Table 4.

The main symptoms of MERS and COVID-19.

	MERS	COVID-19
Systemic Disorders	Cough, Fever, Headache, Tiredness, Sputum production, Myalgia, Diarrhoea, Digestive system signs, Chills, Arthralgia, Odynophagia, Haemoptysis, Acute renal failure, Multi-organ failure.	Dry cough, Fever, Headache, Tiredness, Sputum production, Myalgia, Diarrhoea (2% of patients), Haemoptysis, Lymphopenia, Blood disorders.
Respiratory Disorders	Sore throat, Dyspnoea, Haemoptysis, Rapid development of pneumonia, ARDS	Sore throat, Rhinorrhoea and Sneezing, Pharyngalgia, Dyspnoea, Haemoptysis, Bilateral pneumonia, Ground-glass opacity, Pneumonia, ARDS.