There has been a nasty min epidemic at a hospital in Belfast: Bacteria in baby unit traced to sink taps – The Irish Times – Wed, Jan 25, 2012. It appears to have been traced to a water tap. Just a mini reminder that we need to learn more about the biogeography of microbes in the built environment. Plus, this helps point out something I have been meaning to write about more here – just because I am a critic of studies that find microbes in buildings and immediately think we should kill them all – does not mean that I think all microbes in buildings are good. There are plenty of nasties out there.