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1.
Indian J Community Med ; 48(4): 539-543, 2023.
Article in English | MEDLINE | ID: mdl-37662139

ABSTRACT

Background: The objective was studying the antibody response following immunization with COVID-19 vaccines. Material and Methods: It was a longitudinal study of healthcare workers (HCWs). Two groups were taken, Group 1 had taken first dose of the COVID-19 vaccine, at least 3 weeks have passed. Group 2 had taken two doses of COVID-19 vaccine and at least 2 weeks have passed. A quantitative test for antibodies to SARS-CoV-2 spike protein was done. Follow-up of both groups was done after 3 months of collection of the first sample. Results: The antibody titre of the 57 HCWs in Group 1, decreased significantly 125 days after the first dose [median = 2,013 U/ml] as compared to the titre 30 days after the first dose of Covishield vaccine[median = 9,965.26 U/ml]. The median interval between two doses of vaccine was 34 days. In Group 2, the antibody titre of the 60 HCWs in Group 2, decreased significantly 114 days after second dose[median = 1,411 U/ml] as compared to the titre 19.5 days after second dose of Covishield vaccine [median = 2,377.5]. There was no significant difference in the antibody titre in follow-up samples of HCWs with and without side effects. Conclusion: The antibody titre decreases after 13 to 17 weeks post the second dose of Covishield vaccination. The decision of the Government of India to increase the interval between two doses of Covishield is justified. Low antibody titre can be the reason for breakthrough infections. The antibody titre was not related to side effects post-vaccination.

2.
J Family Med Prim Care ; 11(4): 1322-1326, 2022 Apr.
Article in English | MEDLINE | ID: mdl-35516686

ABSTRACT

Introduction: COVID-19 poses a great threat globally and also a huge burden on developing countries due to its expensive, less effective, and toxic treatment. India is one of the countries with large number of confirmed cases. This study is done to assess the death due to COVID-19 on various parameters so that necessary action can be taken to reduce the disease burden of COVID-19. Aim and Objective: I) To find sociodemographic and other factors associated with mortality. II) To study various comorbidities related to the death due to COVID-19 infection. III) Recommendation for reducing mortality in COVID-19 patients. Material and Method: Data related to COVID-19 death was taken from MRD (Medical Record Department) & e-Health records from HMIS and was analyzed by Bivariate analysis in SPSS. Results: Results showed that people with 1--2 comorbidity have 62% death. Mortality was found to be more in elderly, that is, >60 years age group with 67.5% of total mortality. And in males (68.6%) as compared to female. Conclusion: People with comorbidities have significant association. Also, it showed that death was more common in male and elderly age group as compared to female and youngsters.

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