“…Many publications have addressed the new coronavirus in terms of its clinical characteristics, immunological studies, and the international spread of COVID-19 (El Zowalaty and Järhult, 2020;Wu et al, 2020;Chang et al, 2020;Velavan and Meyer, 2020;Ahmed et al, 2020;Al-rabiaah et al, 2020;Chen et al, 2020;Gao et al, 2020;Lai et al, 2020a;Lai et al, 2020b;Level et al, 2019;Mallapaty, 2020;Xu et al, 2020;Zhang et al, 2020. A few studies investigating its spread have produced risk maps either for COVID-19 during an outbreak or for similar coronavirus respiratory syndromes (Wu et al, 2020;Chen et al, 2018), or even for risk assessments of other global viral diseases (Dom et al, 2016;Li et al, 2017;Sabir et al, 2015;Saito et al, 2015;Sarfraz et al, 2014;Tu et al, 2014. Given the clinical severity of COVID-19 infection, the extent of the outbreak, and public concern, it is important to establish accurate epidemiological limitations, thus solid information is essential for inputs into models. In general, there are too many factors on each pandemic disease, including environmental, agro-ecological, and meteorological variables.…”