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Abstract INTRODUCTION Poliomyelitis is considered a major health problem in Egypt despite the obligatory use of oral vaccine for more than 25 years. In Egypt awareness of poliomyelitis as a publ health problem developed during the 1940s and 1950s when increasing number of paralytic cases in infants and children were recognized. The introduction of compulsory polio vaccination of infants all-over the country in 1965 was accompanied by transient decrease in incidence of cases. But unfortunately, acute cases continued to appear later. This invited the Ministry of health to initiate mass vaccination (M.V.C) in 1976. It was designed to provide three doses of trivalent oral live polio all children from four months through four years of regardless of their vaccination history. Since to age 1976 several additional mass vaccination were conducted (Schonberger, 1981). Recently, epidemiological polio has shown a change in it’s pattern, with higher attack rate in older children, due to improvement of hygienic standards in developed and some developing countries (Fenichel, et al., 1982) . So, this work aiming to clarify the epidemiology of poliomyelitis this problem psychosocial amoungest Egyptian children and the size of in Egypt and to clarify the different aspects of poliomyelitic children and the |