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The first COVID-19 case was detected in Malaysia on 25th January 2020. Given the serious situation of COVID-19, Malaysia Government implemented the Movement Control Order (MCO) in the same year by restricting citizen movement. The COVID-19 outbreak in Malaysia under MCO 1.0 is successfully controlled as only a hundred and below daily infected cases were reported. However, Malaysia's nightmare began after the government lightened the movement control, where more than 10,000 infected cases were reported daily. When the people realise that they cannot eliminate the COVID-19 pandemic, they should prevent another outbreak with their responsibilities, such as self-isolation when in close contact with a confirmed infection. Therefore, the SafeTravel mobile application is proposed to allow users to record their travel data in the system when performing the cross-state activity. In this application, the location, purpose, start date and end travelling data are provided by users and stored in the database using blockchain technology. Besides that, the users can update their daily health status in the mobile application to be aware of the COVID-19 symptoms and always monitor their body status.

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