Abstract
Introduction The COVID-19 pandemic has resulted in more than 35 million confirmed cases worldwide. Currently, there is no specific treatment for the disease or available vaccine to reduce the spread of COVID-19. As such, countries rely on a range of public health interventions to assist in halting the spread of transmission. Caribbean countries have also adopted many public health interventions. In this paper, we use mathematical modelling to demonstrate the impact of public health interventions on the progression of COVID-19 in order to provide timely decision support. Methods A cohort Markov model, based on the concept of the SEIR model, was built to reflect the characteristics of the COVID-19 virus. Five possible public health interventions in the first wave and a projection of current second wave were simulated using the constructed model. Results The model results indicate that the strictest combined interventions of complete border closure and lockdown were the most effective with the number of deaths less than ten in the first wave. For the current second wave, it will take around 30 days for the pandemic to pass its peak after implementing the wearing of face masks policy. Conclusions This paper shows the impact of common public health interventions on the COVID-19 pandemic, using Trinidad and Tobago as an example. Such impacts may be useful in reducing delays in decision-making and improving compliance by populations. However, given the limitations associated with mathematical models, decision-making should be guided by economic assessments, infectious disease and public health expertise.
Highlights
The COVID-19 pandemic has resulted in more than 35 million confirmed cases worldwide
This paper shows the impact of common public health interventions on the COVID-19 pandemic, using Trinidad and Tobago as an example
Given the limitations associated with mathematical models, decision-making should be guided by economic assessments, infectious disease and public health expertise
Summary
The COVID-19 pandemic has resulted in more than 35 million confirmed cases worldwide. There is no specific treatment for the disease or available vaccine to reduce the spread of COVID-19. Countries rely on a range of public health interventions to assist in halting the spread of transmission. Caribbean countries have adopted many public health interventions. We use mathematical modelling to demonstrate the impact of public health interventions on the progression of COVID-19 in order to provide timely decision support
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