Table 4. Rates of improvement of clinical symptoms after 5 days of no treatment and treatment with OSV, OSV+CAM, ZNV and ZNV+CAM.

Improvement (%)	Fever	Sore throat	Cough	Nasal discharge	Headache	Body aches
No treatment (n = 68)	94.1 (64/68)	92.0 (23/25)	35.4 (23/65)	41.5 (27/65)	96.0 (24/25)	100 (16/16)
OSV (n = 70)	94.3 (66/70)	68.2 (15/22)	31.3 (20/64)	39.4 (26/66)	100 (21/21)	100 (26/26)
OSV+CAM (n = 20)	95.0 (19/20)	80.0 (4/5)	58.8* (10/17)	61.1 (11/18)	100 (4/4)	100 (4/4)
ZNV (n = 27)	96.3 (26/27)	93.3 (14/15)	50.0 (12/24)	37.5 (9/24)	86.7 (13/15)	87.5 (7/8)
ZNV+CAM (n = 10)	100 (10/10)	100 (5/5)	60.0 (6/10)	77.8¶ (7/9)	100 (6/6)	100 (3/3)

Data are percentage of patients who reported disappearance of symptoms per patients with symptoms at the start of treatment.

^* P<0.05, versus OSV (Fisher's exact test).

^¶ P<0.05, versus ZNV (Fisher's exact test).