Biomaterial Database

Antibody response to capsular polysaccharides of groups A and C neisseria meningitidis and Haemophilus influenzae type b during bacteremic disease. 1981

H Käyhty, and H Jousimies-Somer, and H Peltola, and P H Mäketä

Levels of antibodies to the capsular polysaccharides of groups A and C Neisseria meningitidis and Haemophilus influenzae type b were determined by radioimmunoassay in acute- and convalescent-phase sera of 377 patients with meningitis, septicemia, or epiglottitis. Diagnostic criteria, based on a fourfold or greater rise in antibody level and/or a high specific antibody level, correctly identified 85% of group A meningococcal diseases, 90% of group C meningococcal diseases, and 78% of H. influenzae type b diseases in children older than but only 15% in infants younger than 1.5 years of age. When levels of antibody in acute-phase sera were high, they were predominantly of the IgA class. A greater than fourfold rise in levels of antibodies to group A meningococcus was seen in 10%-32% of persons with disease caused by other bacteria, but minimal false-positive reactions occurred with group C meningococcus or H. influenzae type b.

UI	MeSH Term	Description	Entries
D007136	Immunoglobulins	Multi-subunit proteins which function in IMMUNITY. They are produced by B LYMPHOCYTES from the IMMUNOGLOBULIN GENES. They are comprised of two heavy (IMMUNOGLOBULIN HEAVY CHAINS) and two light chains (IMMUNOGLOBULIN LIGHT CHAINS) with additional ancillary polypeptide chains depending on their isoforms. The variety of isoforms include monomeric or polymeric forms, and transmembrane forms (B-CELL ANTIGEN RECEPTORS) or secreted forms (ANTIBODIES). They are divided by the amino acid sequence of their heavy chains into five classes (IMMUNOGLOBULIN A; IMMUNOGLOBULIN D; IMMUNOGLOBULIN E; IMMUNOGLOBULIN G; IMMUNOGLOBULIN M) and various subclasses.	Globulins, Immune,Immune Globulin,Immune Globulins,Immunoglobulin,Globulin, Immune
D007223	Infant	A child between 1 and 23 months of age.	Infants
D007827	Laryngitis	Inflammation of the LARYNGEAL MUCOSA, including the VOCAL CORDS. Laryngitis is characterized by irritation, edema, and reduced pliability of the mucosa leading to VOICE DISORDERS such as APHONIA and HOARSENESS.	Laryngitides
D008583	Meningitis, Haemophilus	Infections of the nervous system caused by bacteria of the genus HAEMOPHILUS, and marked by prominent inflammation of the MENINGES. HAEMOPHILUS INFLUENZAE TYPE B is the most common causative organism. The condition primarily affects children under 6 years of age but may occur in adults.	Haemophilus influenzae Meningitis Type B,Hemophilus influenzae Meningitis Type B,Meningitis, Haemophilus influenzae Type F,Meningitis, Haemophilus parainfluenzae,Meningitis, Hemophilus,Meningitis, Hemophilus influenzae Type F,Meningitis, Hemophilus influenzae, Type B,Meninigitis, HiB,Type B Haemophilus influenzae Meningitis,Type B Hemophilus influenzae Meningitis,Haemophilus Meningitides,Haemophilus Meningitis,Haemophilus parainfluenzae Meningitides,Haemophilus parainfluenzae Meningitis,Hemophilus Meningitides,Hemophilus Meningitis,HiB Meninigitis,Meningitides, Haemophilus,Meningitides, Haemophilus parainfluenzae,Meningitides, Hemophilus
D009345	Neisseria meningitidis	A species of gram-negative, aerobic BACTERIA. It is a commensal and pathogen only of humans, and can be carried asymptomatically in the NASOPHARYNX. When found in cerebrospinal fluid it is the causative agent of cerebrospinal meningitis (MENINGITIS, MENINGOCOCCAL). It is also found in venereal discharges and blood. There are at least 13 serogroups based on antigenic differences in the capsular polysaccharides; the ones causing most meningitis infections being A, B, C, Y, and W-135. Each serogroup can be further classified by serotype, serosubtype, and immunotype.	Diplokokkus intracellularis meningitidis,Meningococcus,Micrococcus intracellularis,Micrococcus meningitidis,Micrococcus meningitidis cerebrospinalis,Neisseria weichselbaumii
D011135	Polysaccharides, Bacterial	Polysaccharides found in bacteria and in capsules thereof.	Bacterial Polysaccharides
D002675	Child, Preschool	A child between the ages of 2 and 5.	Children, Preschool,Preschool Child,Preschool Children
D006193	Haemophilus influenzae	A species of HAEMOPHILUS found on the mucous membranes of humans and a variety of animals. The species is further divided into biotypes I through VIII.	Bacterium influenzae,Coccobacillus pfeifferi,Haemophilus meningitidis,Hemophilus influenzae,Influenza-bacillus,Mycobacterium influenzae
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000208	Acute Disease	Disease having a short and relatively severe course.	Acute Diseases,Disease, Acute,Diseases, Acute