Thai specialist: Sinovac can provide up to 99.4% immunity


A person receives the second dose of Sinovac's Covid-19 vaccine at the Bang Khun Thian Geriatric Hospital in Bangkok, Thailand on April 21, 2021. - Reuters

BANGKOK (The Nation/ANN): The Sinovac vaccine provides as much as “99.4 per cent immunity against Covid-19 a month after the second dose”, Chulalongkorn University virology specialist and chief of the Centre of Excellence in Clinical Virology Dr Yong Poovorawan said in a Facebook post on Thursday (April 22).

He was citing a study on immunity by the centre and Banphaeo General Hospital in Samut Sakhon.

Researchers studied the immunity of people before and after they received two doses of the Chinese vaccine, administered three weeks apart.

“We found that a person’s immunity greatly increased on receiving the vaccine. A month after the second jab, immunity then increased, similar to immunity in patients who had already been infected for 4-8 weeks, ” he explained.

The Sinovac vaccine provides as much as “99.4 per cent immunity against Covid-19 a month after the second dose”, Chulalongkorn University virology specialist and chief of the Centre of Excellence in Clinical Virology Dr Yong Poovorawan said in a Facebook post on Thursday.

“People who received the vaccine have 99.4 per cent immunity against the Covid-19 spike protein, while it was 92.5 per cent for patients who had already been infected, ” he said.

Yong said the centre is conducting a long-term study on immunity in a bid to predict the chance of Covid-19 infections.

“We already know that patients who have been cured can be infected by Covid-19 again, but the severity is likely to be less severe than the first time, ” he said.

“In the long term, this study will tell us whether it is necessary to administer a third Covid-19 jab and if so then when should it be administered, ” he added. - The Nation/Asia News Network

Article type: metered
User Type: anonymous web
User Status:
Campaign ID: 46
Cxense type: free
User access status: 3
   

Next In Aseanplus News

Brunei reports 1 new imported Covid-19 case, 232 cases in total
Foreign visitors to Cambodia decrease by 94 per cent in Q1
Myanmar teen describes junta's brutal treatment of detained women
Sinopharm to produce 5 billion doses per year with foreign partners: firm executives
Japan adds three more prefectures to virus state of emergency
Thai universities to open from June 14
Philippines to ease Covid curbs in capital as daily cases decline
China's commerce minister vows better service for foreign firms
Uighurs in Xinjiang, China celebrate first day of Aidilfitri with prayers, family gatherings
‘Economies still vulnerable’

Stories You'll Enjoy


Vouchers