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Scientists evaluate effectiveness of vaccines against Delta strain

Source : 112 Ukraine

At the same time, they note that the protective effect of Covid-19 vaccines against the Delta variant may be declining
22:15, 31 July 2021

Ceska televize

Feng Jijian, a researcher at the China Center for Disease Control and Prevention, said coronavirus vaccines were slightly less protective against the Delta strain, Aljazeera reported.

"The studies and observational data available so far indicate that the protective effect of Covid-19 vaccines against the Delta variant may be declining, but the available vaccines still have good preventive and protective properties against the Delta variant," he said.

At the same time, his colleague - an expert at the Chinese Center for Disease Control and Prevention Shao Iming - stressed that no vaccine can prevent infection by 100%.

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However, scientists agree that the available variant strains of Covid-19 are still in the controlled range of vaccines created at this time.

Earlier, The New York Times and The Washington Post, citing the US Centers for Disease Control and Prevention, wrote that the Delta strain of coronavirus is significantly more infectious than all other known versions. In addition, it is more likely to overcome vaccine defenses and can cause more serious illness.

The World Health Organization (WHO) believes that the Covid-19 pandemic will not end until at least mid-2022, when each country can potentially vaccinate 70% of its population.

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