Patients vaccinated against coronavirus remain infectious by 60% if they get sick because of the “gamma” strain. These conclusions were reached by scientists from France and Guiana, the results of the study are published on the website of the Center for Disease Control and Prevention.
Experts investigated the outbreak of coronavirus, which occurred at a gold mine in Guiana in May 2021. The study involved 44 employees, their average age was 53 years. 25 people were fully vaccinated with the Pfizer-BioNTech vaccine.
15 out of 25 miners (60%) who received both components of the drug were infected with the” Gamma” strain of SARS-CoV-2. About 87% of patients complained of various symptoms associated with the infection: 65% of patients had a fever, 22.6% had shortness of breath,” the publication says.
It is noted that none of the infected did require hospitalization, because the disease was in a mild form.
“The low effectiveness of the vaccine came as a surprise since during in vitro tests, the Pfizer-BioNTech drug was equally successful in neutralizing the beta and gamma strains,” the scientists concluded.
Earlier, the WHO named a variant of COVID-19, which will dominate the world for several months.