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Coronavirus: Disease Control

Question for Department of Health and Social Care

UIN 98959, tabled on 5 October 2020

To ask the Secretary of State for Health and Social Care, what steps his Department has taken to assess the frequency of different modes of transmission of covid-19 using (a) NHS Test and Trace cases and (b) other available data on common methods of covid-19 transmission.

This answer is the replacement for a previous holding answer.

Answered on

9 March 2021

Public Health England works closely with the Scientific Advisory Group for Emergencies (SAGE) to look at different modes of transmission of COVID-19.

There are a range of approaches to understanding and assessing transmission including outbreak investigations, case control studies, surveillance studies, intervention studies, laboratory studies and modelling, which all have strengths and biases. Different approaches need to be applied and analysed together to identify factors that influence transmission. The majority of data shows correlations and associations, but rarely proves causation and no single data source provides complete evidence for how and where transmission takes place.

Answered by

Department of Health and Social Care
Named day
Named day questions only occur in the House of Commons. The MP tabling the question specifies the date on which they should receive an answer. MPs may not table more than five named day questions on a single day.