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COVID-19 Antibody Surveillance Among Healthcare Workers in A Non-COVID designated Cardiology Centre
  • +11
  • HWEI SUNG LING,
  • Ing Xiang Pang,
  • Alan Yean Yip Fong,
  • Tiong Kiam Ong,
  • Ning Zhang Khiew,
  • Yee Ling Cham,
  • Asri Said,
  • Yen Yee Oon,
  • Keng Tat Koh,
  • Chen Ting Tan,
  • Kian Hui Ho,
  • Francis Eng Pbeng Shu,
  • Chandan Deepak Bhavnani,
  • Lean Seng Chen
HWEI SUNG LING
Universiti Malaysia Sarawak Faculty of Medicine and Health Sciences
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Ing Xiang Pang
Sarawak Heart Centre
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Alan Yean Yip Fong
Clinical Research Centre Sarawak
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Tiong Kiam Ong
Sarawak Heart Centre
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Ning Zhang Khiew
Sarawak Heart Centre
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Yee Ling Cham
Sarawak Heart Centre
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Asri Said
UNIMAS
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Yen Yee Oon
Sarawak Heart Centre
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Keng Tat Koh
Sarawak Heart Centre
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Chen Ting Tan
Sarawak Heart Centre
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Kian Hui Ho
Sarawak Heart Centre
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Francis Eng Pbeng Shu
Sarawak Heart Centre
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Chandan Deepak Bhavnani
Sarawak Heart Centre
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Lean Seng Chen
Sarawak Heart Centre
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Abstract

BACKGROUND: Reports on healthcare worker antibody response to COVID-19 infection are scarce. We aim to determine the COVID-19 antibody prevalence among healthcare workers in a cardiology centre and the relationship between case definition criteria with the COVID-19 antibody result. METHODS: Convenience sampling was applied. Healthcare workers in Sarawak Heart Centre (SHC) cardiology, radiology, and emergency unit were recruited. A survey form on clinical symptoms and close contact history was distributed. HEALGEN COVID-19 IgG/IgM rapid test was performed using serum/ whole blood specimen. Staff with positive COVID-19 antibody results were referred to the infectious disease specialist for assessment. RESULTS: A total of 310 staff were screened. 220(71%) were female, and the mean age was 36±7.7 years old. 46(14.8%) staff reported having clinical symptoms at some stage from the end of January 2020 to the time of this surveillance. Number of staff who had a history of overseas travel, close contact with confirmed COVID-19 patients, or had visited places with identified COVID-19 clusters were 4(1.3%), 24(7.7%) and 24(7.7%) respectively. There were 14 staff (4.5%) with positive tests positive, 2 for IgM, and 12 for IgG. All those with positive antibody were subsequently tested negative with RT-PCR test. The history of having clinical symptoms and exposure to COVID-19 cluster area were independently associated with a positive IgG result. CONCLUSION: The application of COVID-19 antibody serology rapid tests could determine true exposure of staff to the infection and allow us to reassess existing measures of infection control within the hospital.