The main symptoms of MERS are:
cough, shortness of breath and difficulty breathing
diarrhea
high fever (over 38°C or 100.4°F)
Some people also develop kidney failure.
People with existing medical conditions (e.g., heart problems, diabetes) are more likely to be affected more seriously with the infection. Many of the fatal MERS infections have been in patients who had a history of other medical conditions.