Evaluation of IgG Antibody Response to Severe Acute Respiratory Syndrome Coronavirus-2 in Healthcare Workers in a Tertiary Care Centre, Chennai, India
| Autor: | Therese MARY Dhason, Suganthi MANIKESI, Usha Krishnan, Vasant hamani, Hemalatha, C Devi, Nishat, B Manjula |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Journal of Clinical and Diagnostic Research, Vol 15, Iss 6, Pp DC22-DC26 (2021) |
| Druh dokumentu: | article |
| ISSN: | 2249-782X 0973-709X |
| DOI: | 10.7860/JCDR/2021/48889.14995 |
| Popis: | Introduction: Globally, the Coronavirus Disease-2019 (COVID19) pandemic poses a high risk for Healthcare Workers (HCWs) who are among the population that is most vulnerable of being infected with Severe Acute Respiratory SyndromeCoronavirus-2 (SARS-CoV-2). With a prevailing pandemic such as COVID-19, it becomes important to understand the presence and persistence of antibodies in the serum of HCW, testing positive for COVID-19 on Reverse transcriptase Polymerase Chain Reaction (RT-PCR). An understanding of the prevalence of IgG antibodies against COVID-19 and the duration for which they are present in the serum will help in predicting the immune response of individuals against the disease. Aim: To study the prevalence of COVID-19 IgG antibodies in laboratory confirmed COVID-19 RT-PCR positive symptomatic, asymptomatic and RT-PCR negative subjects. Materials and Methods: The present longitudinal study was conducted from April 2020 to December 2020 with a sample size of 90 participants based on a pilot study. Blood sample was collected and serum was separated. Enzyme Linked Immunosorbent Assay (ELISA) was done to detect the presence of COVID-19 IgG antibody in serum. Chi-square test and Pearson correlation were used to find out the statistical significance of COVID-19 IgG antibodies in COVID-19 positive and negative HCWs and the relationship between Cycle threshold values (Ct) and antibody levels, respectively. Results: Fever with sore throat was the most common (33%) symptom. Chi-square test done to compare IgG among RT-PCR positive and negative subjects showed p-value of |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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