THE INCUBATION PERIOD OF CORONAVIRUS DISEASE 2019 (COVID-19) IN PETALING DISTRICT, MALAYSIA

  • Ainul Nadziha Mohd Hanafiah Institute for Health Systems Research, National Institutes of Health, Ministry of Health
  • Lee Soo Cheng Petaling District Health Office, Selangor, Ministry of Health
  • Lim Kuang Kuay Institute for Public Health, National Institutes of Health, Ministry of Health
  • Waramlah Ramlan Ministry of Health
  • Diana Raj Ministry of Health
  • Shiehafiel Fieqri Hussin Ministry of Health
  • Ridwan Sanaudi Institute for Public Health, National Institutes of Health, Ministry of Health
  • Roslinda Abu Sapian Institute for Public Health, National Institutes of Health, Ministry of Health
  • Nurul Syarbani Eliana Musa Institute for Public Health, National Institutes of Health, Ministry of Health
  • Mohamed Paid Yusoff Petaling District Health Office, Selangor, Ministry of Health
Keywords: incubation period, COVID-19, coronavirus, Petaling district

Abstract

The outbreak of COVID-19 has affected the world with over two million cases globally.  Malaysia has witnessed over 5,000 with almost 100 deaths as of 22 April 2020. Knowledge on the incubation period of COVID-19 is scarce due to the novelty of the virus. The aim of this study was to determine the incubation period of COVID-19 infection in the district of Petaling in Malaysia. A cross-sectional study was conducted using secondary data from the Petaling District Health Office. We analysed data of laboratory-confirmed COVID-19 cases notified to the Petaling District Health Office between 3 February 2020 and 13 April 2020. Our study included 219 cases. The median incubation period of COVID-19 among the cases was five days (interquartile range 3.0-8.0). Four main clusters were identified, with significant difference found between two of the clusters. Cluster A has a shorter incubation period 3.5 (3.0-6.8) compared to cluster B as most of the confirmed cases knew the source of infection. COVID-19 incubation period in Petaling, Malaysia fits within the range estimated by the World Health Organization. Based on the upper value of the incubation period interquartile range in our study, the length of quarantine and period of contact tracing should be at least 8 days. This finding is in accordance with our current practice to control the spread of COVID-19

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Published
2021-04-24
How to Cite
Mohd Hanafiah, A. N., Cheng , L. S., Kuay , L. K., Ramlan, W., Raj, D., Hussin, S. F., Sanaudi, R., Abu Sapian, R., Musa, N. S. E., & Yusoff, M. P. (2021). THE INCUBATION PERIOD OF CORONAVIRUS DISEASE 2019 (COVID-19) IN PETALING DISTRICT, MALAYSIA. Malaysian Journal of Public Health Medicine, 21(1), 127-133. https://doi.org/10.37268/mjphm/vol.21/no.1/art.711