In 8 patients who had Sabin-Feldman dye test titers >64 and for whom the infecting strain type was known, the peptides correctly distinguished type II from non-type II infections.
Although it was previously suggested that the complex interaction of syphilis and HIV infection may cause non-treponemal tests such as VDRL or RPR serology to become falsely positive or negative, in general it has been suggested that non-treponemal test titers may be higher among HIV-positive patients than among HIV-negative patients [15 23].
*Boxes indicate virus neutralization test titers for homologous serum; boldface indicates results for Aydin/04 and Burdur/05.
In the subclass-based ANA test, titers cannot be accurately compared between subclasses, as the second antibodies are different.
The microneutralization assay detected CCHFV in 47/48 samples tested; titers ranged from 10 to 200 (mean 105).
*BDV, border disease virus; CSFV, classical swine fever virus; boxes indicate virus neutralization test titers for homologous serum; boldface indicates results for Aydin/04 and Burdur/05.
VDRL test titers should decline at least 4-fold within 3 6 months after therapy for primary or secondary syphilis, and within 12 24 months for latent syphilis.
Serum of the infected patient showed 50% plaque-reduction neutralization test titers of 256 and 512 on postinjury days 11 and 28, respectively.
Although not definitive for identifying infecting leptospiral serovars, microscopic agglutination test titers suggested that the most frequently reacting serogroups in São Paulo are Icterohemorrhagiae (72%) and Autumnalis (14%).
We also tested whether the IgG-Dye test titers and IgM-ELISA titers of the index case-patients were different across the 3 family groups by using the Kruskal-Wallis test.
With regard to WNV antibodies, the ELISA detected 44 positive samples and 1 doubtful sample, of which 29 were confirmed as positive by virus-neutralization test (virus-neutralization test titers ranging from 10 to 640; geometric mean titer = 20).
