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Disease Detectives Rules

Division B + C

Rules Content Coming Soon

Official 2026 rules summary will be added here.

View Division B Rules | View Division C Rules

Epidemiology Calculator

Random Scenario Generator

2x2 Table Input

a = Exposed & Diseased, b = Exposed & Not Diseased, c = Not Exposed & Diseased, d = Not Exposed & Not Diseased
Diseased Not Diseased Total
Exposed
a
b		 0
Not Exposed
c
d		 0
Total 0 0 0

Computed Values

Risk (Exposed): —
a/(a+b)
Risk (Unexposed): —
c/(c+d)
Relative Risk (RR): —
[a/(a+b)]/[c/(c+d)]
Odds Ratio (OR): —
(a*d)/(b*c)
Risk Difference: —
Risk(Exp) - Risk(Unexp)
Attack Rate (Exp): —
Attack Rate (Unexp): —

Diagnostic Test Calculator

Sensitivity: —
TP/(TP+FN)
Specificity: —
TN/(TN+FP)
PPV: —
TP/(TP+FP)
NPV: —
TN/(TN+FN)

Worksheet Generator

Worksheet Generator Coming Soon

Generate practice worksheets with epidemiology problems.