How are Morbidity Rates Calculated?

The calculation of morbidity rates involves:

Prevalence Rate: \( \text{Prevalence Rate} = \frac{\text{Number of existing cases}}{\text{Total population}} \times 1000 \)
Incidence Rate: \( \text{Incidence Rate} = \frac{\text{Number of new cases}}{\text{Population at risk}} \times 1000 \)
Attack Rate: \( \text{Attack Rate} = \frac{\text{Number of new cases}}{\text{Population at risk}} \times 100 \)
Case Fatality Rate: \( \text{CFR} = \frac{\text{Number of deaths}}{\text{Number of diagnosed cases}} \times 100 \)