RESUMEN
AIM: Control of poliovirus circulation by study of material from patients with acute flaccid paralysis and contact individuals, from children of risk groups; molecular characteristics of isolated polioviruses; monitoring of circulation of polioviruses and nonpoliomyelitis enteroviruses in population and the environment. MATERIALS AND METHODS: Isolation and study of polioviruses and nonpoliomyelitis enteroviruses from various sources was performed in accordance with WHO recommendations. RESULTS: Prolonged persistence and circulation of vaccine related strains of polioviruses in children is demonstrated. Enterovirus serotypes that circulate in the population and the environment more frequently are determined. CONCLUSION. Long term control of poliomyelitis and acute flaccid paralysis in combination with additional control variants in children from risk groups and objects of the environment allowed to obtain valuable data on poliovirus and nonpoliomyelitis enteroviruses circulation for the Program of eradication of poliomyelitis.