Searching for the cause and cure of a disease is very much like driving a nitroglycerine wagon: it seems safe at the time but trouble may come any moment. Trouble came last week to some researchers in the U. S. Public Health Service's laboratory at Washington. Searching for the cause and cure of psittacosis (parrot fever), eleven of them came down with the disease. The laboratory had to be closed, leaving psittacosis a momentary victor over the U. S. Government.*
Prior to last week health officials had thought that contact with infected parrots...
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