Table 1.

Overview of general characteristics of the COVID-19 vaccines approved in Europe

	Comirnaty	Moderna	Vaxzevria	Janssen*
Type	mRNA	mRNA	Viral vector	Viral vector
Age, years	≥16	≥18	≥18	≥18
Number of doses	2	2	2	1
Efficacy, %	95	94.5	76	66
Storage	−90°C to −60°C	−25°C to −15°C	2°C to 8°C	−25°C to −15°C*
Price per dose, US$	14.70–19.90	15–18	2.15–5.25	8.50

^* COVID-19 vaccine Janssen can be stored at 2°C to 8°C for 3 months. Sources:^15,39