Arturo Pareja Cruz, Julio César Luque Espino, Pedro Javier Navarrete Mejía, Joel de León Delgado, Jesús Demóstenes Gonzáles Moscoso
{"title":"Respuesta inmune humoral a cuatro vacunas contra el SARS-CoV-2 en profesionales de la salud","authors":"Arturo Pareja Cruz, Julio César Luque Espino, Pedro Javier Navarrete Mejía, Joel de León Delgado, Jesús Demóstenes Gonzáles Moscoso","doi":"10.24265/horizmed.2022.v22n2.06","DOIUrl":null,"url":null,"abstract":"Objective: To describe the concentration of neutralizing antibodies in serum from healthcare professionals who received any of the SARS-CoV-2 vaccines developed by Sinopharm, Pfizer or Johnson & Johnson, or CureVac’s vaccine candidate. Materials and methods: An observational, descriptive, retrospective, cross-sectional research which included 217 healthcare professionals fully vaccinated with Sinopharm, Pfizer or Johnson & Johnson’s vaccines, or CureVac’s vaccine candidate. The presence of anti-SARS-CoV-2 neutralizing antibodies in serum was determined in these individuals using the electrochemiluminescence immunoassay (ECLIA). Variables such as age, sex, history of infection with SARS-CoV-2, concentration of neutralizing antibodies and brand of vaccine administered were considered. Results: Sixteen point six zero percent (16.60 %) of the healthcare professionals stated that they had already had COVID-19 before receiving the vaccine. They were immunized with the vaccines developed by Sinopharm (74.65 %), Pfizer (12.90 %) or Johnson & Johnson (5.07 %), or CureVac’s vaccine candidate (7.37 %). Regardless of the vaccine received, 42.50 % of the individuals who had not been previously infected with SARS-CoV-2 and 16.70 % of those who had been previously infected Arturo Pareja Cruz; Julio César Luque Espino; Pedro Javier Navarrete Mejía; Joel de León Delgado; Jesús Demóstenes Gonzáles Moscoso https://doi.org/10.24265/horizmed.2022.v22n2.06 did not develop neutralizing antibodies. Pfizer’s vaccine produced the highest concentration of neutralizing antibodies (196.27 AU/mL) in patients with or without previous infection. Conclusions: The study demonstrates that vaccination boosts immunity in people previously infected with the novel coronavirus and suggests that Pfizer’s vaccine produces the highest concentration of neutralizing antibodies.","PeriodicalId":396953,"journal":{"name":"Horizonte Médico (Lima)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Horizonte Médico (Lima)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.24265/horizmed.2022.v22n2.06","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Objective: To describe the concentration of neutralizing antibodies in serum from healthcare professionals who received any of the SARS-CoV-2 vaccines developed by Sinopharm, Pfizer or Johnson & Johnson, or CureVac’s vaccine candidate. Materials and methods: An observational, descriptive, retrospective, cross-sectional research which included 217 healthcare professionals fully vaccinated with Sinopharm, Pfizer or Johnson & Johnson’s vaccines, or CureVac’s vaccine candidate. The presence of anti-SARS-CoV-2 neutralizing antibodies in serum was determined in these individuals using the electrochemiluminescence immunoassay (ECLIA). Variables such as age, sex, history of infection with SARS-CoV-2, concentration of neutralizing antibodies and brand of vaccine administered were considered. Results: Sixteen point six zero percent (16.60 %) of the healthcare professionals stated that they had already had COVID-19 before receiving the vaccine. They were immunized with the vaccines developed by Sinopharm (74.65 %), Pfizer (12.90 %) or Johnson & Johnson (5.07 %), or CureVac’s vaccine candidate (7.37 %). Regardless of the vaccine received, 42.50 % of the individuals who had not been previously infected with SARS-CoV-2 and 16.70 % of those who had been previously infected Arturo Pareja Cruz; Julio César Luque Espino; Pedro Javier Navarrete Mejía; Joel de León Delgado; Jesús Demóstenes Gonzáles Moscoso https://doi.org/10.24265/horizmed.2022.v22n2.06 did not develop neutralizing antibodies. Pfizer’s vaccine produced the highest concentration of neutralizing antibodies (196.27 AU/mL) in patients with or without previous infection. Conclusions: The study demonstrates that vaccination boosts immunity in people previously infected with the novel coronavirus and suggests that Pfizer’s vaccine produces the highest concentration of neutralizing antibodies.