But, she does not have any activities on the diary for the afternoon.
Lam also criticized medical professionals, who she said had attempted to smear the mainland-made vaccine.
She condemned "a very small minority,'' who, she said was trying to "sabotage'' innoculations.
Fake news and misinformation are shared through social media.
Lam received the second dose of the vaccine along with senior officials, advisers and legislators. Chief Secretary, Matthew Cheung Kin-chung, and the Secretary for Justice, Teresa Cheng, were among them.
She said that she and a number of secretaries of departments and directors of bureaux took the lead to receive the first dose of the Sinovac vaccine last month, hoping to encourage people.
"Since the program was launched about a month ago, more than 350,000 have already received their first dose of a vaccine. ''
Lam said a fourth vaccine will be purchased. A total 30 million doses are to be ordered.