Good morning everyone, thank you all for your fascinating responses and comments etc re this original question. As a newish subscriber and also OH degree student, I seem to have set everyone off with discussion and debate. The original question was posed as a result of a colleague in another part of the country expressing some concern re vaccination and Heaf testing partly due to confidence in the correct technique even with training and also Heaf testing, subsequent BCG's etc taking into account past history, proof of vaccination, guidelines etc and a toe was placed in the water to gain some insight into fellow OH professionals feelings and practice also on this issue. This forum in terms of information gathering and learning resources is priceless and thank you all for your sharing of knowledge and experience and details of same have been passed on to my fellow class mates. May I come out from under the table now please? Best wishes to you all for Christmas Chris Baldwin ~~~~~~~~~~~~~~~ Please remove this footer before replying. Visit http://www.jiscmail.ac.uk/lists/occ-health.html for list archives