China's inhalable COVID vaccine may boost antibodies 300-fold
Zee News
The study suggests a heterologous (mix-match vaccine regimen) prime-boost regimen to increase the breadth, intensity and duration of the immune response, more than a homogeneous (same vaccine regimen) booster shot,
Beijing: An inhalable COVID-19 vaccine developed by China's CanSino Biologics has shown an increase of 250- to 300-fold in neutralising antibody levels as a booster shot, the media reported.
According to latest lab studies by the Chinese drug maker, the aerosolised inhaled adenovirus Type-5 vector-based COVID-19 vaccine (Ad5-nCoV), taken after completing two doses of inactivated vaccine shots for half a year, is proven to be safe and significantly more immunogenic than taking an inactivated vaccine as a booster, the Global Times reported.
In contrast, taking an inactivated vaccine as a booster after two inactivated vaccine shots, increases the neutralising antibodies by only 30 times, it added.