Figure 1. Anti-HSV immunoglobulins in serum and saliva. Recurrent labial herpes (RLH). (a) Anti-HSV IgG levels in sera were significantly higher (p = 0.0005; Mann-Whitney U-test) in HSV-seropositive subjects with recurrent labial herpes than in asymptomatic seropositive subjects. (b) Anti-HSV IgA levels in saliva were low in all groups, whereas anti-HSV IgG levels were clearly detectable in both HSV-seropositive groups. There was a clear difference (p = 0.042; Mann-Whitney U-test) in the levels of salivary anti-HSV IgG between subjects with and those without recurrent labial herpes (endpoint titer ± SE).
