• Salmonella typhi infection  [Typhoid Fever]
  • Salmonella Infection [Salmonellosis]
  • SARS [Severe Acute Respiratory Syndrome]
  • Scabies
  • Scarlet Fever
  • Schistosomiasis [Schistosoma Infection]
  • Seasonal Flu
  • Sepsis [Septicemia]
  • Shigella Infection [Shigellosis]
  • Shingles [Varicella Zoster Virus (VZV)]
  • Sickle Cell Disease
  • SIDS (Sudden Infant Death Syndrome)
  • Sinus Infection [Sinusitus]
  • SLE (Lupus)
  • Sleep and Sleep Disorders
  • Smallpox
  • Smoking and Tobacco Use
  • Soil Transmitted Helminths
  • Sore Mouth Infection [Orf Virus Infection]
  • Sore Throat
  • Southern Tick-Associated Rash Illness (STARI)
  • Spina Bifida [Myelomeningocele]
  • Staphylococcus aureus Infection
  • Strep Throat
  • Streptococcus pneumoniae Infection
  • Stress, Occupational
  • Stroke
  • Strongyloidiasis
  • Swimmer’s Itch [Cercarial Dermatitis]
  • Swimming-related Illness
  • Swine Influenza
  • Symptom Relief for Upper Respiratory Infections
  • Syphilis
  • Systemic lupus erythematosus