Asymptomatic COVID-19 screening programme

Weekly asymptomatic screening programme for COVID-19 at the University of Cambridge

See here for COVID-19 testing arrangements for the end of Easter Term and summer vacation 2021

The University is offering all students living in College accommodation and the majority of students living in private accommodation a weekly PCR test for infection with SARS-CoV-2, the coronavirus that causes COVID-19, even if they show no symptoms. In combination with contact tracing and the University’s established testing facilities for symptomatic students and staff, the programme is part of our proactive approach to reducing the risk to students, staff and the local community.

Around half of people infected with SARS-CoV-2 develop symptoms, such as a high temperature, cough, or a loss or change in their sense of smell or taste. Others show no symptoms and are unaware that they are infected at all (they are asymptomatic). We know that people with SARS-CoV-2 infection but no symptoms can still spread the virus to others. The aim of the screening programme is therefore to identify students with asymptomatic infection, so they can avoid infecting other members of the Cambridge community.

Students use a swab to take a sample from their nose and throat. Swabs are then pooled by household, enabling the University to greatly reduce the number of PCR tests required. If a pooled screening test is positive, students in that household are informed the following morning and offered individual PCR tests to confirm the positive result. Students with confirmed SARS-CoV-2 infection, their household and other contacts are then supported in following national guidance on self-isolation.

Participation in the programme is voluntary, but we encourage everyone to take part. The vast majority (almost 90%) of eligible students have already agreed to participate – if you haven’t signed up yet, please do join them! High levels of participation are essential to help us keep you, your friends and colleagues, and the wider community safe.

How to take your swab

The following film shows you how to take your swab and what to do with your sample. 


Weekly reports on asymptomatic screening programme

Please note that these reports are compiled on a weekly basis, and case numbers may change rapidly (even day-to-day) at the start or end of an outbreak.

Summer vacation

Easter term

Easter Vacation

Lent Term 2021

Michaelmas Term 2020

Read more

To find out how the Asymptomatic COVID-19 Screening Programme was set up and run and to see its impact, visit:

Data from the programme have been summarised in two manuscripts:

Further information

Further detailed information on the programme can be found here. If you have any further questions, please contact us at

Note: These documents relate to the Asymptomatic COVID-19 Screening Programme as it was launched in Michaelmas Term 2020. Since then, there have been various refinements to the operation of the programme, described in these web pages, including updated protocols and answers to FAQs. These documents and webpages should therefore be read together. The legal framework in which the programme operates, including all the substantive privacy/data protection implications, remain as described here.