Which factor(s)has/have contributed to malaria's recent comeback

Question

Quizplus · Accepted Answer

Failure to vaccinate people living in susceptible areas and environmental changes in developing countries have contributed to malaria's recent comeback. Additionally, the emergence of drug-resistant strains of the malaria parasite and insecticide-resistant mosquitoes have also played a role. However, since the question only allows for one answer choice, D, which includes two of these factors, is the best option.

Which Factor(s)has/have Contributed to Malaria's Recent Comeback