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dc.titleSARS-CoV-2 in migrant worker dormitories: Geospatial epidemiology supporting outbreak management
dc.contributor.authorGorny, Alexander W
dc.contributor.authorBagdasarian, Natasha
dc.contributor.authorKoh, Azriel Hong Kiat
dc.contributor.authorLim, Yong Chin
dc.contributor.authorOng, Jacqueline Soo May
dc.contributor.authorNg, Bryan Su Wei
dc.contributor.authorHooi, Benjamin
dc.contributor.authorTam, Wai Jia
dc.contributor.authorKagda, Fareed Husain
dc.contributor.authorChua, Gerald Seng Wee
dc.contributor.authorYong, Michael
dc.contributor.authorTeoh, Hock Luen
dc.contributor.authorCook, Alex Richard
dc.contributor.authorSethi, S.K.
dc.contributor.authorYoung, Dan Yock
dc.contributor.authorLoh, Thomas
dc.contributor.authorLim, Aymeric Yu Tang
dc.contributor.authorAw, Andrew Kian-Li
dc.contributor.authorMak, Kenneth Seck Wai
dc.contributor.authorFisher, Dale
dc.identifier.citationGorny, Alexander W, Bagdasarian, Natasha, Koh, Azriel Hong Kiat, Lim, Yong Chin, Ong, Jacqueline Soo May, Ng, Bryan Su Wei, Hooi, Benjamin, Tam, Wai Jia, Kagda, Fareed Husain, Chua, Gerald Seng Wee, Yong, Michael, Teoh, Hock Luen, Cook, Alex Richard, Sethi, S.K., Young, Dan Yock, Loh, Thomas, Lim, Aymeric Yu Tang, Aw, Andrew Kian-Li, Mak, Kenneth Seck Wai, Fisher, Dale (2021-02-01). SARS-CoV-2 in migrant worker dormitories: Geospatial epidemiology supporting outbreak management. INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES 103 : 389-394. ScholarBank@NUS Repository.
dc.description.abstractBackground: Migrant worker dormitories—residential complexes where 10–24 workers share living spaces—account for the majority of cases of SARS-CoV-2 infection in Singapore. To prevent overspill of transmission to the wider population, starting in early April 2020, residents were confined to their dormitories while measures were put in place to arrest the spread of infection. This descriptive study presents epidemiological data for a population of more than 60 000 migrant workers living in two barracks-style and four apartment-style dormitories located in western Singapore from April 3 to June 10, 2020. Methods: Our report draws from data obtained over the first 50 days of outbreak management in order to describe SARS-CoV-2 transmission in high-density housing environments. Cumulative counts of SARS-CoV-2 cases and numbers of housing units affected were analyzed to report the harmonic means of harmonic means of doubling times and their 95% confidence intervals (CI). Results: Multiple transmission peaks were identified involving at least 5467 cases of SARS-CoV-2 infection across six dormitories. Our geospatial heat maps gave an early indication of outbreak severity in affected buildings. We found that the number of cases of SARS-CoV-2 infection doubled every 1.56 days (95% CI 1.29–1.96) in barracks-style buildings. The corresponding doubling time for apartment-style buildings was 2.65 days (95% CI 2.01–3.87). Conclusions: Geospatial epidemiology was useful in shaping outbreak management strategies in dormitories. Our results indicate that building design plays an integral role in transmission and should be considered in the prevention of future outbreaks.
dc.publisherELSEVIER SCI LTD
dc.subjectScience & Technology
dc.subjectLife Sciences & Biomedicine
dc.subjectInfectious Diseases
dc.subjectOutbreak management
dc.subjectMigrant worker
dc.subjectHigh-density housing
dc.subjectGeospatial epidemiology
dc.subjectDoubling time
dc.contributor.departmentDEPT OF ANAESTHESIA
dc.contributor.departmentDEPT OF MEDICINE
dc.contributor.departmentDEPT OF ORTHOPAEDIC SURGERY
dc.contributor.departmentDEPT OF PAEDIATRICS
dc.contributor.departmentDEPT OF PATHOLOGY
dc.contributor.departmentSAW SWEE HOCK SCHOOL OF PUBLIC HEALTH
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