Figure 6
Virus titer detected in the supernatant of influenza virus infected HLMVE cells. Virus titer of the (A) A/HK/54/98 (H1N1) and (B) A/HK/483/97 (H5N1) was determined after apical infection and basolateral infection of the HLMVE cells at 1 h and 8 h post infection. Aa = apical release after apical infection, Ab = basolateral release after apical infection, Ba = apical release after basolateral infection, Bb = basolateral release after basolateral infection. Single and double asterisk indicates statistically significant difference with p < 0.05 and p < 0.01 respectively. Dotted line represents the lowest detection limit of the TCID50 assay.