An 11-year-old Hong Kong girl vaccinated with the Pfizer-BioNTech vaccine had symptoms of myocarditis.
Since then, the Hong Kong Centre for Health Protection extended the interval between the first and second doses of the Pfizer-BioNTech vaccine from three to eight weeks for people between 18 and 59.
Dr. Edmund Lam Wing-wo, a member of the Scientific Committee on Vaccine Preventable Diseases, responded on a radio program on June 20, 2022, that the World Health Organisation announced in January 2022 their recommendation for an 8-week interval between the first two doses. Studies have also shown that the risk of myocarditis or pericarditis caused by a longer interval could be lower. But due to the severe pandemic situation in Hong Kong during January, when all citizens were in urgent need of injections, they decided not to follow the WHO guidelines….