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).