BACKGROUND The measles-mumps-rubella (MMR) vaccine is effective in eliciting a good antibody response. In addition to the amount of antibodies, the avidity of these antibodies might be important in protecting against disease. METHODS The amount of circulating antibodies for measles, mumps, and rubella was measured with enzyme immunoassays, and the avidity of these antibodies was determined by...

Monoclonal antibodies to human immunoglobulin M (IgM) were used in a four-phase enzyme immunofluorescence "capture" assay for determination of IgM antibodies to measles and rubella viruses. Little or no background reactivity was seen in the test system, and interfering effects of rheumatoid factor were avoided by preabsorption of test sera with aggregated human IgG. Virus-specific IgM antibody ...

Enzyme-linked immunosorbent assays (ELISA) were developed for quantifying cytomegalovirus (CMV) and rubella antibodies using a single serum dilution (1/800) in conjunction with a standard curve. A near linear relation was found between the logarithms of absorbance values of sera at a dilution of 1/800 and the titres as determined by an end point dilution ELISA. The reproducibility of the single...

More than 85% of the immunoglobulin A (IgA) antibodies in normal adult serum are monomeric (m-IgA). By contrast, virus-specific IgA is mainly polymeric (p-IgA) in sera from patients with rubella, measles, and varicella. Specific m-IgA antibodies only reach quantitative significance in late convalescence. In patients with herpes zoster, on the other hand, a varying response was observed: in thre...

Aim: To investigate the clinical characteristics of diabetic patients with a low-titer positive for the anti-glutamic acid decarboxylase 65 antibody (GAD antibody). Methods: The subjects were 420 diabetic inpatients. The endogenous insulin secretion was estimated on the basis of the Cpeptide immunoreactivity from a 24 h urine collection (uCPR). Clinical variables were compared between patients ...

Background: The conventional diagnosis of congenital rubella is a rare occurrence of an obvious maternal exposure, resulting in an infant born with obvious signs such as cataracts, deafness, microcephaly or congenital heart disease. Patient: In this case, a mother with no known symptom, sign or exposure of rubella gave birth to a male infant without complication. The infant had no notable abnor...

Objective: This study was undertaken to determine in a cross-sectional survey whether rubella virus circulation in the Indian population induces detectable immunoglobulin G (IgG) antibodies with a protective level, in a random group of pregnant & nonpregnant women. Methods: Rubella-IgG antibody status was assessed in 1182 Indian women comprising of 617 pregnant women, 497 nonpregnant women of c...

Background Recent mumps outbreaks among 2-dose measles mumps rubella (MMR) vaccine recipients have raised questions regarding the potential benefits of a third dose of vaccine (MMR3). If MMR3 provides a sustained elevation in mumps antibody, it may be beneficial for certain at-risk groups or as an outbreak control measure. Methods Sera were collected immediately prior to MMR3 and at 1 month a...

Background and Aims: Rubella is a contagious viral disease mostly with mild clinical symptoms and often remains undiagnosed. Rubella infection may adversely affect pregnancy, especially in the first trimester and this mother to child transmission can cause congenital rubella and may be lead to permanent disability and mortality in children. Effective rubella vaccine should be prepared using sui...

Background: Selective antibody deficiency with normal immunoglobulins (SADNI) may be identified as part of distinct primary or secondary immunodeficiency disorders. The clinical manifestations include recurrent, often severe or prolonged, upper or lower respiratory tract infections. Objectives: To evaluate SADNI in patients with recurrent sinopulmonary infections and its relation to IgG subclas...