- Deep Vein Thrombosis (DVT)
- Dementia — Alzheimer’s Disease
- Dengue
- Dental Infection Prevention and Control
- Dermatophyte Infection — Ringworm
- Developmental Disabilities
- Developmental Milestones
- Developmental Screening
- Diabetes
- Diabetes and Influenza
- Influenza
- Dialysis Safety
- Dibenzoxazepine (CR) — see Riot Control Agents
- Dientamoeba fragilis Infection
- Diet and Nutrition — see Nutrition
- Digital & Social Media
- Diphtheria
- Diphtheria Vaccination
- Diphyllobothriasis — see Diphyllobothrium Infection
- Diphyllobothrium Infection
- Director, CDC
- Dirofilaria Infection — see Dirofilariasis
- Dirofilariasis
- Disabilities and Health
- Disaster Epidemiology and Response
- Disaster Science
- Disaster Science Research
- Emergency Responders
- Disasters and Children
- Emergency Preparedness & Response
- Disasters and Mental Health — see Mental Health and Disasters
- Distracted Driving
- Dog and Cat Tapeworm
- Dog Bites
- Dog Heartworm Infection — see Dirofilariasis
- Dog Importation
- Dogs, Infections from
- Domestic Violence — see Intimate Partner Violence
- Down Syndrome
- Dracunculiasis — see Guinea Worm Disease
- Dracunculus medinensis Infection
- Drinking & Driving
- Drinking Water Quality
- Drinking Water — see Water, Drinking
- Drought and Health
- Drowning Prevention
- Drug Service
- Drug Use and Infectious Disease — see Persons Who Use Drugs
- Drug Users — see Persons Who Use Drugs
- Drug-Resistant TB
- Dwarf Tapeworm — see Hymenolepiasis