Beijing institute of microbiology and epidemiology - Latest News Update, Information, Photos & Videos on Beijing institute of microbiology and epidemiology at Lokmat Times

Beijing, June 21 Two doses of Chinese Covid vaccine Sinopharm produced nothing or only minimally detectable neutralising activity against some Omicron sub-variants, according to a small study published in The Lancet Infectious Diseases journal.A third booster dose, however, partly restored the neutralising activity, revealed the study led by Chinese researchers from Anhui Medical University in Hefei and Beijing Institute of Microbiology and Epidemiology.The study analysed 25 individuals who received two doses of BBIBP-CorV vaccine. They found that the neutralising activity against Omicron sub-variants such as BA.1, BA.2, BA.2.11, BA.2.12.1, BA.2.13, and BA.4/BA.5 "was not or only minimally detectable".Neutralising activity against these sub-variants was observed in 24-48 per cent of people who received a BBIBP-CorV booster post a two-dose shot.The neutralising activity saw a slight improvement to 30-53 per cent among 30 participants who received a third dose of another Covid vaccine ZF2001, developed by Anhui Zhifei Longcom.Further, the findings showed that the BA.2.12.1 subvariant showed significantly more resistance than the BA.2 subvariant to a BBIBP-CorV booster, and the BA.2.11, BA.2.12.1, and BA.2.13 sub-variants showed significantly more resistance than the BA.2 subvariant to a ZF2001 booster.The serum neutralising antibody titres against all tested pseudoviruses did not differ between people who received a BBIBP-CorV booster and those who received a ZF2001 booster.About 18 people had BA.1 breakthrough infection and 15 people had BA.2.2 breakthrough infection. In addition, neutralising antibodies against omicron sub-variants above the limit of detection accounted for 88-100 per cent of infections, the study showed.Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

Home

City

Latest News

Cricket

LT Premium

National

International

Maharashtra

Opinions

Chhatrapati Sambhajinagar

Nagpur

Entertainment

Photos

Business

Technology

Sports

Lifestyle

Social Viral

Lokmat Games

Health

Pahalgam Terror Attack

Tahawwur Rana

IPL 2025

CM Devendra Fadnavis

Mumbai Local

Weather Update

Beijing Institute Of Microbiology And EpidemiologyFOLLOW

Beijing institute of microbiology and epidemiology, Latest News

Health :China's Sinopharm shot ineffective against some Omicron sub-variants

Beijing, June 21 Two doses of Chinese Covid vaccine Sinopharm produced nothing or only minimally detectable neutralising activity ... ...