The first case was recorded in mid- April after a five- year-old child presented with inability to walk and pain in the lower back.
The health organization adds that in a small number of cases, polio can cause paralysis that is often permanent.
Polio, or infantile paralysis, is an infectious disease caused by one of three strands of the Poliovirus that enters the body through the nose or mouth and later develops in the throat and intestines. Part of an indigenous community in Venezuela's northeastern state of Delta Amacuro, the child had not been vaccinated against polio, the statement noted.
Polio has been reported in Venezuela, a crisis-wracked country where the disease had been eradicated decades ago, the Pan-American Health Organization reports.
"This virus particularly affects people who are malnourished and have not been vaccinated", said Oletta. The former Venezuelan Minister of Health claims that President Nicolas Maduro's current health officials took over a month to notify PAHO of the polio case, despite an global rule requiring notice within 24 hours. Worldwide regulations provide for a 24-hour period to notify of the detection of such a case.
Devastated by a serious economic and political crisis, Venezuela also recorded a year ago 85% of measles cases in all countries of Latin America and the Caribbean, according to PAHO.
More specifically, "there were eleven countries that reported 1,685 confirmed measles cases across the region", of which 1,427 were in Venezuela, a PAHO report released Saturday found.
Venezuela says it does not have 85 percent of the basic medical supplies it needs even including vaccines.
In neighbouring countries, where Venezuelans have migrated due to grim economic conditions, numerous reported cases have been among Venezuelan immigrants, the report said.