Category

Children and Teenagers, Infections, Skin, Hair and Nails

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Could that itchy, tickly feeling on your head be head lice? Learn about these tiny insects, such as how to tell if you have them, and how to treat it.

Helicobacter pylori Infections

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H. Pylori is a bacterium that can infect the stomach. Being infected is associated with an increased risk of developing peptic ulcers. Learn more.

Hemorrhagic Fevers

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Infections

Viral hemorrhagic fevers are a group of illnesses caused by four families of viruses including Ebola and Marburg, Lassa fever, and yellow fever.

Hepatitis

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The word "hepatitis" means inflammation of the liver. There are five main hepatitis viruses (A, B, C, D or E). Learn about the different types here.

Hepatitis A

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Hepatitis A virus can infect people who accidentally ingest fecal matter in contaminated food or water or through personal contact. More on HAV here.

Hepatitis B

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Hepatitis B virus is a contagious liver infection spread from person-to-person via blood or body fluids. Who is at risk for HBV? Read about it here.

Hepatitis C

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Hepatitis C (HCV) is virus that causes liver inflammation. It usually spreads through contact with blood from someone who has HCV. It can be acute or chronic.

Herpes Simplex

Female Reproductive System, Infections, Male Reproductive System, Mouth and Teeth, Sexual Health Issues

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Learn about herpes simplex, a contagious infection caused by herpes simplex virus (HSV). Oral herpes affects the mouth. Genital herpes affects the genitals.

Histoplasmosis

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Infections

Histoplasmosis is a disease caused by a fungus (or mold) called Histoplasma. Learn about symptoms and treatment.

HIV

Immune System, Infections

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HIV (human immunodeficiency virus) attacks the body’s immune system. There is no cure but it can be treated with medicines. To know if you have HIV, get tested.

HIV and Infections