15th September 2021 – (Hong Kong)The Science Committee of the Centre for Health Protection held a meeting today (15th). The expert committee will recommend to the authorities that adolescents between the ages of 12 and 17 only need one injection of Comirnaty because many cases of myocarditis and pericarditis appeared after the second shot. Professor Lau Yu–lung, chairman of Scientific Committee on Vaccine Preventable Diseases said that Hong Kong started to vaccinate young people aged 12 to 15 with Comirnaty vaccination on 14th June.
It was soon discovered that some had myocarditis and pericarditis after vaccination. He also pointed out that as a pediatrician, he has received 37 related cases so far, of which 32 were boys and 5 were girls. The median age for young patients with symptoms of myocarditis and pericarditis was 15 years old. 30 of them developed myocarditis and pericarditis after the second injection. The situation is stable. Therefore, after reviewing the Hong Kong and overseas data, the Scientific Committee will recommend to the government that young people aged 12 to 17 should receive only one shot of Corminaty vaccine.
As for the Sinovac vaccine developed by the Mainland, after reviewing the data submitted by Sinovac, Lau pointed out that the committee considered that the risk of adverse cases is similar to that of adults. Therefore, the Science Committee recommended that Sinovac vaccination age should be reduced to 12 years old and requested the government to obtain more data from Sinovac and provide young people with one more option.