Dengue is one of the major causes of death and severe illness among children in most of the Asian and Latin American countries. A latest study has revealed that infecting these mosquitoes with a type of naturally-occurring bacteria called Wolbachia could help to prevent the virus from replicating in the insect. After releasing these modified mosquitoes in extremely infected areas, they found a 70% reduction in the dengue cases. Researchers are now evaluating the cost-effectiveness of this method as most of the dengue patients are from lower-income nations.