Table I.

Demographics of the study population.

	Vaccinated	Non-Vaccinated
Subjects Enrolled	n=54	n=32
Age (Median)	65 (60 -78)	63 (60 -80)
Gender (M/F)	34/20	15/17
Height (Median)	160 cm	155 cm
Weight (Median)	62 Kg	63 Kg
Pulse rate (Median)	86	88
Systolic Blood Pressure (Median)	132	140
Diastolic Blood Pressure (Median)	81	80
SPOS% (Median)	98	98
Diabetes Mellitus no. (%)	14 (26 %)	5 (15 %)
Smoking, no. (%)	2 (4 %)	2 (6 %)
Alcoholism, no. (%)	3 (6 %)	2 (6 %)
Cardiovascular Disease, no. (%)	8 (15 %)	3 (9 %)
Respiratory Diseases, no. (%)	5 (9 %)	2 (6%)