Polio Rises in Pakistan Ahead of a New Vaccination Campaign — VOA Learning English
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In Pakistan, polio cases are rising ahead of a new vaccination campaign. Violence targeting health workers has also hurt years of efforts toward making the country polio-free.
The World Health Organization says polio is a highly infectious disease caused by a virus. The disease largely affects children under age five. The virus is transmitted from person to person and spread mainly through contact. It invades the nervous system and causes a person to be unable to move arms, legs or muscles, a condition called paralysis. Among those paralyzed, up to 10 percent die when their breathing muscles become immobilized.
Since January, health officials have confirmed 39 new polio cases in Pakistan,…
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