Effectiveness of Disease Control Measures on the Transmission Risk of SAR-Cov-2 among High-Risk Contacts: a Case Study in Phuket, Thailand

Authors

  • Tanit Sermkaew Office of the Permanent Secretary Ministry of Public Health
  • Nichapat Sangkaew Faculty of Hospitality and Tourism Prince of Songkla University, Thailand
  • Chayanon Phucharoen Faculty of Hospitality and Tourism Prince of Songkla University, Thailand

Keywords:

COVID-19, SAR-CoV-2, disease prevention measures, high risk contacts

Abstract

During the first wave of COVID-19 (April- May 2020), Phuket had the second-largest accumulated number of COVID-19 confirmed cases nationwide. Two major stringent disease control measures, including complete quarantine of all high-risk contact (HRCs) in stated provide facilities (LQ) and district lockdown, were implemented. This paper analyzes the effectiveness of those two policies by employing the Probit model to assess the infection probability of high-risk contact during policy implementation. The results indicated that a complete quarantine of all high-risk contacts in LQ significantly alleviated their infection probability as the household secondary attack rate among HRCs statistically diminished after this measure had been implemented. We found no evidence that the implementation of district lockdown could statistically reduce the infection probability of all HRCs in our samples. However, an increase in household transmission’s coefficient among high-risk contact was found instead when this policy was annexed. Hence, the district lockdown policy should be implemented with full caution.

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Published

2021-08-31

How to Cite

เสริมแก้ว ธ., สังข์แก้ว ณ., & ภู่เจริญ ช. (2021). Effectiveness of Disease Control Measures on the Transmission Risk of SAR-Cov-2 among High-Risk Contacts: a Case Study in Phuket, Thailand. Journal of Health Science of Thailand, 30(4), 668–678. Retrieved from https://thaidj.org/index.php/JHS/article/view/10608

Issue

Section

Original Article (นิพนธ์ต้นฉบับ)