Scientists from Harvard University found that dangerous strains of the SARS-CoV-2 coronavirus differ from the Delta variant in a high level of spread. The corresponding scientific work was published in the journal Cell. In addition, they are capable of infecting both vaccinated people and those who have had previous infections.. The study was carried out using a mathematical model that describes the impact of a pandemic caused by hypothetical variants of the coronavirus on populations using various combinations of prevention measures: wearing masks, social distancing and vaccinations..

" However, a variant with both signs can cause more infections, re-infections and breakthrough infections than a variant with only one sign, " Also, once again it became known that vaccination has a positive effect on the fight against coronavirus.. We will remind, earlier the Chinese company CanSino began to conduct clinical trials of a vaccine against COVID-19, which is administered to patients by inhalation. Scientists have calculated a zero COVID patient News from Telegram. Subscribe to our channel https: // t. me / korrespondentnet Author: 1.