Assessing breakthrough infections: Covishield (late schedule) versus Covaxin - A prospective comparative analysis in the general population

Introduction: Breakthrough infections (BTI) threaten the progress of the COVID-19 vaccination program towards pandemic control. To better understand the future vaccine, knowing the BTI in the general population over a while is important. Aims and Objectives: The study aimed to compare the BTI among...

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Main Authors: Anuradha Nadda, Neha Kapoor, Sahil Sharma, Nikita Sharma, Viyusha T. Viswanathan, Anamika Soni, Ritu Attri, Taranjot Kaur, Nishu Gupta, Nikhil Govil, Kapil Goel, Rahul Gupta
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2025-06-01
Series:Journal of Family Medicine and Primary Care
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Online Access:https://journals.lww.com/10.4103/jfmpc.jfmpc_1714_24
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author Anuradha Nadda
Neha Kapoor
Sahil Sharma
Nikita Sharma
Viyusha T. Viswanathan
Anamika Soni
Ritu Attri
Taranjot Kaur
Nishu Gupta
Nikhil Govil
Kapil Goel
Rahul Gupta
author_facet Anuradha Nadda
Neha Kapoor
Sahil Sharma
Nikita Sharma
Viyusha T. Viswanathan
Anamika Soni
Ritu Attri
Taranjot Kaur
Nishu Gupta
Nikhil Govil
Kapil Goel
Rahul Gupta
author_sort Anuradha Nadda
collection DOAJ
description Introduction: Breakthrough infections (BTI) threaten the progress of the COVID-19 vaccination program towards pandemic control. To better understand the future vaccine, knowing the BTI in the general population over a while is important. Aims and Objectives: The study aimed to compare the BTI among the general population after 1 year of completion of the primary series of Covishield and Covaxin. Materials and Methods: This hospital-based prospective study was conducted among the general population beneficiaries of a COVID-19 vaccination center. Clients aged 18 years or above who had completed second vaccine dose were enrolled using systematic random sampling and followed up for 1 year. Using a semi-structured questionnaire, participants were telephonically interviewed within 1 month, 6 months, and 12 months of the second vaccine dose. Results: Out of 1682 participants who completed the study, 958 (57.0%) and 724 (43.0%) participants received Covaxin and Covishield, respectively. Twenty-nine (3.0%) Covaxin recipients and 25 (3.5%) Covishield recipients reported BTI after 1 year of follow-up with no statistically significant difference among both groups (p-0.624). The binary logistic regression model showed that participants with either diabetes or hypertension had 1.22 times the risk of BTI compared to those without comorbidities (aOR: 1.219, CI: 0.072–20.716, p-0.891). BTI was not significantly associated with the type of vaccine, sex, employment status, and age category of the participants. Conclusion: The study suggests that regardless of the type of vaccine received, the population will be at the same risk and require similar future containment strategies.
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spelling doaj-art-2bbe50fdba474ed89280b83fac07181f2025-08-20T03:31:38ZengWolters Kluwer Medknow PublicationsJournal of Family Medicine and Primary Care2249-48632278-71352025-06-011462307231210.4103/jfmpc.jfmpc_1714_24Assessing breakthrough infections: Covishield (late schedule) versus Covaxin - A prospective comparative analysis in the general populationAnuradha NaddaNeha KapoorSahil SharmaNikita SharmaViyusha T. ViswanathanAnamika SoniRitu AttriTaranjot KaurNishu GuptaNikhil GovilKapil GoelRahul GuptaIntroduction: Breakthrough infections (BTI) threaten the progress of the COVID-19 vaccination program towards pandemic control. To better understand the future vaccine, knowing the BTI in the general population over a while is important. Aims and Objectives: The study aimed to compare the BTI among the general population after 1 year of completion of the primary series of Covishield and Covaxin. Materials and Methods: This hospital-based prospective study was conducted among the general population beneficiaries of a COVID-19 vaccination center. Clients aged 18 years or above who had completed second vaccine dose were enrolled using systematic random sampling and followed up for 1 year. Using a semi-structured questionnaire, participants were telephonically interviewed within 1 month, 6 months, and 12 months of the second vaccine dose. Results: Out of 1682 participants who completed the study, 958 (57.0%) and 724 (43.0%) participants received Covaxin and Covishield, respectively. Twenty-nine (3.0%) Covaxin recipients and 25 (3.5%) Covishield recipients reported BTI after 1 year of follow-up with no statistically significant difference among both groups (p-0.624). The binary logistic regression model showed that participants with either diabetes or hypertension had 1.22 times the risk of BTI compared to those without comorbidities (aOR: 1.219, CI: 0.072–20.716, p-0.891). BTI was not significantly associated with the type of vaccine, sex, employment status, and age category of the participants. Conclusion: The study suggests that regardless of the type of vaccine received, the population will be at the same risk and require similar future containment strategies.https://journals.lww.com/10.4103/jfmpc.jfmpc_1714_24covid-19 vaccinesbreakthrough infectionsvaccinationbbv152 covid-19 vaccinechadox1 ncov-19pandemics
spellingShingle Anuradha Nadda
Neha Kapoor
Sahil Sharma
Nikita Sharma
Viyusha T. Viswanathan
Anamika Soni
Ritu Attri
Taranjot Kaur
Nishu Gupta
Nikhil Govil
Kapil Goel
Rahul Gupta
Assessing breakthrough infections: Covishield (late schedule) versus Covaxin - A prospective comparative analysis in the general population
Journal of Family Medicine and Primary Care
covid-19 vaccines
breakthrough infections
vaccination
bbv152 covid-19 vaccine
chadox1 ncov-19
pandemics
title Assessing breakthrough infections: Covishield (late schedule) versus Covaxin - A prospective comparative analysis in the general population
title_full Assessing breakthrough infections: Covishield (late schedule) versus Covaxin - A prospective comparative analysis in the general population
title_fullStr Assessing breakthrough infections: Covishield (late schedule) versus Covaxin - A prospective comparative analysis in the general population
title_full_unstemmed Assessing breakthrough infections: Covishield (late schedule) versus Covaxin - A prospective comparative analysis in the general population
title_short Assessing breakthrough infections: Covishield (late schedule) versus Covaxin - A prospective comparative analysis in the general population
title_sort assessing breakthrough infections covishield late schedule versus covaxin a prospective comparative analysis in the general population
topic covid-19 vaccines
breakthrough infections
vaccination
bbv152 covid-19 vaccine
chadox1 ncov-19
pandemics
url https://journals.lww.com/10.4103/jfmpc.jfmpc_1714_24
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