis, or mono, refers to a group of symptoms usually caused by the Epstein-Barr virus (EBV).
Systemic lupus erythematosus, the most common form of lupus, is a chronic autoimmune disease that can cause severe fatigue and joint pain. Learn more about it.
Fifth disease is common in children. It causes a red rash on the arms, legs, and cheeks, and a virus called parvovirus B19 causes it.
Cellulitis is a common bacterial skin infection. Cellulitis may first appear as a red, swollen area that feels hot and tender to the touch.
MRSA is an infection caused by a type of staph bacteria that's resistant to many different antibiotics. Learn about its symptoms, causes, and treatment.
Rheumatic fever is a complication of strep throat. If it's left untreated, it can cause permanent damage to your heart. Find out about symptoms and treatment.
Lyme disease is an infectious disease that's transmitted to humans through tick bites. Learn how Lyme disease is diagnosed and treated, and learn how to prevent tick…
Leukemia is a cancer of the blood cells. Get the statistics on survival rates, find out the most common symptoms, diagnostic options, and treatments.
Syphilis is a sexually transmitted infection caused by a type of bacteria known as Treponema pallidum. Syphilis can be challenging to diagnose.
An Addisonian crisis occurs when levels of cortisol suddenly drop. Learn more about an Addisonian crisis, including symptoms, risk factors, and treatment.
Ebola disease is a rare, often fatal illness. One of its late-stage symptoms is a bleeding rash over the entire body.
Learn about the causes and symptoms of the West Nile virus.
Erysipelas is a bacterial infection in the upper layer of the skin. Learn about erysipelas symptoms, causes, treatment, and prevention.
Hookworms are parasites that affect the small intestine and lungs. Read more about the symptoms of this infection and treatment options.
Colorado tick fever is a viral infection transmitted through a bite from an infected tick. Learn about Colorado tick fever symptoms, diagnosis, and treatment.
Learn about sarcoidosis and its causes, symptoms, diagnosis, treatment, and potential complications.
Poliomyelitis, or polio, is a highly contagious disease that is caused by a virus that attacks the body's nervous system.
Trichinosis is a disease caused by a roundworm infection. Learn about its symptoms, diagnosis, treatment, and how to prevent it.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.