Study: Third shot of Sinovac vaccine a big immunity boost


BEIJING: A third shot of the Sinovac Covid-19 vaccine administered six months or more after the second dose will give a remarkable boost to people’s immunity against the deadly virus, a new study has found.

The study was published on medrxiv.org for peer review.

Chinese researchers inoculated over 500 participants with a third dose six to eight months after their second jabs.

They found that the additional shot led to a significant increase in antibody levels, with geometric mean titres assessed 14 days later increasing to 137.9, or approximately three-fold.

The study also found that although neutralising antibody levels declined six months after two Sinovac shots, a two-dose schedule generated good immune memory.

The research was consistent with recent studies on booster immunisation with the AstraZeneca vaccine, which have showed higher concentrations of total antibodies after a third dose.

Experts in viral diseases and infectology have highlighted the efficacy of Chinese vaccines against Covid-19 and its new variants.

“According to the evidence available so far, vaccines that have been licensed by the World Health Organisation are effective against all variants in circulation globally,” said Jairo Mendez Rico, adviser on emerging viral diseases to the Pan American Health Organisation. — Xinhua

Article type: metered
User Type: anonymous web
User Status:
Campaign ID: 46
Cxense type: free
User access status: 3
Join our Telegram channel to get our Evening Alerts and breaking news highlights
   

Next In Aseanplus News

Asean News Headlines as at 8pm on Thursday (Sept 23)
Indonesia approves Australian solar project over US$2.5bil investment
Philippines logs 17,411 new Covid-19 cases, total surges to 2,434,753
Indonesia reports 2,881 new Covid-19 cases, 160 more deaths
Indian man on bail for rape must wash women's clothes for six months
Moderna chief executive sees pandemic over in a year: newspaper
Fitch Ratings places Indosat on negative watch amid planned merger
Vietnam's Van Don Airport welcomes over 300 passengers with ‘vaccine passport’ from France
Debrief: Taiwan's KMT reaches a critical juncture ahead of election for new party chairman
Govt developing token system to help those without smartphones to check in at premises, says KJ

Stories You'll Enjoy


Vouchers