Which factor has contributed to malaria's recent comeback

Question

Quizplus · Accepted Answer

Both B and C have contributed to malaria's recent comeback. The emergence of DDT-resistant mosquitoes has made it more difficult to control the mosquito population, while environmental changes in developing countries have created more breeding grounds for mosquitoes and increased the likelihood of human-mosquito contact. Failure to vaccinate people living in susceptible areas may be a contributing factor, but it is not the primary reason for malaria's comeback.

Which Factor Has Contributed to Malaria's Recent Comeback