Mary Butler (Waterford, Fianna Fail) | Oireachtas source

According to Dr. Henry's opening statement, Ireland is one of the few countries to offer automatic testing for contacts of a confirmed case. How important is this to control the spread of the virus? I know that one of the other speakers said tests are carried out on day zero and day seven. Does Dr. Henry think we need to continue doing this on an ongoing basis, and how important is it?