Table 1.

Ranking of opinions on the efficacy of different preventive measures against coronavirus infection.

Preventive measure	Estimated efficacy – respondents’ opinion	Share of respondents considering preventive measure to be efficient or very efficient (N=7875)
	Mean rank*	%
Isolation (quarantine)	8.59	92.4
Hand disinfection	7.68	84.2
Hand washing	7.62	83.7
Disinfection of objects and surfaces	7.44	78.5
Mask wearing	5.27	33.0
Vitamin C	4.92	27.3
Antiviral drugs	3.84	14.3
Seasonal influenza vaccination	3.41	14.6
Herbs/tea	3.40	10.2
Essential oils	2.83	7.1

^*a higher rank means a more efficient measure