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Written by: Li Enci
2021-05-05 17:13
Last update date: 2021-05-05 17:14
The CHP stated that the 46-year-old Filipino domestic helper (#11793) who was diagnosed today (5th) had received the first dose of Fubital vaccine on the 18th of last month.
She has a low virus load, with a CT value greater than 30, with N501Y and E484K variant virus strains.
Lin Weixun, a specialist in infection and infectious diseases, said that “Fobitai’s protective power is half and half after a shot, and it will increase over time.” The domestic helper did not have any symptoms, so it is difficult to calculate when she was infected. , Whether the vaccine has been effective.
In addition, because she was infected with a variant virus strain, Lin believes that the vaccine's protection will be reduced.
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The 46-year-old Filipino domestic helper (#11793) has an unknown source of infection and lives in Block N2, Kornhill, Quarry Bay.
According to the CHP yesterday, she had rested in a small park near Victory Park in Tin Hau on May 1; on May 2 she went to the Salia Italian restaurant in West Kowloon Center with friends; she was on May 3 Follow the mandatory testing announcement to the community testing center for testing, and then the diagnosis was confirmed.
The CHP added that she had received the first dose of Fubitai vaccine on the 18th of last month.
She has a low viral load, with a CT value greater than 30, with N501Y and E484K variant virus strains, and is expected to be a South African variant.
Lin Weixun, a specialist in Infection and Infectious Diseases.
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Lin Weixun, a specialist in the Department of Infection and Infectious Diseases, said that there are three factors that have caused foreign domestic helpers to still be infected after the injection.
He quoted data from the Phase III clinical study of Fubitel, stating that after the first dose of vaccination, the protection rate against symptomatic infections was approximately 52%.
A large-scale study conducted in Israel in February this year also showed that the protection rate against infection after the first dose of Fubitel was 46%; the protection rate against symptomatic infection was 57%.
He described that "the protection power is half and half after a shot, and it will increase over time."
Lin Weixun continued that the foreign domestic helper did not have an illness, so it is difficult to calculate the incubation period of the virus. "It may be a few days, maybe ten days, and the vaccine system has begun to exert half of its protection." However, he emphasized that injections can definitely help reduce serious symptoms.
In addition, the Filipino domestic servants were infected with virus strains with variants of N501Y and E484K. Lin Weixun believed that it would reduce the effectiveness of the vaccine's protection.
Xu Shuchang, chair professor of the Department of Respiratory System at CUHK, once cited research as saying that Fubitel's antibody level against the South African variant virus has dropped by 90%.
▼Starting from April 29, the social distancing measures will be relaxed with the vaccine bubble frame▼
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