Work in the world of science
GKRMS BY AIR by R. E. 0. Williams, M.D. Professor of Bacteriology, Wright-Fleming Institute,
St. Mary's Hospital Medical School
How close must you be to someone \yith a cold to risk catching it; and what about measles or tuberculosis? How rigid must the barriers be to prevent the spread of infection? A great deal of research has gone into the attempt to answer these questions.