A new highly effective treatmen was introduced for a certain disease in a certain locality Considering that othe factors remain constant which of the following is expected to happen? a. Incidence decreases while prevalence remains the same b . Prevalence decreases c. Incidence remains the same d. Both incidence and prevalence increase

The correct answer is d. Both incidence and prevalence increase.<br /><br />Explanation:<br /><br />When a new highly effective treatment is introduced for a certain disease, it is expected that both the incidence and prevalence of the disease will increase.<br /><br />Incidence refers to the number of new cases of a disease that occur in a specific population over a given period of time. When a new treatment is introduced, it is likely that more people will be diagnosed with the disease, leading to an increase in the incidence.<br /><br />Prevalence, on the other hand, refers to the total number of existing cases of a disease in a specific population at a given point in time. When a new treatment is introduced, it is likely that the number of existing cases will increase as more people are diagnosed and treated for the disease. This will lead to an increase in the prevalence of the disease.<br /><br />Therefore, the introduction of a new highly effective treatment for a certain disease is expected to result in both an increase in the incidence and prevalence of the disease.