Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, syringe, medic.

Vaccine, syringe, medic.

arm vaccination scene, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, syringe, medic.

Vaccine, syringe, medic.

arm vaccination scene, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, syringe, medic.

Vaccine, syringe, medic.

detail of syringe for vaccination, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, syringe, medic.

Vaccine, syringe, medic.

detail of syringe for vaccination, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, syringe, medic.

Vaccine, syringe, medic.

detail of syringe for vaccination, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, syringe, medic.

Vaccine, syringe, medic.

detail of syringe for vaccination, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine, Comirnaty, Pfizer, syringe, medic.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, medic.

Vaccine, Comirnaty, Pfizer, medic.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, medic.

Vaccine, Comirnaty, Pfizer, medic.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 10, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, logo, syringe.

Vaccine, Comirnaty, Pfizer, logo, syringe.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, logo, syringe.

Vaccine, Comirnaty, Pfizer, logo, syringe.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Remdesivir, Veklury, drugs, syringe.

Remdesivir, Veklury, drugs, syringe.

Experimental antiviral drug for COVID-19 Remdesivir, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, logo, syringe.

Vaccine, Comirnaty, Pfizer, logo, syringe.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, logo, syringe.

Vaccine, Comirnaty, Pfizer, logo, syringe.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, logo, syringe.

Vaccine, Comirnaty, Pfizer, logo, syringe.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Remdesivir, Veklury, drugs, syringe.

Remdesivir, Veklury, drugs, syringe.

Experimental antiviral drug for COVID-19 Remdesivir, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, logo, syringe.

Vaccine, Comirnaty, Pfizer, logo, syringe.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Sputnik V, syringe.

Vaccine, Sputnik V, syringe.

Vaccine for COVID-19 and Sputnik V logo, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Remdesivir, Veklury, drugs, syringe.

Remdesivir, Veklury, drugs, syringe.

Experimental antiviral drug for COVID-19 Remdesivir, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Remdesivir, Veklury, drugs, syringe.

Remdesivir, Veklury, drugs, syringe.

Experimental antiviral drug for COVID-19 Remdesivir, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Sinopharm, syringe.

Vaccine, Sinopharm, syringe.

Vaccine for COVID-19 and Sinopharm logo, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Novavax, syringe.

Vaccine, Novavax, syringe.

Vaccine for COVID-19 and Novavax logo, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Moderna, syringe.

Vaccine, Moderna, syringe.

Vaccine for COVID-19 and Moderna logo, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, AstraZeneca, syringe.

Vaccine, AstraZeneca, syringe.

Vaccine for COVID-19 and AstraZeneca logo, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer.

Vaccine, Comirnaty, Pfizer.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Johnson and Johnson, syringe.

Vaccine, Johnson and Johnson, syringe.

Vaccine for COVID-19 and Johnson and Johnson, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Pfizer, syringe.

Vaccine, Pfizer, syringe.

Vaccine for COVID-19 and Pfizer logo, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine, Comirnaty, Pfizer, syringe.

Vaccine for COVID-19 Comirnaty made by Pfizer and BioNTech, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Remdesivir, Veklury, drugs, syringe, hands in gloves.

Remdesivir, Veklury, drugs, syringe, hands in gloves.

Experimental antiviral drug for COVID-19 Remdesivir, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)

Remdesivir, Veklury, drugs, syringe, hands in gloves.

Remdesivir, Veklury, drugs, syringe, hands in gloves.

Experimental antiviral drug for COVID-19 Remdesivir, in Prague, Czech Republic, April 5, 2021. (CTK Photo/Martin Macak Gregor)