igg positive igm negativemycoplasma igg positive igm negativetoxoplasma igg positive igm negativeebv igg positive igm negativecmv igg positive igm negativevzv igg positive igm negativehsv 1 iggdifference between dengue igg and igmtorch test igg positive igm negativeebv vca igg positive igm negativeh pylori igg positive igm negativehsv 1 igg positive