The number of people diagnosed with dengue fever ( which is contacted from the bite of an infected mosquito ) in Bangladesh this year is twice the number diagnosed last year . The authorities have concluded that measures to control the mosquito population have failed in the region. All of the following , if true , would cast doubt on the authorities' conclusion EXCEPT-
A. More case are now reported because of increased administrative efficiency
B. A more effective diagnostic test was introduced about nine month ago
C. The disease is prevalent only in some industrialised areas which have shown a dramatic increase in population due to migration
D. The incidents (number of cases per thousand) of malaria, also contacted from mosquito bites has increased
সঠিক উত্তরঃ
D.
The incidents (number of cases per thousand) of malaria, also contacted from mosquito bites has increased
