Four Chinese Covid-19 vaccines have started the third phase of clinical trials internationally. According to the State Council for the Prevention and Control of Covid-19, some third-stage tests will complete the first phase of vaccination in early September, with preliminary data expected to be available by November.
Thousands of people are usually involved in the third phase of clinical trials to verify the safety and efficacy of the vaccine, Xinhua reported.
With the epidemic under control in China, there is no need to conduct large-scale clinical trials. So all the third phase trials are being conducted outside the country.
According to Johns Hopkins University (JHU), 6,37,124 people have died from coronavirus worldwide as of Saturday morning. Besides, the number of victims has increased to 2 crore 46 lakh 34 thousand 448 people.
According to the JHU, Brazil ranks second after the United States in the list of countries affected by the Corona. So far, more than 36 lakh people have been infected in the country and one lakh 19 thousand 504 people have died.
China is apparently not sharing the world its knowledge about making vaccines for covid 19