Determining specific immune status against Toxoplasma gondii is essential for assessing the risk of reactivation in immunocompromised patients or defining serological monitoring and appropriate prophylactic measures during pregnancy. In France, toxoplasmosis serological screening requires systematic testing for IgM and IgG antibodies. The Platelia Toxo IgG and IgM test (Bio-Rad) is one of the m...

Abstract Most patients infected with SARS-CoV-2 are asymptomatic or mildly symptomatic. However, the early and late antibody kinetics, association between levels, clinical symptoms, disease phase in these have not yet been fully defined. Confirmed their household contacts were evaluated over a period four months. The evaluation procedure included symptom monitoring, viral load serology analysis...

Immunoglobulin G (IgG), IgA, and IgM antibodies were measured in serum samples from 71 organ donors, 81 kidney transplant recipients at transplantation, and 67 patients during the posttransplant period by using a virus-like particle-based enzyme-linked immunosorbent assay (ELISA). BK virus (BKV) and JC virus DNA were detected in urine and plasma by real-time PCR. IgG antibodies to BKV were demo...

Passively acquired antibodies through colostrum will protect calves against etiological agents of neonatal calf diarrhea. Among them enteric diseases due to strains of Enterotoxigenic Escherichia coli (ETEC) are the most commonly occurring form of colibacillosis in newborn calves. Specific antibodies against whole ETEC cells and total immunoglobulin G in dam serum, colostrum and calf serum were...

COELINGH BENNINK, H. J. T. and MENGE, A. C. (1974): Spermatozoa1 antibodies in cervical mucus. Europ. .I. Obstet. Gynec. reprod. Biol., 414, 147-l 52. The indirect immunofluorescent technique performed on spermatozoa provides a suitable method for detecting spermatozoa1 antibodies in cervical mucus. Blood sera and preovulatory cervical mucus samples from I3 women with infertility of unknown ori...

We report here the case of two coworkers infected by same SARS-CoV-2 strain, presenting different immunological outcomes. One patient presented a strong IgG anti-receptor-binding domain immune response correlated with low and rapidly decreasing titer neutralizing antibodies. The other had similar but high antibody titers. Thus, host individual factors may be main drivers varying age clinical se...

The enzyme-linked immunosorbent assay (ELISA) was applied for immunological diagnosis of human tularemia, using lipopolysaccharide from Francisella tularensis as antigen. Sera collected from patients, healthy individuals, and vaccinated volunteers were investigated for antibodies against F. tularensis by ELISA and tube agglutination. In ELISA all sera were titrated with a polyspecific anti-immu...

From September 2005 to March 2007, 238 individuals being vaccinated for the first time with the yellow fever (YF) -17DD vaccine were enrolled in a cohort established in Recife, Brazil. A prospective study indicated that, after immunization, anti-YF immunoglobulin M (IgM) and anti-YF IgG were present in 70.6% (IgM) and 98.3% (IgG) of the vaccinated subjects. All vaccinees developed protective im...

It has been also reported that that H. pylori infection may be responsible for some endocrine disorders, such as autoimmune thyroid diseases, diabetes mellitus and primary hyperparathyroidism. H. pylori which express cytotoxin-associated gene A (CagA) may be more virulent than those that do not. The aim was to evaluate the seroprevalence of anti-H. pylori IgG and anti-CagA  antibodies in patien...

Leptospirosis severity may be increasing, with pulmonary involvement becoming more frequent. Does this increase result from an intense immune response to leptospire? Notice that renal failure, thrombocytopenia and pulmonary complications are found during the immune phase. Thirty-five hospitalized patients with Weil's disease had 5 blood samples drawn, from the 15th day to the 12th month of symp...