Ahead of the 2014 World Cup, Brazil has implemented a health measure requiring all foreign fans to present an up-to-date vaccination certificate upon arrival. This initiative aims to prevent the spread of infectious diseases during the month-long tournament, which will be held in 12 Brazilian cities. The decision comes after a study by the World Health Organization (WHO), which highlighted the risk of disease transmission during large international events like the World Cup.
The measure ensures that travelers are vaccinated against diseases that could potentially spread in such a large-scale event, offering protection to both the fans and the local population. Fans planning to attend the World Cup will need to ensure they meet this requirement before entering the country.