Vuvuzelas – the horns used by football fans celebrating last year’s World Cup – not only cause noise pollution but may also spread diseases, say experts.
A short burst on the instrument creates a spittle shower similar to a sneeze, travelling at a four million droplets a second, a PLoS One journal study shows.
In crowded venues one person blowing a vuvuzela could infect many others with airborne illness like the flu or TB.
Organisers are considering whether to allow them at the 2012 London Olympics. . .