NIGERIA will unveil the world’s largest mosquito net on Tuesday, a week before a summit aimed at boosting the fight against malaria in Africa. During the launch, 225 school students will squeeze in under the giant net – that’s how many African children die of malaria every two and a half hours. An official from the Guinness Book of Records will be on hand to authenticate the event. The net, 225 times larger than the standard mosquito net, is three metres high and covers 20 square metres. The event is aimed at highlighting Africa’s malaria problem, which kills more than one million Africans a year and is on the increase.