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- Safety Factor
- Safety Standards
- Sample
- Sample Design
- Sample, EPSEM
- Sample Size Determination
- Sample Space
- Sampling
- Sampling Bias
- Sampling Error
- Sampling Fraction
- Sampling Unit
- Sampling Variation
- Sanitary Cordon
- Santayana Syndrome
- Sartwell’S Incubation Model
- “Satellite Epidemiology”
- Scale
- Scan Statistic
- Scatter Diagram, Plot
- Scenario-Based Health Risk Assessment
- Scenario Building
- Science
- Scientific Misconduct
- Scientometrics
- Screening
- Screening Level
- Seasonal Variation
- Secondary Attack Rate
- Secondhand Tobacco Smoke
- Second-Line Drugs (SLDS)
- Sector
- Secular Trend
- Sedentary Lifestyle
- Selection
- Selection Bias
- Semi-Individual Design
- Semiology
- Sensitive Period
- Sensitivity Analysis
- Sensitivity and Specificity
- Sensitivity Testing
- Sentinel Health Event
- Sentinel Initiative
- Sentinel Physician, Sentinel Practice
- Sentinel Surveillance
- Sequential Analysis
- Serendipity
- Serial Interval
- Seroepidemiology
- Serology
- Set
- Set Theory
- Sex Ratio
- SF36
- Sharps
- “Shoe-Leather” Epidemiology
- Shrinkage Estimation
- Siblings
- Sibship
- Sickness
- Sickness Absence
- Sickness “Career”
- Side Effect
- Sidestream Smoke
- Signal-To-Noise Ratio
- Significance, Clinical
- Significance, Public Health
- Significance, Statistical
- Sign Test
- Silencing, Gene
- Simpson’S Paradox
- Simulation
- Single Nucleotide Polymorphism (SNP)
- Single-Patient Trial
- Situation Analysis
- Skew Distribution
- Slope Index of Inequality
- Slow Virus
- Small Area Variations
- Small For Gestational Age (SGA)
- Smoothing
- Snowball Sampling
- Social Capital
- Social Class
- Social Drift
- Social Epidemiology
- Social Marketing
- Social Medicine
- Social Network
- Societal Risk
- Socioeconomic Classification
- Socioeconomic Status
- Sociology of Epidemiology
- Sociology of Scientific Knowledge
- Sojourn Time
- Soundex Code
- Source of Infection
- Spatial Autocorrelation
- Spatial Epidemiology
- Spatial Weight Matrix
- Spearman’s Rank Correlation
- Specification
- Specificity (Of A Test)
- Spectrum Bias
- Spectrum of Disease
- Spell of Sickness
- Spillover Effects
- Spleen Rate
- Spline
- Spline Models
- Sporadic
- Spot Map
- Stable Population
- Standard
- Standard Deviation
- Standard Error
- Standard Gamble
- Standardization
- Standardized Incidence Ratio
- Standardized Mortality Ratio (SMR)
- Standardized Rate Ratio (SRR)
- Standard Metropolitan Statistical Area
- Standard Population
- Standard Instrumental Variable Estimator
- Stard
- Stationary Population
- Statistic
- Statistical Error
- Statistical Inference
- Statistical Model
- Statistical Significance
- Statistical Test
- Statistics
- Stein Estimation
- Stem-And-Leaf Display
- Stepped Wedge Design
- Stewardship
- Stillbirth
- Stochastic Process
- Stopping Rules
- Strategy
- Strategy, “High-Risk”
- Strategy, “Population”
- Stratification
- Stratified Randomization
- Strega
- Strength of an Association
- Stress
- Strobe
- Structural Nested Models
- Structured Abstract
- Study Base
- Study Design
- Study Monitor
- Subclinical Disease
- Sufficient Cause
- Summative Rating
- Superinfection
- Superiority Trial
- Suppression Bias
- Suppressor Variable
- Surrogate Marker
- Surveillance
- Survey
- Survey Instrument
- Survival Analysis
- Survival Curve
- Survival Function
- Survival Proportion
- Survival Ratio
- Survival, Relative
- Survivorship Study
- Susceptibility
- Susceptible Variable
- Sustainability
- Symbiosis
- Symptomatology
- Syndrome
- Synergism, Synergy
- System
- Systematic Error
- Systematic Review
- Systemic
- Systems Analysis
Secondary Attack Rate
- Source:
- A Dictionary of Epidemiology
- Author(s):
Miquel Porta
The number of cases of an infection that occur among contacts within the incubation period following exposure to a primary case in relation to the total number of exposed contacts; the denominator is restricted to susceptible contacts when these can be determined. It is a measure of contagiousness and is useful in evaluating control measures. While the traditional terminology includes “rate,” it is often a proportion. See also ... ...
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- Safety Factor
- Safety Standards
- Sample
- Sample Design
- Sample, EPSEM
- Sample Size Determination
- Sample Space
- Sampling
- Sampling Bias
- Sampling Error
- Sampling Fraction
- Sampling Unit
- Sampling Variation
- Sanitary Cordon
- Santayana Syndrome
- Sartwell’S Incubation Model
- “Satellite Epidemiology”
- Scale
- Scan Statistic
- Scatter Diagram, Plot
- Scenario-Based Health Risk Assessment
- Scenario Building
- Science
- Scientific Misconduct
- Scientometrics
- Screening
- Screening Level
- Seasonal Variation
- Secondary Attack Rate
- Secondhand Tobacco Smoke
- Second-Line Drugs (SLDS)
- Sector
- Secular Trend
- Sedentary Lifestyle
- Selection
- Selection Bias
- Semi-Individual Design
- Semiology
- Sensitive Period
- Sensitivity Analysis
- Sensitivity and Specificity
- Sensitivity Testing
- Sentinel Health Event
- Sentinel Initiative
- Sentinel Physician, Sentinel Practice
- Sentinel Surveillance
- Sequential Analysis
- Serendipity
- Serial Interval
- Seroepidemiology
- Serology
- Set
- Set Theory
- Sex Ratio
- SF36
- Sharps
- “Shoe-Leather” Epidemiology
- Shrinkage Estimation
- Siblings
- Sibship
- Sickness
- Sickness Absence
- Sickness “Career”
- Side Effect
- Sidestream Smoke
- Signal-To-Noise Ratio
- Significance, Clinical
- Significance, Public Health
- Significance, Statistical
- Sign Test
- Silencing, Gene
- Simpson’S Paradox
- Simulation
- Single Nucleotide Polymorphism (SNP)
- Single-Patient Trial
- Situation Analysis
- Skew Distribution
- Slope Index of Inequality
- Slow Virus
- Small Area Variations
- Small For Gestational Age (SGA)
- Smoothing
- Snowball Sampling
- Social Capital
- Social Class
- Social Drift
- Social Epidemiology
- Social Marketing
- Social Medicine
- Social Network
- Societal Risk
- Socioeconomic Classification
- Socioeconomic Status
- Sociology of Epidemiology
- Sociology of Scientific Knowledge
- Sojourn Time
- Soundex Code
- Source of Infection
- Spatial Autocorrelation
- Spatial Epidemiology
- Spatial Weight Matrix
- Spearman’s Rank Correlation
- Specification
- Specificity (Of A Test)
- Spectrum Bias
- Spectrum of Disease
- Spell of Sickness
- Spillover Effects
- Spleen Rate
- Spline
- Spline Models
- Sporadic
- Spot Map
- Stable Population
- Standard
- Standard Deviation
- Standard Error
- Standard Gamble
- Standardization
- Standardized Incidence Ratio
- Standardized Mortality Ratio (SMR)
- Standardized Rate Ratio (SRR)
- Standard Metropolitan Statistical Area
- Standard Population
- Standard Instrumental Variable Estimator
- Stard
- Stationary Population
- Statistic
- Statistical Error
- Statistical Inference
- Statistical Model
- Statistical Significance
- Statistical Test
- Statistics
- Stein Estimation
- Stem-And-Leaf Display
- Stepped Wedge Design
- Stewardship
- Stillbirth
- Stochastic Process
- Stopping Rules
- Strategy
- Strategy, “High-Risk”
- Strategy, “Population”
- Stratification
- Stratified Randomization
- Strega
- Strength of an Association
- Stress
- Strobe
- Structural Nested Models
- Structured Abstract
- Study Base
- Study Design
- Study Monitor
- Subclinical Disease
- Sufficient Cause
- Summative Rating
- Superinfection
- Superiority Trial
- Suppression Bias
- Suppressor Variable
- Surrogate Marker
- Surveillance
- Survey
- Survey Instrument
- Survival Analysis
- Survival Curve
- Survival Function
- Survival Proportion
- Survival Ratio
- Survival, Relative
- Survivorship Study
- Susceptibility
- Susceptible Variable
- Sustainability
- Symbiosis
- Symptomatology
- Syndrome
- Synergism, Synergy
- System
- Systematic Error
- Systematic Review
- Systemic
- Systems Analysis
