Table 2.

Graded doses regimen of Pfizer/BioNTech COVID-19 vaccine

Undiluted doses	Volume, mL	Time following previous dose, min
Protocol 1 for patients with HSR to the first dose of COVID-19 vaccines
1	0.05	0
2	0.10	30
3	0.15	30
Protocol 2 for patients at high risk of developing HSR to COVID-19 vaccine 1	0.05	0
2	0.25	30

COVID-19, coronavirus disease 2019; HSR, hypersensitivity reaction.