Roanoke Times Copyright (c) 1995, Landmark Communications, Inc. DATE: FRIDAY, September 30, 1994 TAG: 9409300055 SECTION: NATIONAL/INTERNATIONAL PAGE: A-2 EDITION: METRO SOURCE: Los Angeles Times DATELINE: WASHINGTON LENGTH: Medium
This achievement ``should be a source of pride to all of us, and it shows what can be done when everybody works together for a common cause for the benefit of mankind,'' said Dr. Carlyle Guerra de Macedo, director of the Pan American Health Organization, or PAHO, which is the Western Hemisphere office of WHO.
``Let us now hope that the example set in the Americas is followed by the rest of the world, so that after the year 2000 no child will ever again fall victim to this dreadful disease,'' he added, speaking at a news conference.
PAHO officials attributed the success to an aggressive and widespread $540 million immunization campaign launched in the region in 1985.
The last documented case of polio in the Americas was recorded in 1991 in a village in Peru, in a 3-year-old boy. The last case in the United States occurred in 1979, according to PAHO.
But 120,000 cases still occur annually in other parts of the world, most of them ``in the poorest and most politically unstable areas,'' PAHO officials said in a statement.
The disease has largely declined worldwide, with the sole exception being the Eastern Mediterranean region, where a 24 percent increase was reported in 1993, particularly in Pakistan and the Sudan, PAHO said. China, which reported epidemics of more than 5,000 in 1989 and 1990, has mounted a major immunization program. In 1993, Europe recorded 187 cases, of which 161 occurred in nine of the newly independent states of the former Soviet Union.
Poliomyelitis, or infantile paralysis, is an infectious disease caused by a virus that attacks the central nervous system and can produce paralysis and death by asphyxiation. There are no effective drugs to treat polio.
Patients whose respiratory cells have been destroyed usually require a respirator to control breathing and keep them alive. The image of a child in a so-called ``iron lung'' became a terrifying specter in this country during the height of the epidemic in the early 1950s - particularly 1952, when the United States experienced an explosion of thousands of cases.
The first effective vaccine against polio was developed by Dr. Jones Salk in 1954. Salk's vaccine, which was put into widespread use in 1955, was injectable and used killed polio virus to provoke immunity.
by CNB