when the staff goes to work and returns to home.Įach staff carries an attribute that describes whether they are susceptible to COVID-19 or infected. The model only simulates the transition of the state of the staff in discrete time, i.e. The state of working in the laboratory is further divided into sub-states, representing each work shift, for rosters with more than 1 shift per day. In this simple model, each staff can only assume one of the two states, namely staying at home or working in the laboratory. The entities in the simulation are laboratory staff assigned to work in a particular shift. From the results of this simulation, several recommendations are developed to further assist laboratories in planning their workplace in order to minimize the risk of transmission of SARS-Cov-2 infection.Ī simulation model based on discrete event simulation approach was constructed to compare the transmission of SARS-CoV-2 among staff under various roster arrangements and workplace measures. Therefore, this simulation study was conducted to explore the relative impact of staff rostering, split team arrangement, social distancing and use of PPE on the potential risk of transmission within the laboratory environment. In part, this may be due to uncertainty surrounding the impact of different measures in reducing the risk of viral transmission. The laboratories also found it challenging to manage staff rostering, split team arrangement and maintain workplace social distancing (physical distancing). Ī global survey by the Taskforce has then revealed that clinical laboratories have used PPE variably. These included the use of personal protective equipment (PPE), temperature and symptom monitoring, split team work arrangements and workplace social distancing. The Task Force has already published biosafety recommendations, which outlined the steps that laboratories operating at biosafety level 1 and level 2 shall or may use to lower the risk of workplace transmission of the virus. The International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) has recently formed a Taskforce on COVID-19 to provide guidance to laboratory practitioners in managing this challenge. The coronavirus disease 2019 (COVID-19), caused by a novel betacoronavirus called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is a highly infectious outbreak that has been declared a pandemic by the World health Organization (WHO).
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