Nigeria, May 26 -- Millions of football fans are expected to travel among 16 host cities for the event set for June and July; however, The News Chronicle reports that health experts are closely monitoring potential outbreaks of illness. Millions of tickets for the expanded event have already been confirmed for sale by FIFA.



Given rising worldwide infection rates, medical professionals cautioned that packed stadiums and large events could exacerbate the spread of diseases such as the flu and measles. As part of attempts to lower hazards during the competition, authorities in the United States have already stepped up health checks and monitoring.



Extreme heat is also a major concern, especially for cities projected to experience ve...