The Pfizer booster is only for those who have received the Pfizer vaccine; it is not recommended for those who received the Moderna or Johnson & Johnson vaccine.
ເຄື່ອງເສີມ Pfizer ແມ່ນໃຊ້ສະເພາະກັບຜູ້ທີ່ໄດ້ຮັບຢາວັກຊີນ Pfizer; ມັນບໍ່ໄດ້ຖືກແນະນໍາໃຫ້ສໍາລັບຜູ້ທີ່ໄດ້ຮັບວັກຊີນ Moderna ຫຼື Johnson & Johnson.