Epidemiology of COVID-19 cases and vaccination coverage in Seremban District, Malaysia, 2021

Authors

  • Khairul Hafidz Alkhair Khairul Amin Seremban District Health Office, Ministry of Health Malaysia, Seremban, Negeri Sembilan, Malaysia; Department of Community Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
  • Nur Nadiatul Asyikin Bujang Seremban District Health Office, Ministry of Health Malaysia, Seremban, Negeri Sembilan, Malaysia; Department of Social and Preventive Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
  • Siti Aishah Abas Seremban District Health Office, Ministry of Health Malaysia, Seremban, Negeri Sembilan, Malaysia; Department of Public Health Medicine, Faculty of Medicine, Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia
  • Nadiatul Ima Zulkifli Seremban District Health Office, Ministry of Health Malaysia, Seremban, Negeri Sembilan, Malaysia
  • Syuaib Aiman Amir Seremban District Health Office, Ministry of Health Malaysia, Seremban, Negeri Sembilan, Malaysia
  • Sharina Mohd Shah Seremban District Health Office, Ministry of Health Malaysia, Seremban, Negeri Sembilan, Malaysia
  • Veshny Ganesan Seremban District Health Office, Ministry of Health Malaysia, Seremban, Negeri Sembilan, Malaysia
  • Nurul Fazilah Aziz Seremban District Health Office, Ministry of Health Malaysia, Seremban, Negeri Sembilan, Malaysia
  • Muhammad Adli Jalaluddin Seremban District Health Office, Ministry of Health Malaysia, Seremban, Negeri Sembilan, Malaysia
  • Mohd Shahrol Abd Wahil Disease Control Division, Ministry of Health, Putrajaya, Malaysia
  • Muhamad Hazizi Muhamad Hasani Seremban District Health Office, Ministry of Health Malaysia, Seremban, Negeri Sembilan, Malaysia
  • Noor Khalili Mohd Ali Seremban District Health Office, Ministry of Health Malaysia, Seremban, Negeri Sembilan, Malaysia
  • Mohamad Paid Yusof Seremban District Health Office, Ministry of Health Malaysia, Seremban, Negeri Sembilan, Malaysia

DOI:

https://doi.org/10.5365/wpsar.2023.14.2.985

Keywords:

COVID-19, outbreaks, vaccination coverage, disease severity, hospitalization, mortality, Malaysia

Abstract

Objective: Malaysia’s first case of coronavirus disease (COVID-19) was reported in January 2020, with the first case in the state of Negeri Sembilan diagnosed on 17 February 2020. The National COVID-19 Immunisation Programme commenced in early March 2021 in Negeri Sembilan. This study describes the COVID-19 cases and vaccination coverage in Seremban District, Negeri Sembilan, during 2021.

Methods: The demographic and clinical characteristics of COVID-19 cases and the district’s vaccination coverage were described. Vaccination coverage was plotted against COVID-19 cases on the epidemic curve. The chi-square test was used to examine the differences between the vaccination status of COVID-19 cases and severity category, hospitalization status and mortality.

Results: In Seremban District, there were 65 879 confirmed cases of COVID-19 in 2021. The data revealed that the
21–30-year age group had the highest proportion of cases (16 365; 24.8%), the majority of cases were male (58.3%), and most cases were from the sub-district of Ampangan (23.1%). The majority of cases were Malaysian. Over half (53.5%) were symptomatic, with fever (29.8%) and cough (22.8%) being the most frequently reported symptoms. COVID-19 vaccination status was significantly associated with severity category, hospitalization and mortality (P < 0.001 for all categories).

Discussion: This is the first study to describe two-dose vaccination coverage and the trend in COVID-19 cases in Seremban District. It was observed that COVID-19 cases had been reduced following more than 60.0% vaccination coverage.

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Published

24-05-2023

Issue

Section

Field Investigation Report

How to Cite

1.
Khairul Amin KHA, Bujang NNA, Abas SA, Zulkifli NI, Amir SA, Mohd Shah S, et al. Epidemiology of COVID-19 cases and vaccination coverage in Seremban District, Malaysia, 2021. Western Pac Surveill Response J [Internet]. 2023 May 24 [cited 2026 May 28];14(2). Available from: https://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/985