Table 2. Persistence of viral pathogens on common dry inanimate surfaces (e.g., plastics, stainless steel, or flooring).

Viral Pathogens	Initial Inoculation	Period of Detectability (Source)	Associated Disease
Influenza	Approximately 1 × 104 TCID50*	2 days [26]	Influenza
Norovirus	Approximately 2 × 105 TCID50*	7 days [27]	Gastroenteritis
Rhinovirus	Approximately 1 × 104 TCID50*	4 days [28]	Common cold
SARS-CoV-2	Approximately 105 TCID50*	3 days [29]	COVID-19

*TCID₅₀, 50% tissue-culture infectious dose.

COVID-19, Coronavirus Disease 2019; SARS-CoV-2, Severe Acute Respiratory Syndrome Coronavirus 2.