
As the 2026 World Cup begins, health officials warned that highly contagious diseases could spread quickly in dense, fast-moving crowds and urged stepped-up vaccination and surveillance. At the same time, on-field storylines — such as Lionel Messi leading the Golden Boot with five goals midway through group play — highlight the event's scale and the dual challenge of managing both public health and major sporting drama. Officials continue to balance crowd management and disease prevention as millions attend matches.
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