CDC Yellow Book
- HACE (high-altitude cerebral edema)
- halofantrine
- hand, foot, and mouth disease (HFMD)
- Hansen disease
- hantavirus
- HAPE (high-altitude pulmonary edema)
- Hawaii, importation of animals
- health counseling, for last minute travelers
- health plans
- Heartland virus
- heat acclimatization
- heat cramps
- heat edema
- heat exhaustion
- heat syncope
- Helicobacter pylori
- helicopter rescue
- helmets [table]
- Hendra virus
- henipaviruses
- Herceptin (trastuzumab) [table]
- herpes simplex virus (HSV) [table]
- HFMD (hand, foot, and mouth disease)
- high-altitude cerebral edema (HACE)
- high-altitude pulmonary edema (HAPE)
- histamine
- histoplasmosis
- Hiva Oa
- Holy See
- homecoming, for aid workers
- homeopathic motion sickness products
- Honduras
- hot climates
- household contacts, of immunocompromised patients
- HSV (herpes simplex virus) [table]
- humanitarian aid workers
- human neoehrlichiosis [table]
- human remains, importation/exportation of
- human tetanus immune globulin (TIG)
- Humira (adalimumab) [table]
- Hungary
- Hurricane Irma
- Hurricane Matthew
- hypersensitivity to vaccines
- hypnotic medications
- hypogammaglobulinemia
- hyponatremia