R
- RA (Rheumatoid Arthritis)
- Rabies
- Rabies Vaccination
- Raccoon Roundworm Infection [Baylisascaris Infection]
- Radiation Emergencies
- Radiation Studies
- Radio Frequency Fields (RF) — see Electric and Magnetic Fields
- Rapid Influenza Diagnostic Testing Training
- Rat-Bite Fever (RBF) [Streptobacillus moniliformis Infection]
- Raw Milk [Unpasteurized Milk]
- RBF (Rat-Bite Fever)
- Recalled Vaccines
- Records Notices, System of — see System of Records Notices
- Recovery Act
- Recreational Water — see Water, Recreational
- Recreational Water Illnesses (RWI)
- Refugee, Immigrant, and Migrant Health — see Immigrant, Refugee, and Migrant Health
- Registry Plus™—Software Programs for Cancer Registries
- Regulation, Legislation and — see Legislation and Regulation
- Relapsing Fever, Louse-borne (LBRF)
- Relapsing Fever, Tick-borne (TBRF)
- Reporting Vaccine Reactions — see Vaccine Adverse Event Reporting System
- Reproductive Health
- Reptiles, Infections from
- Republic of Armenia — see Armenia
- Republic of Azerbaijan — see Azerbaijan
- Republic of Benin — see Benin
- Republic of Burundi — see Burundi
- Republic of Chad — see Chad
- Republic of Fiji — see Fiji
- Republic of Guinea — see Guinea
- Republic of Guinea-Bissau — see Guinea-Bissau
- Republic of Hungary — see Hungary
- Republic of Iraq — see Iraq
- Republic of Kazakhstan — see Kazakhstan
- Republic of Korea — see South Korea
- Republic of Malta — see Malta
- Republic of Moldova — see Moldova
- Republic of Niger — see Niger
- Republic of Paraguay — see Paraguay
- Republic of South Sudan — see South Sudan
- Republic of Suriname — see Suriname
- Republic of Tajikistan — see Tajikistan
- Republic of the Congo — see Congo
- Republic of the Gambia — see Gambia
- Republic of the Sudan — see Sudan
- Republic of Trinidad and Tobago — see Trinidad and Tobago
- Republic of Uzbekistan — see Uzbekistan
- Republic of Yemen — see Yemen
- Research Protection Program — see Institutional Review Boards
- Respirators
- Respiratory Health, Air Pollution and — see Asthma and Community Health
- Respiratory Health at Work
- Respiratory Syncytial Virus Infection (RSV)
- Response and Recovery Activities for Environmental Health (RRA)
- RF (Radio Frequency Fields)
- RFP Solicitations
- Rheumatoid Arthritis (RA)
- Ricin
- Rickettsia, Spotted Fever Group — see Spotted Fever Group Rickettsia
- Rickettsial Diseases
- Rickettsia rickettsii Infection — see Rocky Mountain Spotted Fever
- Rift Valley Fever (RVF)
- Ringworm from Animals
- Ringworm [Dermatophyte Infection]
- Riot Control Agents
- River Blindness [Onchocerciasis]
- RMSF (Rocky Mountain Spotted Fever)
- Rocky Mountain Spotted Fever (RMSF) [Rickettsia rickettsii Infection]
- Rodent Control — see Rodents, Diseases from
- Rodents — see Rat-Bite Fever
- Rodents, Diseases from
- Rotavirus Infection
- Rotavirus Vaccination
- Rotavirus Vaccine & Intussusception
- RSS — see Podcasts
- RSV (Respiratory Syncytial Virus Infection)
- Rubella (German Measles)
- Rubella (German Measles) Vaccination
- Rubeola — see Measles
- Runny Nose — see Cold, Common
- Rural Health
- Russia
- RVF (Rift Valley Fever)
- Rwanda
- RWI (Recreational Water Illnesses)
- Ryan White Act