Infections with group-B streptococci

Mt, Parker

doi:10.1093/jac/5.supplement_a.27

Cited by 25 publications

(5 citation statements)

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“…This difference may be related to the developmental stage of the fetus or neonate and the route of infection. Similar differences are found in other bacterial infections of the newborn, e.g., those due to Lancefield group-B streptococci (Parker, 1979). L. monocytogenes can be isolated from the genital tracts of mothers of babies with early onset listeriosis; the mothers may also develop a mild pyrexial illness during pregnancy or at delivery.…”

Section: Cross-in Fec Tionsupporting

confidence: 53%

Aspects of the epidemiology of human Listeria monocytogenes infections in Britain 1967-1984; the use of serotyping and phage typing

McLauchlin

Audurier²,

Taylor

1986

Journal of Medical Microbiology

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Summary. Strains of Listeria monocytogenes from 475 cases of human listeriosis collected during [1967][1968][1969][1970][1971][1972][1973][1974][1975][1976][1977][1978][1979][1980][1981][1982][1983][1984], belonged to one of three serogroups (1/2,3 or 4). They were phage typed with a set of 28 phages to investigate three aspects of the epidemiology of listeriosis. (i) Three patients each had two episodes of listeriosis, 3 months to 2 years apart, with strains of the same serogroup and indistinguishable by phage typing.(ii) Ten episodes of possible cross-infection between pairs of neonates in the same hospital occurred; the first baby was ill at or within 1 day of birth, and the second baby became ill 8-12 days after contact with the first. In each pair the L. monocytogenes strains were of the same serogroup and indistinguishable by phage typing. (iii) In three clusters of cases there may have been a common source of infection. L. monocytogenes strains from 10 of 1 1 cases of listeriosis in the Carlisle area in Ju1.-Dec. 198 1 were of the same serogroup; nine strains were non-phage-typable. The second cluster involved four adults treated at one hospital and the third a pair of neonates who were ill shortly after birth. In each cluster, strains were of the same serogroup, and were indistinguishable by phage typing. These last two clusters occurred during a short period when an unusually high proportion of strains from all cases of human listeriosis in Britain were indistinguishable by phage typing from the cluster strains, suggesting the possibility of common source infection.

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Section: Cross-in Fec Tionsupporting

confidence: 53%

Aspects of the epidemiology of human Listeria monocytogenes infections in Britain 1967-1984; the use of serotyping and phage typing

McLauchlin

Audurier²,

Taylor

1986

Journal of Medical Microbiology

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“…Recent surveys in Europe and North America [6,20,44], have given similar proportions of non-pregnant and pregnancy associated cases to those described here. The incuriosity among medical and microbiological staff towards the premature, under-weight and sickly infant has been noted by other authors with regard to other 'emerging' pathogens of the very young [45][46][47], and may also contribute to the apparent increase in neonatal and foetal listeriosis.…”

Section: Discussionmentioning

confidence: 99%

Human listeriosis in Britain, 1967–85, a summary of 722 cases: 2. Listeriosis in non-pregnant individuals, a changing pattern of infection and seasonal incidence

McLauchlin

1990

Epidemiol. Infect.

112

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Clinical information was collected on 722 cases of Listeria monocytogenes infections in humans occurring in Britain between 1967 and 1985. This series comprised 34% (248 cases) associated with pregnancy and 66% (474 cases) in non-pregnant adults and juveniles. The cases not associated with pregnancy comprised: 76% in patients with severe underlying illness (of which 34% had central nervous system infections, and 42% bacteraemia without involvement of the central nervous system); 21% in previously healthy individuals (of whom 18% had meningitis); and 3% in patients without bacteraemia or involvement of the central nervous system. Cases occurred most often in male patients over 40 years of age. The overall mortality was 44%. Overall, the pattern of infection has altered to a disease of higher incidence, affecting most often susceptible non-pregnant individuals and the unborn. An annual increase in incidence of listeriosis occurred in the autumn in all categories of patients.

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“…12 13 This can be explained in part by improved reporting, more rigorous investigation of patients, increasing popularity of blood cultures as a diagnostic test, and changes in the epidemiology and aetiology of bacteraemia in an increasingly elderly population. '2-15 There are, however, worrying trends to suggest that minor and serious infections from all BHS are truly increasing in frequency.6 [16][17][18][19][20][21][22] In the era following the introduction of antibiotics most serious infections have been considered to take place in patients with underlying predisposing conditions, such as malignancy, diabetes, alcoholism, drug abuse, and in neonates and the elderly. '6 [23][24][25][26][27] Although these groups of patients remain at high risk, recent outbreaks of BHS have sometimes afflicted healthy subjects with serious life threatening infections.…”

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confidence: 99%