Professor Anthony Staines:

There is a project on sewage epidemiology which is seeking funding at the moment. We believe it is technically feasible and we are waiting to hear if the reviewers think we are capable of doing it.

On pooled testing, there are technical issues about this which I only dimly understand. I gather that in many circumstances it is very useful. It does not always work and one would need to ask one of the testing experts further about that.