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

How to Cite

1.
Khairul Amin KHA, Bujang NNA, Abas SA, Zulkifli NI, Amir SA, Mohd Shah S, Ganesan V, Aziz NF, Jalaluddin MA, Abd Wahil MS, Muhamad Hasani MH, Mohd Ali NK, Yusof MP. Epidemiology of COVID-19 cases and vaccination coverage in Seremban District, Malaysia, 2021. Western Pac Surveill Response J [Internet]. 2023 May 24 [cited 2026 Mar. 22];14(2). Available from: https://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/985

Issue

Vol. 14 No. 2 (2023): April ‒ June

Section

Field Investigation Report

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