Table 1.

Analysis of category styles of transmission coronavirus.

Transmission Style	Hazard	Places	Data Published	Country	Finding	Reference
Environment to human	High	Plastic, stainless steel, copper and cardboard	17 March 2020	USA	SARS-CoV-2	[51,56]
Environment to human	High	Hospital rooms	29 May 2020	Singapore	SARS-CoV-2	[52,58]
Environment to human	High	Air and surface	26 June 2020	Italy	SARS-CoV-2	[53]
Environment to human	High	Surface contamination	2016	London	SARS-CoV and MERS-CoV	[54]
Environment to human	High	Air, surface	7 May 2020	China	COVID-19	[55]
Environment to human	High	Water	28 April 2020	Italy	SARS-CoV-2	[57]
Environment to human	High	Toilet	13 August 2020	China	SARS-CoV-2	[59]
Human exchange	High	Contacts	24 January 2020	China	SARS-CoV-2	[61]
Human exchange	High	Ocular surface	22 April 2020	Australia	SARS-CoV-2	[63]
Human exchange	High	Dental clinics	19 February 2020	China	SARS-CoV-2	[66]
Animal to human	Medium	Bats	2020	USA	SARS-CoV-2	[73,74]
Animal to human	Medium	Sold avian, swine, porcine, bovine, canine, seafood, frogs, camels	2020	China	SARS-CoV-2	[71]
Human to others	Low	Wastewater surveillance	18 April 2020	Australia	SARS-CoV-2	[76,78]