In the meantime, he said that the Novavax Covid-19 vaccine was also among the vaccines being considered by the government, and is in negotiations with its manufacturer.
He said that a group of experts has been following the development of the vaccine and took note of several cases of blood clots identified by the regulatory body in the United Kingdom.
Senior citizens aged 60 and above and frontline workers — who were fully vaccinated with either Pfizer or Sinovac — are eligible for booster shots with the Pfizer vaccine.
Amir also stressed that Khairy must reveal the company behind the website.
Initially scheduled to go live at noon sharp, the bookings were only opened shortly after 12.
Khairy added that he has also made an offer to the Sarawak state government to consider the use of the AstraZeneca vaccine, owing to concerns over its upcoming state polls.