The last confirmed case of paralytic poliomyelitis due to indigenous wild poliovirus in the
Americas occurred in Peru in 1991. In 1994 the International Commission on Polio …

Most polio virus infections are silent. Vaccination reduces the incidence of infection, and the
period between clinical cases of poliomyelitis becomes longer. As the point of eradication is …

Abstract In May 1985, the Pan American Health Organization launched an initiative to
interrupt indigenous transmission of the wild poliovirus from the Western Hemisphere by the …

In May 1996, in the Region of the Americas, over 4 years had elapsed since the last
confirmed case of paralytic poliomyelitis due to wild polio virus had been detected, on …

Poliomyelitis caused by polioviruses has already been eradicated from industrialized
countries of North America, Europe, Asia and Oceania, but the procedures by which this …

Substantial progress towards the global eradication of poliomyelitis by the year 2000 has
been achieved since May 1988 when WHO Member States adopted this goal at the Forty …

In May 1985, the Pan American Health Organization (PAHO) proposed the goal of
interruption of wild poliovirus transmission in the Western Hemisphere by 1990 (1). This …

In May 1985, the Director of the Pan American Health Organization, Dr Carlyle Guerra de
Macedo proposed that poliomyelitis be eradicated from the Americas by 1990." This …

On August 23, 1991, a 2-year-old boy in the district of Junin, Peru, had onset of symptoms of
culture-confirmed paralytic poliomyelitis. This is the last case of paralytic poliomyelitis with a …

A basic framework for describing sensitivity of surveillance to detect poliovirus is extended
from individuals to general populations (population sensitivity). Using the mathematical …