1 INTRODUCTION
Diseases and bacteria or viruses which cause them often have different names. The ”human immunodeficiency virus,” HIV, for example, induces the ”acquired immunodeficiency disease,” AIDS. The virus that triggers the current outbreak is called coronavirus 2, a serious acute respiratory syndrome shortened to SARS-CoV-2. The illness, shortened to COVID-19, is called coronavirus disease. The World Health Organization, and the International Committee on Virus Taxonomy (https://talk.ictvonline.org/), gave these names. In public speaking, the WHO also refers to the virus as ”the virus accountable for COVID-19,” or ”the COVID-19 virus.” The outbreak was first reported in Wuhan city, China. Wuhan is the capital of the Hubei Province and has a population of around 11 million. Chinese authorities reported a cluster of related pneumonia cases in the town on 29 December 2019. A novel coronavirus which was later called SARS-CoV-2 soon confirmed to cause these cases (https://www.who.int/china/news/detail/09-01-2020-who-statement-regarding-cluster-of-pneumonia-cases-in-wuhan-china,2020; https://www.who.int/emergencies/diseases/novel-coronavirus-2019/situation-reports, 2020; Ren, Wang, & Wu 2020; Drosten, Günther, & Preiser, 2003; Chen, Liu, & Guo, 2020; Zhu, Zhang, Wang, 2020). The first COVID-19 cases outside of China were found in Thailand on January 13, and in Japan on January 16 (https://www.cdc.gov/coronavirus/2019‐nCoV/summary.html, 2020). The Chinese Government put the city of Wuhan and other cities in the area on lockdown on January 23rd. COVID-19 has since spread to several more countries-cases have been recorded in all regions of the world. It grew into a global pandemic by March, and was announced by the WHO as such (Yoo, 2020; https://www.who.int/emergencies/diseases/novel-coronavirus-2019/events-as-they-happen, 2020; Hui, I Azhar, Madani, 2020). While people sometimes refer to the virus that causes COVID-19 as ”the coronavirus,” several different coronaviruses do exist. The word refers to a group of viruses specific to humans: coronaviruses cause about 30 percent of all cold cases (Mesel-Lemoine, Millet, Vidalain, 2020). Corona is Latin for ”crown” – this group of viruses is named because, under an electron microscope, its surface looks like a crown. As the outbreak of the novel SARS‐CoV‐2 is increasingly spreading in China and beyond, threatening to become a global pandemic, epidemiological data need to be interpreted in such a way that the model of statistical data analysis and visualization can increase the understanding of situation among the mass population in the coming days (Muthusami, Bharathi, Saritha, 2020).