The World Health Organization (WHO) will soon begin using a technique that sterilizes male mosquitoes as part of global efforts to control pest-born diseases, the UN organization said Thursday. 

“Half the world’s population is now at risk of dengue,” said Dr. Soumya Swaminathan, WHO’s chief scientist.

“We desperately need new approaches, and this initiative is both promising and exciting,” she said.

Cases of dengue, a tropical disease spread by mosquitos, have reached 110 countries in recent years, with WHO estimates predicting hundreds of thousands of new cases may bring the global total beyond 3.5-4 million, said WHO at a

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