Roland Perry wrote:
In message , at 09:16:54 on Tue, 5 May 2020,
Recliner remarked:

So where are the UK labs? I guessed that Porton Down would be
prominent, and it does indeed have two such labs, one military, one
civilian. More surprisingly, there are three conveniently located
BSL-4 labs along the Northern Line, and three more in Surrey. There's
also one just north of London, in Potters Bar.

I suspect the Northern Line ones mainly belong to Public Health England,
and are the ones which are now attracting some attention because the
NHS's plan for testing of notifiable diseases was over-centralised into
them.

Disclaimer: my one time next door neighbour was an epidemiologist
working in one of those facilities.

I don't think so. They're research labs, not test tabs.

Are any of your list at Colindale?

Yes, and that one is Public Health England's Centre for Infections,
Department of Health laboratory. Diagnostics for various viral diseases.
Part of the European Network of Biosafety-Level-4 Laboratories

And it's only research, not testing?

Yes, the BSL-4 lab won't be doing routine testing, but it's on a larger
site that might well do so. Most BSL-4 labs seem to be a small, very
specialised facility in a larger scientific campus. Sometimes, there's more
than one such lab in the same campus, specialising in different work (eg,
civilian and military).