Table 1. Virucidal efficacy of the tested solutions toward infectious bronchitis virus (IBV) in aqueous phase containing 5% fetal bovine serum.

Tested solutions	Viral titer [log10 (PFU/ml)] at different contact times
	IBV control	0 sec	30 sec
FdCa(OH)2a	6.012 ± 0.03	6.005 ± 0.03	<1.398 ± 0
NaClO-1,000b		5.423 ± 0.03	<1.398 ± 0
NaClO-500c		5.394 ± 0.03	<1.398 ± 0
Mix-500d		5.466 ± 0.07	<1.398 ± 0
QAC-500e		5.932 ± 0.02	<1.398 ± 0

^a Food additive grade calcium hydroxide at 0.17% solution, ^b sodium hypochlorite solution at 1,000 ppm of total chlorine, ^c sodium hypochlorite solution at 500 ppm of total chlorine, ^d sodium hypochlorite solution at 500 ppm of total chlorine in 0.17% FdCa(OH)₂, ^e quaternary ammonium compound diluted 500-fold in redistilled water. Figures are shown as mean ± SE from replicated 3 times. Viral titer <1.398 log₁₀ PFU (plaque forming units)/ml indicates the virus was inactivated to undetectable level.