Safety of Janssen Ad26.COV.S and Astra Zeneca AZD1222 COVID-19 Vaccines among Mobile Phone Users in Malawi : Findings from a National Mobile-Based Syndromic Surveillance Survey, July 2021 to December 2021
The safety profiles of the Ad26.COV2.S and AZD1222 COVID-19 vaccines have not been described in the general population in Malawi. We present self-reported adverse events (AE) following the receipt of these vaccines in Malawi as part of a national syndromic surveillance survey. We conducted phone-based syndromic surveillance surveys among adults (≥18 years) with verbal consent. We used secure tablets through random digit dialing to select mobile phone numbers and collected data electronically. Survey questions included whether the respondent had received the COVID-19 vaccines, whether they had experienced any AE following vaccination, and the severity of the AE. We used multivariable analysis to identify factors associated with self-reported AE post-COVID-19 vaccination. A total of 11,924 (36.0%) out of 33,150 respondents reported receiving at least one dose of either Ad26.COV2.S or AZD1222 between July-December 2021; of those, 65.1% were female. About 49.2% of the vaccine recipients reported at least one AE, 90.6% of which were mild, and 2.6% were severe. Higher education level and concern about the safety of COVID-19 vaccines were associated with AE self-report (Adjusted Odds Ratio [AOR] 2.63 [95% CI 1.96-3.53] and 1.44, [95% CI 1.30-1.61], respectively), while male gender and older age were associated with reduced likelihood of AE self-report (AORs 0.81, [95% CI 0.75-0.88], 0.62 [95% CI 0.50-0.77], respectively). Ad26.COV2.S and AZD1222 vaccines are well-tolerated, with primarily mild and few severe AE among adults living in Malawi. Self-reporting of AE following COVID-19 vaccination is associated with gender, age, education, and concern about the safety of the vaccines. Recognizing these associations is key when designing and implementing COVID-19 vaccination communication messages to increase vaccination coverage.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2023 |
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Erschienen: |
2023 |
Enthalten in: |
Zur Gesamtaufnahme - volume:20 |
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Enthalten in: |
International journal of environmental research and public health - 20(2023), 23 vom: 30. Nov. |
Sprache: |
Englisch |
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Beteiligte Personen: |
Makonokaya, Lucky [VerfasserIn] |
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Links: |
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Themen: |
AZD1222 |
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Anmerkungen: |
Date Revised 08.12.2023 published: Electronic Citation Status In-Process |
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doi: |
10.3390/ijerph20237123 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM365544337 |
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245 | 1 | 0 | |a Safety of Janssen Ad26.COV.S and Astra Zeneca AZD1222 COVID-19 Vaccines among Mobile Phone Users in Malawi |b Findings from a National Mobile-Based Syndromic Surveillance Survey, July 2021 to December 2021 |
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520 | |a The safety profiles of the Ad26.COV2.S and AZD1222 COVID-19 vaccines have not been described in the general population in Malawi. We present self-reported adverse events (AE) following the receipt of these vaccines in Malawi as part of a national syndromic surveillance survey. We conducted phone-based syndromic surveillance surveys among adults (≥18 years) with verbal consent. We used secure tablets through random digit dialing to select mobile phone numbers and collected data electronically. Survey questions included whether the respondent had received the COVID-19 vaccines, whether they had experienced any AE following vaccination, and the severity of the AE. We used multivariable analysis to identify factors associated with self-reported AE post-COVID-19 vaccination. A total of 11,924 (36.0%) out of 33,150 respondents reported receiving at least one dose of either Ad26.COV2.S or AZD1222 between July-December 2021; of those, 65.1% were female. About 49.2% of the vaccine recipients reported at least one AE, 90.6% of which were mild, and 2.6% were severe. Higher education level and concern about the safety of COVID-19 vaccines were associated with AE self-report (Adjusted Odds Ratio [AOR] 2.63 [95% CI 1.96-3.53] and 1.44, [95% CI 1.30-1.61], respectively), while male gender and older age were associated with reduced likelihood of AE self-report (AORs 0.81, [95% CI 0.75-0.88], 0.62 [95% CI 0.50-0.77], respectively). Ad26.COV2.S and AZD1222 vaccines are well-tolerated, with primarily mild and few severe AE among adults living in Malawi. Self-reporting of AE following COVID-19 vaccination is associated with gender, age, education, and concern about the safety of the vaccines. Recognizing these associations is key when designing and implementing COVID-19 vaccination communication messages to increase vaccination coverage | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a AZD1222 | |
650 | 4 | |a Ad26.COV2.S | |
650 | 4 | |a COVID-19 | |
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700 | 1 | |a Woelk, Godfrey B |e verfasserin |4 aut | |
700 | 1 | |a Chauma-Mwale, Annie |e verfasserin |4 aut | |
700 | 1 | |a Kalitera, Louiser Upile |e verfasserin |4 aut | |
700 | 1 | |a Nkhoma, Harrid |e verfasserin |4 aut | |
700 | 1 | |a Zimba, Suzgo |e verfasserin |4 aut | |
700 | 1 | |a Chamanga, Rachel |e verfasserin |4 aut | |
700 | 1 | |a Golowa, Cathy |e verfasserin |4 aut | |
700 | 1 | |a Machekano, Rhoderick |e verfasserin |4 aut | |
700 | 1 | |a Maphosa, Thulani |e verfasserin |4 aut | |
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