Survival of influenza AH04 on a representative range of household surfaces.

*P = porous; NP = non-porous; M = metallic; NM = non-metallic.− no fluorescence seen; +/− some fluorescence seen (10% cells infected.†Plastic control = virus applied directly to the tissue culture dish surface.*P = 多孔的（porous）；NP = 非多孔的（non-porous）；M = 金属的（metallic）；NM = 非金属的（non-metallic）。−：未观察到荧光；+/−：观察到部分荧光（10%的细胞被感染）。† 塑料对照组：将病毒直接施加于组织培养皿表面。