Study of the Effectiveness of The COVID-19 Vaccine

This research is a cross-sectional study with a descriptive-analytic design, community-based, of adults who live in Surakarta (age 18 years and over) using the Google form. The inclusion criteria were health workers receiving the third or second dose of the COVID-19 vaccine. Quantitative antibody titers are checked at Prodia's laboratory. Other variables examined were the number and date of vaccination, age, sex, comorbid diseases, body mass index, AEFI symptoms after the vaccine, and history of being infected with COVID-19. In the statistical analysis using the different and regression correlation tests, the significance level of P is less than 0.05.

• COVID-19 Antibody (Diagnostic test), also known as COVID-19 Immunoglobulin: 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.

Primary outcomes

• quantitative anti-sars-cov-2 titers [Change of quantitative anti-sars-cov-2 titers before the second booster of vaccination COVID-19 and one month 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-2 Spike protein (S) which aims to assess the adaptive humoral immune response to the SARS-CoV-2 Spike protein. Measurement with the ECLIA method. Ratio Scale

Sex: All, ages: 18 Years to 60 Years, accepts healthy volunteers

Inclusion Criteria:

* Health workers who receive the second booster of COVID-19 vaccination

Exclusion Criteria:

* Pregnancy

• Results publication: Pratama YS, Pradiptakirana R, Rachmah A, Prabowo NA. Autoimmune Thrombocytopenia in SLE and COVID-19. Eur J Case Rep Intern Med. 2021 Nov 3;8(11):002863. doi: 10.12890/2021_002863. eCollection 2021. PMID 34912736
• Results publication: Sholihah MM, Kusuma TRH, Hanif MI, Prabowo NA. Letter to the Editor on Type 1 diabetes onset triggered by COVID-19. Acta Diabetol. 2021 Sep;58(9):1283-1284. doi: 10.1007/s00592-021-01761-3. Epub 2021 Jun 28. No abstract available. PMID 34181079

• Nurhasan Agung Prabowo, MD, Principal investigator, Universitas Sebelas Maret