66 
DR. KING: I have thought through it very intensively, but I use a dif- 
ferent model than most people. My model is the organic chemistry industry, 
and the problem of proliferation of the introduction and exposure of new 
organic chemicals. We now discover that we do need to test chemicals before- 
hand. We do need to have regular occupational monitoring in any place that 
produces a carcinogen. You have to keep track of the people there. 
I think the laboratory is a workplace, and a laboratory is a workplace 
that generates an extraordinary variety of agents, and at high concentra- 
tions. Just like the place that manufactures DES, the workers there are 
exposed to much, much higher doses than people in the general environment. 
Again, in a laboratory you have exposure to agents at much, much higher 
concentrations than you have in the general environment. Therefore, I think 
that we in this country have to begin keeping track of the health of people 
who work in laboratories generally exposed to biohazards, not just DNA, and 
at first we will struggle along and it will be very inefficient. 
DR. SHAW: Then would you use the general public as controls? I mean, 
how do you know that there is any increase in infection? 
DR. KING: I think you would have to look at geographical and local 
hotspots, the way it is done with cancer. And it would be difficult to de- 
velop — I mean, my feeling of what is the control population: infections 
among people who work in chemical laboratories. That is a fitting control 
population . 
DR. FREDRICKSON: Dr. Ginsberg. 
DR. GINSBERG: I just wanted to mention that meeting tomorrow and Sat- 
urday, the American Society for Microbiology has a committee to develop a 
training program. 
DR. FREDRICKSON: Sir John. 
SIR JOHN KENDREW: Well, I think the point about training programs is 
very important. But am I right in supposing that this really comes under 
roles and responsibilities tomorrow morning? 
DR. FREDRICKSON: It also comes there. 
SIR JOHN KENDREW: I believe that this Committee ought to develop this 
discussion, but I think that this isn't the moment to do it. 
DR. FREDRICKSON: I think it probably would be better if — I look like I 
am shoving everything under the rug for tomorrow, but I am not. 
DR. KING: Since I have a class during the roles and responsibilities 
section — 
[ 270 ] 
