The second stage of testing of the Chinese coronavirus vaccine showed that the drug is safe and
According to the data received, the vaccine showed itssafety for humans. 603 people took part in the vaccine trials. They also conducted trials in a small subset of people aged 55 and over. This data will be used in the third phase of the vaccine trial.
However, the authors note that none of the participantshave not been exposed to the SARS-CoV-2 virus after vaccination, so they cannot say with complete certainty that this is the most effective protection against coronavirus.
The second stage of testing is very important for us: he showed that our vaccine is safe and immunogenic in a large segment of the population. This is an important step in early evaluation of this experimental vaccine. We will be moving on to the third phase of testing soon.
Feng-Cai Zhu, Jiangsu Provincial Center for Disease Control and Prevention, China
About 250 vaccines are currently being developed in the world,which could potentially be used against coronavirus. Among them there are matrix RNA vaccines, replicating or non-replicating viral vector vaccines, DNA-based vaccines, autologous dendritic cell vaccines, and others. At least 17 of them are in clinical trials.
A successful second phase of testing was also announcedresearchers from the UK. The drug was tested on a thousand volunteers - it turned out to be effective and safe. Earlier, the UK signed agreements to provide 90 million doses of two possible vaccines against COVID-19 from the alliance of Pfizer Inc (PFE.N) and BioNTech (22UAy.F) and the French group Valneva (VLS.PA). This was reported by the authorities on Monday.
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