Figure 2.

Log reduction of feline infectious peritonitis virus (FIPV) spotted on contaminated surfaces and exposed to blue LED (405 nm), far-UVC (222 nm) and dual (405 nm + 222 nm) lights. FIPV was either dried onto plastic (A), paper (B), or metal (C) discs in the presence or absence of saliva or left wet prior to being exposed to light for 30 min (plastic and paper) or 8 min (metal). All exposures were done at 25 cm distance. Data is displayed as mean log reduction in titre ± SD. Statistically significant differences are indicated by different letters (a to f), (p < 0.05). * No CPE observed after large volume culture. TCID₅₀ = tissue culture infectious dose, 50%.