While the U.S. as a whole reported 37% fewer cases in the current polio season than last year (2,295 since April 1, as against 3,613), a swift outbreak hit Chicago and suburbs. Almost every hour of every day last week, workers stuck a pin into a wall map in the office of Chicago's Health Boss Herman N. Bundesen. The red pins stood for new cases of paralytic polio, yellow for nonparalytic, black for fatal cases. By week's end there were 268 pins—166 red, 97 yellow, five black (as against 39 cases, two deaths, at the corresponding date last year).
Two-thirds of all...
To continue reading:
or
Log-In
