Table 2.

Results from the retrospective survey on participants’ clinical symptoms and chronic illness history

Clinical symptoms	No. of occurrence	% among participants
Fever	89	59.33
Fatigue / Tiredness	83	55.33
Dry cough	70	46.67
Muscle / Joint pain	49	32.67
Headache	42	28.00
Coughing up phlegm	40	26.67
Sore throat	39	25.26
Loss of taste	36	24.00
Loss of smell	36	24.00
Shortness of breath	35	23.33
Diarrhoea	33	22.00
Aversion to cold	31	20.67
Poor appetite	27	18.00
Runny nose	26	17.33
Stuffy nose	21	14.00
Night sweats	18	12.00
Soreness and weakness of waist and knees	15	10.00
Spontaneous sweating	14	9.33
Feverish palms and soles	12	8.00
Nausea/Vomit	6	4.00
Rash	6	4.00
Tinnitus	5	3.33
Coughed up blood	1	0.67
Conjunctival hyperemia	1	0.67

Chronic illness	No. of occurrence	% among participants
Hypertension	36	24.00
High Cholesterol	22	14.67
Diabetes mellitus	19	12.67
Rhinitis	15	10.00
Heart Disease	9	6.00
HBV	9	6.00
Gallbladder Disease	8	5.33
History of Cancer	7	4.67
Eczema	7	4.67
Asthma	6	4.00
Immunodeficiency	5	3.33
Fatty Liver Disease	5	3.33
Depression	5	3.33
Thyroid Disease	5	3.33
Others	12	8.00
Sleep apnea	3	2.00
Gastritis	2	1.3
Thalassemia	1	0.6
Gout	1	0.6
Benignant goiter	1	0.6
History of parotidectomy	1	0.6
History of rhinitis surgery	1	0.6
Recovered from tuberculosis	1	0.6
Anaemia	1	0.6
Uterine fibroids	1	0.6
Pulmonary fibrosis	1	0.6
Hirschsprung’s disease	1	0.6