Coronavirus disease 2019 (COVID-19) is a novel respiratory infectious disease and has been spreading globally. As of August 2020, about 30 million confirmed cases of COVID-19 have been reported worldwide, and the cumulative total number of deaths is about 1 million. Currently, the most common transmission routes include droplet and aerosol transmission through the respiratory tract, close contact transmission, fecal-oral transmission. China is the first country hit by a COVID-19 outbreak and facing challenges of grappling with the scope and nature of both physical and mental health impacts.

China had implemented stringent measures including quarantine, social distancing and isolation of infected cases to slow down COVID-19 transmission. All provinces of Chinese mainland launched the highest level of emergency public health response by the end of January 2020. Selfprotection measures, such as face masks, hands wash, indoor ventilation, respiratory hygiene habits, and social distancing were advocated and disseminated through the official public media, social media and communitybased approaches. How individuals respond to these advices on how to prevent COVID-19 transmission is critical, as currently there lack effective antiviral drugs and vaccine

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