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

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:20

Enthalten in:

International journal of environmental research and public health - 20(2023), 23 vom: 30. Nov.

Sprache:

Englisch

Beteiligte Personen:

Makonokaya, Lucky [VerfasserIn]
Kapanda, Lester [VerfasserIn]
Woelk, Godfrey B [VerfasserIn]
Chauma-Mwale, Annie [VerfasserIn]
Kalitera, Louiser Upile [VerfasserIn]
Nkhoma, Harrid [VerfasserIn]
Zimba, Suzgo [VerfasserIn]
Chamanga, Rachel [VerfasserIn]
Golowa, Cathy [VerfasserIn]
Machekano, Rhoderick [VerfasserIn]
Maphosa, Thulani [VerfasserIn]

Links:

Volltext

Themen:

AZD1222
Ad26.COV2.S
Adverse events
COVID-19
Journal Article
Malawi
Mobile phone-based syndromic surveillance survey
SARS-CoV-2
Self-report
Vaccination

Anmerkungen:

Date Revised 08.12.2023

published: Electronic

Citation Status In-Process

doi:

10.3390/ijerph20237123

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM365544337