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. 2013 Aug 16;8(8):e71534. doi: 10.1371/journal.pone.0071534

Figure 4. Reduced plaque formation in the presence of antibodies of mice immunized with H9N2.

Figure 4

After being inoculated with H9N2, H12N5, H5N1, or H3N2, MDCK cells were cultured in the presence of antibodies in the serum (1∶200) (A), TW (1∶5) (B), or NW (1∶5) (C) samples of mice immunized intranasally (i.n.) or subcutaneously (s.c.). Numbers of plaques were counted and plaque reduction was calculated relative to the number of plaques formed in the presence of the samples of mice given PBS intranasally or subcutaneously for i.n. or s.c. immunized mice, respectively (D).