Epidemiologic Studies of Acute Anterior Poliomyelitis

acute poliomyelitis acute stage adults Age groups animals apparently attack of poliomyelitis Attack rates attending August Batavia Board of Health Buffalo bulbar cent Cerro Gordo County CHART child Cincinnati clinical constipated contact with previous contagiousness County Covington definite abortive definite paralysis diagnosis of poliomyelitis diarrhea diphtheria Direct contact disease distribution epidemics of poliomyelitis epidemiological evidence families fatal females Grundy Center Grundy County Hancock County headache illness immunity incidence of poliomyelitis included indirect investigated Iowa Kernig's sign large number legs male Mason City meningitis milk monkey months myelitis neck normal number of deaths observed obtained October onset outbreak pain paralysis patellar reflexes patients persons physicians polio poliomyelitis occurred population premises previous paralyzed prior probable proportion reported rural scarlet fever SEPT September serum showed slight source of infection spread statistics stomoxys summary suspected abortive symptoms TABLE taken sick temperature tion Total town vicinity visited vomiting weeks