SINOVAC Biotech (SINOVAC), a bio-pharmaceutical company that has developed, researched, and manufactured Sinovac, inactivated vaccine against COVID-19, has disclosed results of the latest research from overseas about the safety and efficacy of inactivated vaccines to prevent infection with COVID-19.
Studies of a vaccinated group of children and young people discovered that inactivated vaccines have a low level of undesired adverse physical effects, both short-term and long-term. It is also able to increase antibody levels and boost immunity to COVID-19, both the original strain and the Omicron variant, when received three doses of the vaccine.
Pearson Liu, Senior Director of SINOVAC noted, “Sinovac has been conducting studies on the safety and efficacy of inactivated vaccines in children, both in Hong Kong and other countries, to boost parents’ confidence in the vaccine. Latest, inactivated vaccine has been approved emergency use for adults in more than 60 countries around the world and for children as low as aged 3 years and above in 14 countries. At present, over 260 million doses of Sinovac’s inactivated vaccine have already been administered to children around the world.”
Recently, Sinovac Biotech disclosed data from Instituto de Salud Publica (ISP), Chile about the results of vaccination against COVID-19 in children and adolescents from over 6.9 million doses of vaccine administered. Over the period of the survey, it was found that there were 868 cases of side effects reported from vaccination, which is 0.01% of the total vaccination of children. The report discovered that inactivated vaccine had the lowest rate of reporting, at 10.67 reports per 100,000 doses. Followed by mRNA vaccine at 15.35 reports per 100,000 doses.
Apart from the research on vaccine’s safety, Chile has previously studied the efficacy of inactivated vaccines in children. Data was collected from real doses administered, in which it was found that inactivated vaccines were efficacious in preventing infection with COVID-19 in children by 74.5%. Hospital and ICU admissions rates were reduced by 91% and 93.8% respectively. With regards to the Omicron variant of the virus, it was found that inactivated vaccines were able to reduce hospital and ICU admissions for children aged 3 to 5 by 64.6% and 69% respectively. Another similar study founded that the levels of immunity among the sample group of children were increased after receiving two doses of inactivated vaccine and increased 30-fold after the third booster jab. The rate of increase of antibodies effective against the COVID-19 virus was over 90%, Liu concluded.