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Detailed explanation-1: -Health authorities in Burundi on Friday said that they had detected eight samples of polio, officially declaring the landlocked African nation’s first outbreak in more than 30 years.

Detailed explanation-2: -Based on these eight samples found with the virus, Burundi’s health authorities declared an outbreak in the landlocked east-African country-its first in 30 years.

Detailed explanation-3: -Polio epidemics did not begin to occur until the latter part of the 19th century, but evidence indicates that polio is an ancient disease. A well-known stele from the 18th dynasty of ancient Egypt (1570–1342 bce) clearly depicts a priest with a telltale paralysis and withering of his lower right leg and foot.