A Mathematical Approach on Representation of Competitions: Competition Cluster Hypergraphs

Table 1

Top six COVID-19-affected countries (collected from Wikipedia dated 15 March 2020).

Country	Total affected	Date of the first case	Affected from
China	81,218	31 December 2019
Italy	69,176	31 January 2020	China
USA	54,935	19 January 2020	China
Spain	42,058	31 January 2020	China
Germany	33,593	25 February 2020	Italy
Iran	24,811	19 February 2020	China