Some 40 percent of the cups and 20 percent of the sponges found at office sinks harbored coliform bacteria, occasionally potentially dangerous E. coli.
Ligikaudu 40 protsendilt kohvitassidelt ja 20 protsendilt pesukäsnadelt, mis olid kontorite kraanikausis, leiti koliformseid baktereid, mõningatelt ka potentsiaalselt ohtlikku E. coli bakterit.