Since 1994, it has happened for the first time that the polio virus has been found in Brazil. Revealing the information on Monday, the World Health Organization, stated that the virus was detected in a sewage sample taken from Viracopos International Airport near Campinas, in southeastern Brazil.
The sample collected in March has matched with a strain lately found in Equatorial Guinea on the central African coast. For now, no case of paralysis has been reported. Around 95% of Brazilian children are immunized against polio.