https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2768923

Difference between sensitivity and specificity:
https://www.statisticshowto.com/sensitivity-vs-specificity-statistics/#:~:text=In%20other%20words%2C%20the%20specificity,do%20not%20have%20the%20disease.

Columbia University

- analytic modeling study included a hypothetical cohort of 4990 students without SARS-CoV-2 infection and 10 with undetected, asymptomatic SARS-CoV-2 infection at the start of the semester
- model assumed a symptomatic case fatality risk of 0.05% and a 30% probability that infection would eventually lead to observable COVID-19–defining symptoms in the cohort
- model projections were for an 80-day, abbreviated fall 2020 semester
- tested different frequencies (tests every 1, 2, 3, and 7 days), cost of tests (from $10 per test-$50 per test), sensitivity and specificity of tests (between 70%-99% and 98%-99.7% respectively)
- found that screening every 2 days with strict behavioral interventions most effective even when test is rapid, inexpensive, and poorly sensitive

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