- H3N2v influenza
- Variant Viruses – see Influenza
- H5N1 — see Avian Influenza
- Haemophilus influenzae Disease
- Hand Hygiene for Healthcare Professionals
- Hand Hygiene — see Clean Hands
- Hand, Foot, and Mouth Disease (HFMD)
- Handwashing — see Clean Hands
- Hansen’s Disease
- Hantavirus
- Hard Tick Relapsing Fever (HTRF) — see Tick and Louse-borne Relapsing Fevers
- Harmful Algal Bloom (HAB)-Associated Illness (HAB)
- Harmless Intestinal Protozoa
- Hazardous Drug Exposures in Healthcare
- Hazardous Waste Sites
- Hazards to Outdoor Workers — see Insects and Scorpions
- Head Lice
- HEADS UP
- Health Alert Network (HAN)
- Health Code, Model Aquatic
- Health Department Accreditation
- Health Disparities in HIV/AIDS, Viral Hepatitis, STDs, and TB
- Health Disparities — see Minority Health
- Health Equity
- Health Equity Guiding Principles for Inclusive Communication
- Health Hazard Evaluations (HHEs)
- Health Information for International Travel — see Yellow Book
- Health Insurance Portability and Accountability Act — see Privacy Legislation and Regulations
- Health Literacy
- Health Security — see Global Health Security
- Health Statistics, CDC National Center for
- Health, Disabilities and — see Disabilities and Health
- Health, Social Determinants of — see Social Determinants of Health
- Health, United States
- Healthcare Infection Control Practices Advisory Committee (HICPAC)
- Healthcare News from The Division of Laboratory Science and Standards
- Healthcare Workers
- Emergency Medical Services Workers
- Healthcare-Associated Infections (HAIs)
- Healthcare-associated Infections in Long-Term care Facilities — see Long-Term Care Facilities, Infection Prevention in (LTCFs)
- Healthcare-associated Infections Prevention for Healthcare
- Healthy Aging — see Aging
- Healthy Drinking Water — see Drinking Water Quality
- Healthy Joints
- Healthy People
- Healthy Pets, Healthy People — see Animal-Related Diseases
- Healthy Schools
- Healthy Schools — see BAM! Body and Mind
- Healthy Swimming
- Healthy Weight
- Healthy Youth
- Hearing
- Hearing Impairment — see
- Hearing Loss in Children
- Hearing Loss, Noise-Induced
- Hearing Loss, Occupational
- Heart Disease
- Heart Disease and Family Health History and Familial Hypercholesterolemia
- Heart Disease in the Workplace
- Heartland Virus Infection
- Heat Stress
- Hemodialysis Safety — see Dialysis Safety
- Hemolytic Uremic Syndrome (HUS)
- Hemophilia
- Hemophilia Treatment Centers (HTC)
- Hemorrhagic Fevers, Viral — see Viral Hemorrhagic Fevers (VHFs)
- Hendra Virus Disease (HeV Infection)
- Hepatitis A Vaccination
- Hepatitis B Vaccination
- Hepatitis, Viral — see Viral Hepatitis
- Herbicides — see National Report on Human Exposure to Environmental Chemicals
- Hereditary Bleeding Disorders — see Hemophilia
- Hereditary Breast and Ovarian Cancer
- Hereditary Colorectal (Colon) Cancer
- Hereditary Hemochromatosis
- Hereditary Hemorrhagic Telangiectasia (HHT)
- Heroin
- Herpes B virus — see B virus Infection
- Herpes Simplex Virus Infection — see Genital Herpes
- Herpes Zoster Vaccination — see Shingles Vaccination
- Herpes Zoster — see Shingles
- Herpes, Genital — see Genital Herpes
- Herpesvirus B — see B virus Infection
- Herpesvirus simiae — see B virus Infection
- Hib disease
- Hib Vaccine (Haemophilus influenzae Serotype b Vaccination)
- Hierarchy of Controls
- High Blood Pressure
- Histoplasma Infection — see Histoplasmosis
- Histoplasmosis
- Histoplasmosis in the Workplace
- History of CDC
- HIV
- HIV, Viral Hepatitis, STD & Tuberculosis Prevention in Pregnancy
- HIV/AIDS — see HIV
- Homicide and Violence Prevention
- Hookworm, Human — see Soil-Transmitted Helminths
- Hookworm, Zoonotic — see Zoonotic Hookworm
- Horses, Infections from
- Hospital and Inpatient Care Data — see National Hospital Discharge and Ambulatory Surgery Data
- Hot Tub Rash
- HPV and Cancer
- Human Exposure to Environmental Chemicals, National Report on — see National Report on Human Exposure to Environmental Chemicals
- Human Immunodeficiency Virus — see HIV
- Human Metapneumovirus
- Human Papillomavirus Infection (HPV Infection)
- Human Papillomavirus Vaccination (HPV Vaccination)
- Human Papillomavirus Vaccine Safety Reports — see Gardasil Vaccine Safety Reports
- Human Parainfluenza Viruses (HPIV)
- Human Research Protection Program — see Institutional Review Boards
- Human Subjects — see Institutional Review Boards
- Human Tapeworm
- Hurricanes
- Hydatid Disease — see Echinococcosis
- Hydrofluoric Acid — see Hydrogen Fluoride
- Hydrogen cyanide — see Cyanide
- Hydrogen Fluoride
- Hygiene & Sanitation, Global — see Global Water, Sanitation, & Hygiene (WASH)
- Hymenolepiasis
- Hymenolepis Infection — see Hymenolepiasis
- Hypertension — see High Blood Pressure
- Hyperthermia
- Hypertrophic Cardiomyopathy (HCM)
- Hypothermia
It's never too early or too late to work towards being the healthiest you.