Question 55 · LEK · Case fatality rate
In August 2017 Madagascar recorded the largest outbreak of plague in the decade. As of 12 October 2017 there were 560 cases of plague comprising 394 cases of pneumonic plague, 143 cases of bubonic plague, 1 case of septicemic plague and 22 cases of clinically undefined plague. 57 deaths were recorded. Madagascar has a population of 24.9 million people. The mortality rate expressed as a percentage is:
- A. 57/560 x 100% = 10.2%.
- B. 143/560 x 100% = 25.5%.
- C. 394/560 x 100% = 70.4%.
- D. 57/24 900 000 x 100% = 0.0002%.
- E. 560/24 900 000 x 100% = 0.002%.
Hint
Decide whether a rate expressed in percent here describes deaths in the whole country or deaths among those who fell ill with plague.
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