Since VaxYes was originally created in the US for Americans based on the vaccination guidelines of the CDC, our current VaxYes flow automatically supports the following:

  • All 2-dose series where both doses are the same brand, such as the Pfizer or Moderna vaccines

  • Single-dose vaccines, such as Johnson & Johnson’s Janssen vaccine


  • Any additional boosters of any brand

Currently, the VaxYes flow does not support the mixing of vaccine brands for the 1st and 2nd dose. If you have two different brands for your first and second doses, please enter your lot information correctly but select the same two brands for your 1st and 2nd doses and then send us an email at [email protected]. Let us know the correct brands for your 1st and 2nd doses and we can adjust your record on your behalf.


A Record that Requires Support Assistance—

1st dose: AstraZeneca

2nd dose: Pfizer

Booster 1: Pfizer

Booster 2: Pfizer

A Record that Does Not Require Support Assistance—

1st dose: Moderna

2nd dose: Moderna

Booster 1: Pfizer

Booster 2: Moderna

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