(TIME) — Coronavirus vaccine from Moderna generates positive immune responses.
Researchers testing the Moderna vaccine report promising results from the first dozens of volunteers
The study, led by the National Institute of Allergy and Infectious Diseases (NIAID) at the National Institutes of Health, involves 45 healthy people who received one of three different doses of the vaccine. According to Moderna, there are encouraging early signs that the shot generates antibodies against the COVID-19 virus, SARS-CoV-2, in levels that were similar to or higher than those seen in the plasma of people who recovered from infections.
The phase 1 study is actually not designed to measure effectiveness of the vaccine—it is is focused primarily on safety. Nevertheless, the hints of efficacy emerging from the trial are encouraging. The level of antibodies seen in the participants show that the vaccine can attract and awaken the body’s immune response to mount a defense against SARS-CoV-2. The data also hinted that the higher doses prompted stronger immune responses.