HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Group testing against Covid-19

Abstract : It is well-known that group testing is an efficient strategy to screen for the presence of a virus. It consists of pooling n individual samples with a single test using RT-PCR. If no individual in the group is infected, the group test is negative. Thus, a single test may reveal this crucial information. We show how group testing can be optimised in three applications to multiply the power of tests against Covid-19: Estimating virus prevalence to measure the evolution of the pandemic, bringing negative groups back to work to exit the current lockdown, and testing for individual infectious status to treat sick people. For an infection level around 2%, group testing could multiply the power of testing by a factor of 20. The implementation of this strategy in the short run requires limited investments and could bypass the current immense shortage of testing capacity.
Keywords : Covid-19 Testing
Document type :
Journal articles
Complete list of metadata

Cited literature [12 references]  Display  Hide  Download

Contributor : Service Publications Dsr-Scd-Ut1c Connect in order to contact the contributor
Submitted on : Thursday, April 30, 2020 - 10:15:59 AM
Last modification on : Wednesday, November 3, 2021 - 5:31:27 AM


Explicit agreement for this submission


  • HAL Id : hal-02550740, version 1



Christian Gollier, Olivier Gossner. Group testing against Covid-19. Covid Economics, Centre for Economic Policy Research CEPR, 2020, 1 (2), pp.32-42. ⟨hal-02550740⟩



Record views


Files downloads