瘧疾在一些發(fā)展中國(guó)家仍然是威脅人們生命的一大問題，科學(xué)家試圖通過培育抗瘧疾蚊蟲來解決這一問題
Scientists say they have made more progress in developing malaria-resistant mosquitoes. The idea is to release genetically engineered insects like these into mosquito populations as a way to control the disease. Each year more than 3 million people become infected with malaria. At …