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hospital outbreak of listeria monocytogenes septicaemia: a problem of cross infection?a 74-year-old man was admitted to hospital with septicaemia and meningitis caused by listeria monocytogenes. subsequently 3 inpatients developed listeria septicaemia. case-to-case transmission of the infection seems possible, although the method of transmission remains obscure.197882046
listeriosis.four patients with listeria monocytogenes infection are presented; three of whom had associated lymphoproliferative disorders. two of the four patients had listeria meningitis. meningitis is the most common manifestation of listeriosis in humans. specific diagnosis depends on demonstrating listeria monocytogenes in the cerebral spinal fluid; differentiation from other forms of acute meningitis cannot be made clinically. although listeriosis is recognized as a major global problem in both human a ...1976817600
listeriosis surveillance: 1991.a total of 130 cases of listeriosis was reported in england, wales and northern ireland in 1991. this represents a slight increase on the 1990 total of 118 reports but a marked decline compared with the peak incidence of reporting of 291 in 1988, which was part of an upsurge of cases between 1987 and mid 1989. two epidemiological features of note in 1991 were the reappearance of a late summer-autumn peak in cases (commonly seen prior to 1987) and an increase in the number of reports among younge ...19921284938
listeriosis in france. 19921285236
listeriosis surveillance: 1990.the annual numbers of reports of listeriosis in england, wales and northern ireland received by the phls communicable disease surveillance centre (cdsc) and the division of microbiological reagents (dmr) have shown remarkable changes in recent years. there was a near doubling in 1987 compared to 1986; a further increase in 1988; a sharp decline in 1989 (which occurred in the second half of that year) and, finally, the total in 1990 was the lowest since 1984. the rise and fall particularly (but n ...19911669746
hospital green salads and the effects of washing them.each week from april 1989 to february 1990, a plate of green salad prepared in the hospital kitchen was examined microbiologically. of the 256 plates examined, 51% had total viable counts (tvcs) of greater than or equal to 10(5) colony forming units (cfu) g-1. staphylococcus aureus was present in 13 samples and escherichia coli in one sample. no listeria monocytogenes, clostridium perfringens or salmonella spp. were isolated. the effect of washing mustard and cress, cucumber and the different la ...19911674258
bacteriological safety of cook-chill food at the royal free hospital, with particular reference to listeria.cook-chill food prepared by the catering department of the royal free hospital was examined over an 8-month period commencing october 1989. total aerobic viable counts (tavcs) were performed on 200 food specimens which were also examined for listeria using selective enrichment culture. ten of 200 food samples tested had tavcs greater than 10(5) colony forming units (cfu) g-1, and nine of these were from non-vegetarian (meat) dishes. although most of the food prepared by cook-chill had microbial ...19911686034
isolation of listeria species from precooked chilled foods.cook-chill food prepared commercially was introduced to serve our patients and staff in 1989. the presence of listeria monocytogenes in samples taken before regeneration was examined over two periods. for period a (april-november 1989), c. 0.2 g of food was examined; 2.7% of 992 meat samples and 0.6% of 1084 samples of other types of food were found to contain the organism. as a result, cold sliced meat was withdrawn from the patients' menu. for period b (february-july 1990), following the intro ...19911686035
the occurrence of listeria species in milk and dairy products: a national survey in england and wales.a total of 4172 samples of milk, cheese and other dairy products were examined over a 1-year period for the presence of listeria species. strains of listeria were found most frequently in soft, ripened cows milk cheese; 63 out of 769 (8.2%) samples contained listeria monocytogenes, 25 samples contained species other than l. monocytogenes, and 18 samples contained both l. monocytogenes and other listeria spp. eleven samples of pasteurized cows milk (1.1%) from four dairies contained l. monocytoge ...19911904761
human listeriosis and paté: a possible association.to study trends in human listeriosis and determine possible sources of infection.19911932944
infantile meningitis in england and wales: a two year study.a two year prospective study identified 1922 cases of meningitis in children under 1 year of age. a further 201 cases were identified from other sources. the annual incidence of meningitis during the first year of life was 1.6/1000; during the first 28 days of life it was 0.32/1000, and among postneonatal infants it was 1.22/1000. the male:female ratio was 1.4:1. the overall case fatality rate was 19.8% for neonates and 5.4% for postneonatal infants. two thirds of deaths identified in the study, ...19912039250
listeriosis and food-borne transmission. 19882893892
listeria monocytogenes and queen anne. 19724621771
listeriosis in chinchillas (chinchilla laniger). 19674962151
outbreak of listeria meningoencephalitis in young lambs.an outbreak of listeriosis occurred in five-week-old lambs in a flock of 200 dorset ewes and 240 lambs in-wintered. nine lambs were lost within a period of 10 days. no cases of stillbirth or abortion or cerebral listeriosis occurred in the ewes. silage had been fed on this farm to both cattle and sheep for 10 years without any previous problems. a description of the outbreak and the findings are reported.19836415890
listeriosis surveillance: 1992.the annual reported totals of cases of listeriosis in england, wales and northern ireland have remained low over the last three years and a total of 108 cases was reported in 1992. the clinical and epidemiological features reported in 1992 were similar to those in previous years and in other countries, except for a shift in the seasonal peak to the summer (a pattern consistently seen before the upsurge in 1987) and a reduction in the case fatality rate of non pregnancy-associated cases.19937693139
neonatal meningitis in england and wales: a review of routine national data.the objective of this study was to describe trends in neonatal meningitis in england and wales during the years 1975-91. laboratory reports and, for the years 1983-91, data on statutory notifications and deaths from neonatal meningitis were reviewed. the mean annual total of laboratory reports of neonatal bacterial meningitis 1975-91 was 109 cases (range 69-133) with a slight upward trend apparent in the latter half of the study period. the mean annual number of reports of neonatal viral meningi ...19947979482
the occurrence and seasonal changes in the isolation of listeria spp. in shop bought food stuffs, human faeces, sewage and soil from urban sources.eight hundred and twenty-two shop-bought food specimens, 136 soil and 692 faecal specimens were cultured for listeria spp. in a regular, year round survey. 19.7% (162/822) of the foods, 93.9% (108/115) of the sewage, 14.7% (20/136) soils and 1% (7/692) of faeces yielded listeria spp. with 10.5% foods, 60.0% sewage, 0.7% soils and 0.6% faeces containing l. monocytogenes. no seasonal variation was noted in isolates from either sewage or foods, with l. monocytogenes and l. innocua being the commone ...19948043351
the contamination of paté by listeria monocytogenes in england and wales in 1989 and 1990.in july 1989, 1834 samples of paté (of which 1698 were from retail displays) were examined by the phls for the presence of listeria monocytogenes. the survey was repeated in july 1990, when 626 paté samples on retail sale were examined. between the two surveys there was a marked reduction in the proportions of patés contaminated (10% in 1989 and 4% in 1990) and in the numbers of samples from which > 10(3) l. monocytogenes/g were recovered. the higher rate of contamination detected in 1989 was la ...19938519319
the contamination of pâté with listeria monocytogenes--results from the 1994 european community-coordinated food control program for england and wales.the listeria monocytogenes contamination of 3,065 pâté products sampled at the point of retail sale in england and wales was examined. ninety-seven percent of samples were free of contamination with l. monocytogenes, 2.0% (60) had levels of less than 200 cfu/g, and 0.6% (18) had levels of 200 cfu/g or more. fish and seafood pâté were significantly more commonly contaminated by l. monocytogenes than other pâté types (chi 2 test, p = 0.001). pâté obtained from small retail shops was significantly ...19989798145
health risks associated with unpasteurized goats' and ewes' milk on retail sale in england and wales. a phls dairy products working group study.a pilot study to determine the microbiological quality of unpasteurized milk from goats and ewes sampled from farm shops, health food shops, and other retail premises found that 47%, (47/100) of goats' and 50% (13/26) of ewes' milk samples failed the standards prescribed by the dairy products (hygiene) regulations 1995. in addition, staphylococcus aureus, haemolytic streptococci or enterococci, were present in excess of 10(2) c.f.u./ml in 9 (7 %) 2 (2 %) and 19 (15%) samples, respectively. salmo ...199910459642
characterization of listeria monocytogenes isolated from production lines of fresh and cold-smoked fish.the aims of this study were to characterize strains of listeria monocytogenes isolated from cold-smoking fish plants to establish possible routes of contamination through the processing chain.200111556924
foodborne infectious risks: do we need a wide system of data collection and survey? the lessons learned from the study of infectious intestinal disease in england.in 2000, the united kingdom government's food standards agency published "a report of the study of infectious intestinal disease in england". this report was the result of over a decade's endeavour and cost well in excess of 2 million pound sterling (approximately 3.3 million euros). the study originated in 1989. in response to national epidemics of foodborne infection with salmonella enteritidis phage type 4 and listeria monocytogenes, the government set up the committee on the microbiological ...200211938120
hospital-acquired listeriosis.we report four cases of listeriosis that occurred over a two-month period in north east england. due to the apparent nosocomial acquisition of infection and the clustering of cases in time and place, extended epidemiological investigation was performed and the outbreak was traced to a caterer who was providing sandwiches for hospital shops. we discuss the difficulties in preventing food-borne listeriosis in the hospital setting.200212090802
trends in indigenous foodborne disease and deaths, england and wales: 1992 to 2000.commitment to food safety is evidenced by high profile governmental initiatives around the globe. to measure progress towards targets, policy makers need to know the baseline from which they started.200212427786
microbiological study of ready-to-eat salad vegetables from retail establishments uncovers a national outbreak of salmonellosis.the increasing availability of bagged prepared salad vegetables reflects consumer demand for fresh, healthy, convenient, and additive-free foods that are safe and nutritious. during may and june 2001 a study of retail bagged prepared ready-to-eat salad vegetables was undertaken to determine the microbiological quality of these vegetables. examination of the salad vegetables revealed that the vast majority (3,826 of 3,852 samples; 99.3%) were of satisfactory or acceptable microbiological quality ...200312636292
wessex shopping basket survey - a structured approach to local food sampling.the shopping basket approach to food sampling, in which ready-to-eat food items from a shopping list were sampled at premises chosen at random, was adopted by 15 environmental health departments in the wessex region. a total of 2037 samples were analysed over a 30-month period. the microbiological quality varied considerably between food categories, with gravy and stock samples giving the highest proportion of satisfactory results. sliced meats, cooked rice and sandwiches gave the poorest overal ...200314594701
listeria monocytogenes and listeriosis: a review of hazard characterisation for use in microbiological risk assessment of foods.considerable effort has been put into the application of quantitative microbiological risk assessment for listeria monocytogenes, and data are available for england and wales (probably more so than most other countries) on the adverse health effects, together with incidence data on different age and risk groups for human l. monocytogenes infections. this paper reviews aspects of listeria and human listeriosis, especially from a public health perspective and provide hazard characterisation data, ...200415033265
listeria outbreak associated with sandwich consumption from a hospital retail shop, united kingdom.an outbreak of listeriosis occurred in the swindon area of the uk in autumn 2003. five cases were detected in pregnant women. four of these women were thought to have eaten prepacked sandwiches from a retail outlet in one particular hospital. sampling at the supplier detected listeria monocytogenes, which was indistinguishable on molecular testing from the patients isolates. recent changes in uk food legislation should help diminish the risk of further outbreaks/cases such as ours occurring.200616801694
changing pattern of human listeriosis, england and wales, 2001-2004.microbiologic and epidemiologic data on 1,933 cases of human listeriosis reported in england and wales from 1990 to 2004 were reviewed. a substantial increase in incidence occurred from 2001 to 2004. ten clusters (60 cases), likely to represent common-source outbreaks, were detected. however, these clusters did not account for the upsurge in incidence, which occurred sporadically, predominantly in patients > or =60 years of age with bacteremia and which was independent of sex; regional, seasonal ...200617073084
[historical note: in homage to lister].joseph lister, who disputes with klebs the third place as the father of microbiology, was just about to remain without a bacteria immortalizing his ñame. thanks to seeliger, now listeria is used for identifying the genus that pirie had already named listerella in 1927. through a quick review of the history of listeria monocytogenes, we get to know the principal facts in the lives of pirie and seeliger, investigators with absolutely different characters. we also review a brief history of the life ...200818949146
sudden increases in listeriosis rates in england and wales, 2001 and 2003.the monthly incidence of listeriosis infections in england and wales had 2 sudden increases during april 2001 (41%) and march 2003 (48%). although no causative association is demonstrated, these increases correspond to key dates relating to the onset and aftermath of the 2001 foot and mouth disease outbreak in the united kingdom.200919239766
disease presentation in relation to infection foci for non-pregnancy-associated human listeriosis in england and wales, 2001 to 2007.listeriosis is a rare but severe food-borne disease, affecting unborn or newly delivered infants, the elderly, and the immunocompromised. the epidemiology of listeriosis in england and wales changed between 2001 and 2007, with more patients > or = 60 years old presenting with bacteremia (but without central nervous system [cns] involvement). in order to explain this increase and understand the altered disease presentation, clinical, microbiological, and seasonal data on bacteremic cases of liste ...200919675217
attribution of human listeria monocytogenes infections in england and wales to ready-to-eat food sources placed on the market: adaptation of the hald salmonella source attribution model.human listeriosis is a rare but serious foodborne disease, with high morbidity and mortality in vulnerable populations (e.g., pregnant women, the elderly, and the immunocompromised). the disease is predominantly caused by the consumption of contaminated ready-to-eat foods. since 2001, an increase in the number of listeriosis cases has been observed in several european union countries, including england and wales, predominantly in the over-60s population. the cause of this selective increased inc ...201020156087
listeria monocytogenes infection in the over-60s in england between 2005 and 2008: a retrospective case-control study utilizing market research panel data.a retrospective case-control study of listeriosis in patients in england aged over 60 years is described. the incidence of listeriosis in patients aged ≥60 years in england has doubled since 2001; hence, the investigation of risk factors for infection in this group is important to inform on prevention and control. standardized epidemiological information has been sought on cases since 2005, but the value of the data accrued is limited without some perception of exposure prevalence in the populat ...201020586610
emergence of pregnancy-related listeriosis amongst ethnic minorities in england and wales.listeriosis is a rare but severe food-borne disease that predominantly affects pregnant women, the unborn, newborns, the elderly and immunocompromised people. following a large outbreak in the 1980s, specific food safety advice was provided to pregnant women and the immunocompromised in the united kingdom. following two coincident yet unconnected cases of pregnancy-related listeriosis in eastern european women in 2008, a review of the role of ethnicity in pregnancy-related listeriosis in england ...201020630145
human listeriosis in england, 2001-2007: association with neighbourhood deprivation.listeriosis is a rare but severe food-borne disease that predominantly affects pregnant women, the unborn, newborns, the elderly and immunocompromised people. despite the high mortality rate of the disease, its socio-economic determinants have not been studied in detail, meaning that health inequalities that might exist in relation to this disease are not apparent. laboratory surveillance data on listeriosis cases reported in england between 2001 and 2007 were linked to indices of deprivation an ...201020630146
concurrent conditions and human listeriosis, england, 1999-2009.the epidemiology of listeriosis in england and wales changed during 2001-2008; more patients ≥60 years of age had bacteremia than in previous years. to investigate these changes, we calculated risk for listeriosis by concurrent condition for non-pregnancy-associated listeriosis cases reported to the national surveillance system in england during 1999-2009. conditions occurring with l. monocytogenes infection were coded according to the international classification of diseases, 10th revision, and ...201121192852
a cluster of listeria monocytogenes infections in hospitalised adults, midlands, england, february 2011. 201121616050
an assessment of the microbiological quality of liver-based pâté in england 2012-13: comparison of samples collected at retail and from catering businesses.the purpose of this study was to investigate the microbiological quality of liver pâté. during 2012-13, a total of 870 samples, unrelated to the investigation of food-poisoning outbreaks, were collected either at retail (46%), catering (53%) or the point of manufacture (1%) and were tested using standard methods to detect salmonella spp. or campylobacter spp., and to enumerate for listeria spp., including listeria monocytogenes, clostridium perfringens, coagulase-positive staphylococci including ...201728190406
assessment of the microbiological quality of meat pies from retail sale in england 2013.outbreaks of foodborne illness caused by bacillus cereus and listeria monocytogenes in england associated with meat pie consumption were detected in 2012. to obtain baseline data for pies unrelated to outbreaks, 862 samples of ready-to-eat meat pies were collected at retail or from catering facilities in england in 2013 and examined to enumerate food-poisoning bacteria and indicator organisms using organization for standardization (iso) methods for listeria spp. including l. monocytogenes (iso 1 ...201627296425
knowledge gaps in host-parasite interaction preclude accurate assessment of meat-borne exposure to toxoplasma gondii.toxoplasma gondii is recognized as a widely prevalent zoonotic parasite worldwide. although several studies clearly identified meat products as an important source of t. gondii infections in humans, quantitative understanding of the risk posed to humans through the food chain is surprisingly scant. while probabilistic risk assessments for pathogens such as campylobacter jejuni, listeria monocytogenes or escherichia coli have been well established, attempts to quantify the probability of human ex ...201628139250
factors influencing the time between onset of illness and specimen collection in the diagnosis of non-pregnancy associated listeriosis in england and wales.listeriosis is an opportunistic bacterial infection caused by listeria monocytogenes and predominantly affects people who are immunocompromised. due to its severity and the population at risk, prompt clinical diagnosis and treatment of listeriosis is essential. a major step to making a clinical diagnosis is the collection of the appropriate specimen(s) for testing. this study explores factors that may influence the time between onset of illness and collection of specimen in order to inform clini ...201627341796
an outbreak of human listeriosis in england between 2010 and 2012 associated with the consumption of pork pies.an outbreak of listeriosis in england affecting 14 people between 2010 and 2012 and linked to the consumption of pork pies was investigated. all 14 individuals were older than 55 years, 12 were men, and 10 reported the presence of an underlying condition. all were resident in or had visited either of two english regions and were infected with the same strain of listeria monocytogenes. in interviews with 12 patients, 9 reported eating pork pies, and individuals that consumed pork pies were signif ...201627296419
pregnancy-associated listeriosis in england and wales.listeriosis is a rare but severe foodborne disease with low morbidity and high case-fatality rates. pregnant women, unborn and newborn babies are among the high-risk groups for listeriosis. we examined listeriosis cases reported to the enhanced surveillance system in england and wales from 1990 to 2010 to identify risk factors influencing outcome. cases were defined as pregnancy-associated if listeria monocytogenes was isolated from a pregnant woman or newborn infants aged <28 days. of the 3088 ...201524650375
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