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Query: UNIPROT:O75191 (H. influenzae)
 4,961 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Surveillance of communicable diseases in the United States depends on the reporting of cases by primary physicians. It is widely recognized, however, that significant numbers of such cases are not reported. Reporting rates for many communicable diseases have never been determined. In this study, discharge records of 11 hospitals in Washington, DC were searched for cases of selected communicable diseases, and the percentage of these cases reported was determined. Five hundred and seventy of 93,563 (0.61%) patients hospitalized over the study period had one of these communicable diseases. Reporting rates for each were as follows: viral hepatitis, 11%; H. influenzae meningitis, 32%; salmonellosis, 42%; meningococcal meningitis, 50%; shigellosis, 62%; tuberculosis, 63%; total cases, 35%. There is indirect evidence that low reporting rates are not restricted to the area studied. Supplemental reporting by medical laboratories, hospital infection control, and record room personnel were suggested as additional soruces of case reports.
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PMID:The reporting of communicable diseases. 86 63

Sensori-neural hearing loss after H. influenzae meningitis in children has been reported to occur more frequently after treatment with ampicillin than with chloramphenicol. In the present survey, hearing was assessed clinically and, in most cases, audiometrically in 47 children seen after H. influenzae meningitis. Three children were found to have some sensori-neural hearing loss. In no case was this severe or suspected prior to examination. One was among 27 children treated with ampicillin; one was among eight treated with ampicillin and chloramphenicol; and one was treated with chloramphenicol and streptomycin. Most of the children received ampicillin in a dose of 250mg/kg/day or less, but the two who were treated with ampicillin and developed hearing loss were among five children who received higher doses, suggesting that ampicillin may be ototoxic when given in very high doses.
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PMID:H. influenzae meningitis treated with ampicillin or chloramphenicol, and subsequent hearing loss. 91 99

Between July 1, 1971, and June 30, 1974, thirty-nine cases of bacterial meningitis were diagnosed at the Alaska Native Health Service Hospital at Bethel, Alaska. Thirty-two (82%) occurred in infants less than one year of age. Haemophilus influenzae (H. influenzae) was the predominant causative agent, and was isolated from 23 (72%) of the 32 patients under one year of age. The annual incidence of H. influenzae meningitis in the Bethel area was 63/100,000, and the annual incidence of H. influenzae meningitis in children less than five years of age was 474/100,000 cases.
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PMID:Bacterial meningitis in southwestern Alaska. 92 Jul 27

Although Hemophilus influenzae is a common cause of meningitis, other members of the Hemophilus genus are rarely the infecting organism. Of 56 cases of meningitis due to Hemophilus species obseved at one hospital in the period 1970-74, 53 were due to H. influenzae and 3 to H. parainfluenzae. In the cases of H. parainfluenzae meningitis the clinical picture was complicated by associated sepsis, and therapy with ampicillin was not entirely satisfactory.
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PMID:Hemophilus parainfluenzae meningitis. 107 83

Eleven cases of Hemophilus meningitis seen in the last year are reported. Three were H. parainfluenzae and eight were H. influenzae. The number of patients is small but probably indicates that there is little difference in the clinical or laboratory data in meningitis caused by these two organisms. The children with H. parainfluenzae tended to be less anemic and had more normal admission spinal fluid sugars and proteins, but this was probably because these patients were older and had shorter prodromes. As more cases of H. parainfluenzae meningitis are noted, it seems likely that there will not be any difference in the clinical or laboratory data. Two of the three cases of H. parainfluenzae meningitis had the complication of ataxia secondary to severe bilateral vestibular deficits. Finally, it should be noted that these two organisms will not be distinguished by routine bacteriological studies, and that differentiation must be carried out by an experimental laboratory.
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PMID:Hemophilus meningitis: comparison of H. influenzae and H. parainfluenzae. 107 36

Children who had recovered from meningitis, orbital cellulitis, or epiglottitis caused by Haemophilus influenzae type b were immunized with capsular polysaccharide vaccine derived from that bacterium; some healthy siblings and adults who had not had H. influenzae infections were also vaccinated. Of 10 children who had had H. influenzae meningitis previously, only one had an antibody response to the vaccine. One child with prior H. influenzae orbital cellulitis also failed to respond. None of the children had detectable H. influenzae polysaccharide antigen in their bloodstream at the time of immunization. Two children who had had H. influenzae epiglottitis and six of seven controls without histories of H. influenzae infections responded immunologically to the vaccine. One of eight vaccinees under two years of age showed a response, and eight of 12 over two years responded well (P = 0.02). All four nonresponders over the age of two years had had H; influenzae meningitis or cellulitis. Children who had had H. influenzae meningitis responded less well to the polysaccharide vaccine than did other recipients of the vaccine; this difference could not be explained solely on the basis of age;
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PMID:Effect of previous infection on antibody response of children to vaccination with capsular polysaccharide of Haemophilus influenzae Type b. 108 Jan 78

Nose and throat swabs, for culture of Haemophilus influenza type b, and blood samples, for measurement of antibodies specific for that serotype, were collected from members of 28 families from which children had been admitted to hospital with acute H. influenzae type b infections (mainly meningitis or epiglottitis). The patients with meningitis were younger than those with epiglottitis and had more siblings, with a marked predominance of sisters. Investigations within a few days of admission of the affected children to hospital detected carriers of H. influenzae type b (19 altogether) in 13 of the 28 families, including 9 of the 13 families with 3 or more children. Members with raised antibody titres for H. influenzae type b (suggesting the presence of the organism for at least a few weeks) were found in 17 of the 25 families from which blood samples were obtained, including all 11 families with 3 or more children. Most of the patients probably acquired their infections from within their own families, and siblings under 11 years old were of predominant importance both as carriers and as potential sources of the patients' infections. Persistence of the organism within families for up to 6 months was demonstrated. Possible reasons for the difference in age-incidence between haemophilus meningitis and epiglottitis and for the occurrence of the former in babies with older sisters are suggested, and also a possible connection between the results of this survey and the likely value of immunization against H. influenzae type b.
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PMID:An investigation of the family background of acute Haemophilus infections of children. 108 Jul 69

Antibiotic therapy of bacterial meningitis is being reevaluated due to reports of ampicillin-resistant strains of Hemophilus influenzae type b. The infant reported had a relapse of H. influenzae type b meningitis after an excellent clinical and bacteriologic response to an initial course of combined antibiotic therapy including chloramphenicol. This relapse is postulated to be due to localized cerebral vasculitis which was not treated for a sufficient period of time during the initial course of therapy. The patient responded well to a second course of penicillin and chloramphenicol. Since the use of pencillin and chloramphenicol will be increasing, the clinician should be aware that bacteriologic relapse of H. influenzae type b meningitis may occur with chloramphenicol therapy.
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PMID:Relapse of Hemophilus influenzae type b meningitis after combined antibiotic therapy: report of a case. 108 7

Levels of antibody in serum after infection with Haemophilus influenza type b or challenge with polysaccharide vaccine are highly variable. Convalescent-phase serum antibody to the capsular polysaccharide of H. influenzae type b was measured in two groups of patients with pathophysiologically distinct diseases, meningitis and acute epiglottitis. Antibody response after H. influenzae meningitis was subnormal. Mean levels of antibody, the distribution of antibody levels by age, and erythrocyte and genetic marker lymphocyte antigens were studied; all results suggested that these two groups of patients were genetically and immunologically different from each other. Evidence suggested that the magnitude of the important host immunologic response was under host genetic control.
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PMID:Host factors and antibody response Haemophilus influenza type b meningitis and epiglottitis. 108 99

Bactericidal and radioimmunoassay (RIA) antibodies to Hemophilus influenzae, type b, were measured in the sera of 85 children aged 18 through 71 months. Bactericidal antibodies were present in only 21% of those over 60 months; RIA levels rose linearly with increasing age (P less than 0.005). Bactericidal antibodies were present in nine of 29 sera with RIA levels greater than or equal to 0.7 mug/ml and in only four of 56 sera with RIA levels less than 0.7 mug/ml (P less than 0.01). The discrepancies between the two tests probably reflect their measurement of different antibodies. Results of the RIA fit the clinical observation that H. influenzae meningitis becomes less frequent with age.
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PMID:Hemophilus influenzae, type b, antibody frequencies determined with bactericidal and radioimmunoassay tests. 108 76


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