Study shows CoronaVac to have high seroconversion rate after 40 days

Researchers from the Federal University of Paraná, Brazil, looked into the seroconversion rate after vaccination with the CoronaVac. Using immunoassays, they measured the immunoglobulins (IgG) for anti-nucleocapsid protein (anti-N) antibodies and anti-spike-1 (anti-S1) protein antibodies.