Salmonella

Salmonella Septicemia

Salvage Therapy

San Joaquin Valley Fever

Seborrheic Dermatitis

Secondary Prophylaxis

Secondary Resistance

Secondary Transmission

Self-Administered Therapy (SAT)

Semen

Semen-Derived Enhancer of Virus Infection (SEVI)

Seminal Fluid

Sensitivity

Sepsis

Seroconversion

Serologic Test

Seroprevalence

Serostatus

Serum

Serum Glutamate Pyruvate Transaminase

Serum Glutamic-Oxaloacetic Transaminase

Set Point

Sexual Transmission

Sexually Transmitted Disease

Sexually Transmitted Infection (STI)

SGPT

Sham

Shigellosis

Shingles

Simian Immunodeficiency Virus (SIV)

Single-Blind Study

Single-Masked Study

South American Trypanosomiasis

Specificity

Sperm Washing

Spermicide

Spinal Tap

Spleen

Splenomegaly

Sputum Analysis

Standard Medical Care

Standard of Care

Standard Therapy

Statin

Stem Cells

Stevens-Johnson Syndrome (SJS)

Stomatitis

Strain

Streptococcus Pneumonia Infection

Stroke

Structured Treatment Interruption (STI)

Subclinical Infection

Subcutaneous (SC)

Subcutaneous Adipose Tissue (SAT)

Suboptimal Immunologic Response

Substance Abuse and Mental Health Services Administration (SAMHSA)

Subtype

Sugar

Sugar Pill

Superinfection

Superiority Trial

Supportive Care

Supressor T Cell

Supressor T Lymphocyte

Surrogate Endpoint

Surrogate Marker

Sustained Viral Suppression

Sustained Virologic Response

Symptom Management

Syncytium

Syndrome

Syndrome X

Synergism

Synergy

Syphilis

Systemic