Study Reveals Quick Immune Response By Sincovac's Covid-19 V
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Sinovac Biotech's experimental COVID-19 vaccine CoronaVac triggered a quick immune response but the level of antibodies produced was lower than in people who had recovered from the disease, preliminary trial results showed on Wednesday (Nov 18).

While the early to mid-stage trials were not designed to assess the efficacy of CoronaVac, researchers said it could provide sufficient protection, based on their experience with other vaccines and data from preclinical studies with macaques.

"Our findings show that CoronaVac is capable of inducing a quick antibody response within four weeks of immunisation by giving two doses of the vaccine at a 14-day interval," Zhu Fengcai, one of the authors of the paper, said.

'ATTRACTIVE OPTION' CoronaVac is one of three experimental COVID-19 vaccines China has been using to inoculate hundreds of thousands of people under an emergency use programme. Gang Zeng, a Sinovac researcher involved in the CoronaVac study, said the vaccine could be an attractive option because it can be stored at normal fridge temperatures of 2 to 8 degrees Celsius and may remain stable for up to three years.

Pfizer's vaccine must be stored and transported at -70 degrees Celsius though it can be kept in a normal fridge for up to five days, or up to 15 days in a thermal shipping box.

Indonesia has sought emergency authorisation to start a mass vaccination campaign by the end of the year and vaccines produced by Sinovac and China's Sinopharm are slated to be used in the early stages of the campaign.

Source:
https://www.channelnewsasia.com/news/asia/sinovac-covid-19-vaccine-induces-quick-immune-response-study-13582538
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