Dr. Colm Henry:

There are two things. First, in April we had a blanket exercise across care homes, residential settings, disability settings and mental health settings, which gave us limited information given there were relatively low levels of positivity, although there was geographical variation. This week we are starting a series of testing of all healthcare workers in nursing homes for four consecutive weeks to help to inform us more of the behaviour of this virus among healthcare workers. In view of the fact that we cannot always be certain where it was contracted, it will give us more information on how the virus was contracted and the behaviour of it among healthcare workers. My colleague, Ms O'Beirne, may also wish to comment on that.