Biomaterial Database

Use of serology to diagnose pneumonia caused by nonencapsulated Haemophilus influenzae and Moraxella catarrhalis. 1994

L A Burman, and M Leinonen, and B Trollfors

Dept. of Infectious Diseases, Umeå University Hospital, Sweden.

Antibodies against nonencapsulated Haemophilus influenzae and Moraxella (Branhamella) catarrhalis were measured by ELISA in paired sera from 158 adult patients with pneumonia. A mixture of 10 clinical isolates of each species was used as antigen. Eleven patients (7%) showed significant increases in antibody to H. influenzae. In 3 of them, the organism was isolated from transtracheal aspirate and in another 7 from sputum, nasopharynx, or both. Six patients with nonencapsulated H. influenzae in transtracheal aspirate cultures did not show any antibody increase. Six patients had significant increases in antibody to M. catarrhalis. The organism was isolated in transtracheal aspirates from 1 of them and in sputum and nasopharynx (or both) from another 3. Two patients with M. catarrhalis in transtracheal aspirate cultures showed no antibody response. In conclusion, the serologic methods increased the possibility to diagnose infections caused by the two agents but had low sensitivity.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D011014	Pneumonia	Infection of the lung often accompanied by inflammation.	Experimental Lung Inflammation,Lobar Pneumonia,Lung Inflammation,Pneumonia, Lobar,Pneumonitis,Pulmonary Inflammation,Experimental Lung Inflammations,Inflammation, Experimental Lung,Inflammation, Lung,Inflammation, Pulmonary,Inflammations, Lung,Inflammations, Pulmonary,Lobar Pneumonias,Lung Inflammation, Experimental,Lung Inflammations,Lung Inflammations, Experimental,Pneumonias,Pneumonias, Lobar,Pneumonitides,Pulmonary Inflammations
D001936	Moraxella catarrhalis	Gram-negative aerobic cocci of low virulence that colonize the nasopharynx and occasionally cause MENINGITIS; BACTEREMIA; EMPYEMA; PERICARDITIS; and PNEUMONIA.	Branhamella catarrhalis,Mikrokkokus catarrhalis,Moraxella (Branhamella) catarrhalis
D004797	Enzyme-Linked Immunosorbent Assay	An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed.	ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D005260	Female		Females
D006192	Haemophilus Infections	Infections with bacteria of the genus HAEMOPHILUS.	Hemophilus Infections,Haemophilus influenzae Infection,Haemophilus influenzae Type b Infection,Hib Infection,Infections, Haemophilus,Infections, Hemophilus,Haemophilus Infection,Haemophilus influenzae Infections,Hemophilus Infection,Hib Infections,Infection, Haemophilus,Infection, Haemophilus influenzae,Infection, Hemophilus,Infection, Hib
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
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D000907	Antibodies, Bacterial	Immunoglobulins produced in a response to BACTERIAL ANTIGENS.	Bacterial Antibodies