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Target Concepts:
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Query: UMLS:C0017160 (
gastroenteritis
)
11,398
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
Infection with small round structured viruses (SRSV) usually causes an acute, but short-lived, attack of
gastroenteritis
in which vomiting is a prominent feature. Most documented outbreaks have occurred in institutional and catering establishments and infected food handlers are often implicated. Reports of SRSV infection have risen substantially during the last decade partly due to an increase in the number of laboratories able to examine samples for this organism. Ascertainment is likely to remain low, however, until a sensitive, simple, reliable and economical method of detection becomes routinely available.
CDR
(Lond Engl Rev) 1991 Dec 06
PMID:Infection with small round structured viruses: England and Wales 1981-1990. 166 58
An outbreak of
gastroenteritis
occurred in catering students attending three classes at a Yorkshire college in February 1994. The three classes were held on the Monday, Tuesday, and Thursday of the same week and had identical menus. Thirty-seven of the 90 students were affected. A cohort study, with a 94% response rate, showed a highly significant association of illness with the consumption of raw oysters grown in English coastal waters.
Commun Dis Rep
CDR
Rev 1995 Sep 15
PMID:Gastroenteritis associated with oysters. 755 May 88
Three hundred and seventy-eight passengers reported
gastroenteritis
during four cruises in the western Mediterranean on consecutive weeks of 1995. The rate at which cases were reported each day increased on the fourth cruise. The ship's owner commissioned an epidemiological investigation from the PHLS Communicable Disease Surveillance Centre. Cases reported explosive vomiting and diarrhoea, which lasted from 24 hours to five days, and were suggestive of viral gastroenteritis. No food handlers reported illness, but enquiries suggested that some had been ill and treated themselves. No bacterial pathogens were isolated from faecal specimens provided by cases or from water, food, and environmental samples taken from the galley. Small round structured viruses (SRSV) were identified by reverse transcriptase polymerase chain reaction in two faecal specimens and one specimen of vomit from people who became ill during the fourth cruise. SRSV was also identified in one faecal specimen by electron microscopy. Environmental inspection revealed inappropriate food handling, hygiene, and storage. During one 24 hour period no chlorine was detectable in the water. A case control study conducted on the fourth cruise sought details of exposure to various foodstuffs, unbottled water, and various parts of the ship. No significant associations were found between illness and any exposures. The evidence strongly suggested a continuing outbreak of SRSV infection transmitted from person to person. Some passengers remained on board for a second week and could have transmitted their infection to new arrivals. The ship was cleared and disinfected at the end of the fourth cruise in order to interrupt transmission. Fewer than 10 cases presented in each of the fifth and sixth cruises.
Commun Dis Rep
CDR
Rev 1996 Dec 06
PMID:An outbreak of viral gastroenteritis on a cruise ship. 899 May 76
An outbreak of
gastroenteritis
caused by campylobacter infection was identified in May 1995 in a residential school in Gloucestershire for children with special needs. Eight primary and four secondary cases were identified, mostly confined to one house in the school; faecal specimens from three cases grew Campylobacter jejuni. A retrospective cohort study showed that drinking pasteurised milk from bottles with damaged tops was associated with illness in primary cases (p = 0.01). Bird pecking of milk bottle tops probably accounts for several thousand cases of human campylobacter infections during May and June each year in England and Wales. Milk bottle containers for doorstep delivery should be resistant to contamination by birds.
Commun Dis Rep
CDR
Rev 1997 Mar 07
PMID:Outbreak of campylobacter enteritis in a residential school associated with bird pecked bottle tops. 908 Jul 27
An outbreak of
gastroenteritis
arose in people who attended a charity barbecue at a hotel in a rural area of Northern Ireland in July 1995. About 120 people attended the barbecue, 98 of whom were identified. Fifty-one of them and seven members of hotel staff met the case definition. An epidemiological investigation showed that illness was significantly associated with eating foods containing mayonnaise that had been prepared using raw shell eggs and stored at too high a temperature. Salmonella enteritidis phage type 4 was cultured from 17 out of 24 faecal specimens received from people who attended the barbecue and in 17 out of 34 faecal specimens from staff, including all seven staff cases. The primary source of infection was not identified despite thorough investigation. This paper highlights the value of administering questionnaires by telephone when investigating community outbreaks of infection in rural areas, the important role of general practitioners in the identification of community outbreaks, and the need to periodically reiterate public health messages, in particular for food handlers and caterers.
Commun Dis Rep
CDR
Rev 1997 May 02
PMID:An outbreak of Salmonella enteritidis phage type 4 infection in a rural community in Northern Ireland. 917 10
Gastroenteritis
is a major cause of illness in young children worldwide. The magnitude of this problem is underestimated, as many cases may not present for medical treatment and many that do present are not asked to provide a faecal specimen. In this study, laboratory reports of pathogens responsible for
gastroenteritis
in children under 5 years in England and Wales reported to the PHLS Communicable Disease Surveillance Centre from January 1990 to December 1994 were analysed. These reports were compared with food poisoning notifications and mortality attributable to
gastroenteritis
collated by the Office of Population Censuses and Surveys in the same age group over the same period. Thirty-nine per cent of the 167630 laboratory faecal identifications were of rotavirus. Reports were commonest in children under 1 year of age during the winter months. Salmonellas and campylobacters were isolated from 16% and 15% of the specimens reported respectively. During the study period salmonella reporting rates rose by 48% in this age group. Improving the microbiological quality of food and raising standards of food hygiene, together with increasing parental awareness of the possibility of food poisoning in young children, will help to reduce morbidity in this age group. The majority of childhood deaths attributable to
gastroenteritis
were associated with rotavirus infection. The introduction of recently developed vaccines against rotavirus could substantially reduce the level of morbidity in this age group.
Commun Dis Rep
CDR
Rev 1997 May 30
PMID:Gastroenteritis in children under 5 years of age in England and Wales. 918 81
A wedding reception at a North Yorkshire hotel was followed by an explosive outbreak of
gastroenteritis
. The attack rate among the 111 guests was 50% and vomiting was a predominant feature. The results of laboratory and epidemiological investigations were consistent with a common source outbreak of small round structured virus (SRSV) infection genotype II. The source of the outbreak was traced to a kitchen assistant who suddenly became ill on the eve of the reception and vomited into a sink used for preparing vegetables. The sink was cleaned with a chlorine based disinfectant and used the next morning to prepare a potato salad, subsequently identified as the vehicle of infection in a cohort study of guests (odds ratio 3.21; CI 1.78-5.78, p = 0.0001). No other food was associated with illness. The outbreak provides further supporting evidence of the importance of vomiting in the transmission of SRSV infection, highlights the virulence of this group of viruses, and indicates their relative resistance to environmental disinfection and decontamination. It also highlights the need for the adequate training of catering staff and the implementation and enforcement of food hygiene regulations.
Commun Dis Rep
CDR
Rev 1997 Jun 27
PMID:Outbreak of small round structured virus gastroenteritis arose after kitchen assistant vomited. 921 24
Human noroviruses (HuNoVs) cause sporadic and epidemic
gastroenteritis
worldwide. They are classified into two major genogroups (GI and GII), with each genogroup further divided into multiple genotypes. Susceptibility to these viruses is influenced by genetically determined histo-blood group antigen (HBGA) expression. HBGAs function as cell attachment factors by binding to a surface-exposed region in the protruding (P) domain of the capsid protein. Sequence variations in this region that result in differential HBGA binding patterns and antigenicity are suggested to form a basis for strain diversification. Recent studies show that serum antibodies that block HBGA binding correlate with protection against illness. Although genogroup-dependent variation in HBGA binding specificity is structurally well characterized, an understanding of how antibodies block HBGA binding and how genotypic variations affect such blockade is lacking. Our crystallographic studies of the GI.1 P domain in complex with the Fab fragment of a human IgA monoclonal antibody (IgA 5I2) with HBGA blocking activity show that the antibody recognizes a conformational epitope formed by two surface-exposed loop clusters in the P domain. The antibody engulfs the HBGA binding site but does not affect its structural integrity. An unusual feature of the antigen recognition by IgA 5I2 is the predominant involvement of the
CDR
light chain 1 in contrast to the commonly observed
CDR
heavy chain 3, providing a unique perspective into antibody diversity in antigen recognition. Identification of the antigenic site in the P domain shows how genotypic variations might allow escape from antibody neutralization and exemplifies the interplay between antigenicity and HBGA specificity in HuNoV evolution.
...
PMID:Structural basis for norovirus neutralization by an HBGA blocking human IgA antibody. 2764 85