Detective's Desk
Somewhere, an outbreak is spreading — and no one knows why yet. That's where you come in. Study how real disease detectives crack a case, then prove you can do it too.
🔑 Sign In
Optional, but it saves your progress across every guide and drill.
Start here → Step 2🔍 Study the FilesStudy
Read a guide below, chapter by chapter.
Step 3🎯 Practice
Test yourself in Mastery Practice. Every answer counts.
Learn it here first — read each guide before you practice.
The Shoe-Leather Files
A focused guide to Background & Surveillance: epidemiology's history, roles, core vocabulary, and how public health keeps watch.
Chasing the Curve
A focused guide to Outbreak Investigation: study designs, the 10-step checklist, case definitions, epi curves, chain of transmission, and the math behind attack rate, RR & OR.
Stopping the Spread
A focused guide to Patterns, Control & Prevention: picking the right chart, ratio/proportion/rate math, incidence & prevalence, disease control strategies, and the levels of prevention.
📊 Everything below counts toward your Mastery Map — pick any one and get started.
Quickfire
10 random questions, all 3 units. Rookie and Chief Detective timers.
Case Simulations
Five complete outbreaks, start to finish. Pick one and get to work.
The Case Generator
A brand-new outbreak every run: epi curves, 2×2 tables, and RR/OR calculations. Endlessly replayable.
Guess the Pathogen
Name the organism from its symptoms, timing and source, against look-alike answer choices.
Frequency Drill
Calculate rates, name the measure, and spot the mistake.
The Field Exam
A tournament-style practice test: terms, scenarios, short answers and a full case study.
Extra tools when you need them — reference sheet and vocab drills.