Study of the Effectiveness of The COVID-19 Vaccine

This descriptive study examines the levels of neutralizing antibodies against COVID-19 in health workers before and after the Quantitative Anti-SARS-CoV-2 Test is an examination to measure in vitro quantitative antibodies (including IgG) against the receptor binding domain (RBD) of the SARS-CoV Spike (S) protein. -2, which aims to assess the adaptive humoral immune response to the SARS-CoV-2 Spike protein. Measurement with the ECLIA method. Ratio Scale after the 2nd booster COVID-19 vaccine in Surakarta, Indonesia.