| heterogeneity in levels of serum neutralizing antibodies against viral hemorrhagic septicemia virus genotype ivb among fish species in lake st. clair, michigan, usa. | the presence of neutralizing antibodies against viral hemorrhagic septicemia virus (vhsv-ivb) was investigated in sera of 13 fish species collected from lake st. clair, michigan, usa, a vhsv-endemic water body. we tested 297 sera collected may 2004-june of 2010, using a complement-dependent 50% plaque neutralization test (50% pnt). neutralizing antibodies were detected in 23% (67/297) of the samples. the highest overall antibody prevalence (85%, 34/40) and mean positive antibody titer (12,113 ± ... | 2012 | 22493115 |