Figure 2From: Neutralizing antibody response in the patients with hand, foot and mouth disease to enterovirus 71 and its clinical implicationsNeutralizing antibody titers in HFMD patients by microneutralization assay against EV71. A. HFMD patients were classified by dates of onset of illness. B. Serum samples of HFMD patients taken one day after symptoms of illness appeared had significantly higher antibody titers than control subjects (p < 0.05).Back to article page