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An anti-Covid-19 vaccine developed and tested in Russia generated antibodies in dozens of subjects studied, and while the vaccine often caused side effects such as fever, those side effects were largely mild, according to published data. Friday in The Lancet, CNN reports.
Russia drew criticism when it announced the world’s first approved coronavirus vaccine in August, just before the completion of crucial studies in the third phase of testing.
In phase 1 and 2 studies of the vaccine, called Sputnik V, all 76 study participants developed antibodies against the virus that causes Covid-19, according to a report published Friday in The Lancet.
The amount of antibodies generated by the vaccine was similar to the immune response humans had after natural recovery from Covid-19 disease, according to the study.
The researchers also looked at the responses of T cells, another component of the immune system.
Scientists who were not involved in the study said that while the results are a positive sign, only the largest phase 3 studies can confirm whether the vaccine actually prevents Covid-19 disease.
Read also WHO Warning: Mass vaccination against COVID will not be possible before mid-2021
