Biomaterial Database

Enterotoxigenic Escherichia coli, rotavirus, porcine epidemic diarrhoea virus, adenovirus and calici-like virus in porcine postweaning diarrhoea in Hungary. 1996

B Nagy, and G Nagy, and M Meder, and E Mocsári

Veterinary Medical Research Institute, Hungarian Academy of Sciences, Budapest, Hungary.

In order to obtain data about the significance of enterotoxigenic E. coli (ETEC), and of the different enteric viruses in the aetiology of porcine postweaning diarrhoea, bacteriological, electron microscopic and ELISA studies were made on dead and live pigs. E. coli from the small intestine of diarrhoeal weaned pigs that died were tested for serogroups, pili (fimbriae) and toxin-geno-type. The 108 haemolytic E. coli representing 14 farms and 42 pigs were typed as follows: 0149:K88+ETEC (56.5%), OX:K88+ETEC (21.3%), O141:F18ac+ ETEC (4.6%), O147:F18ac+ETEC (3.7%), OX and O157:F18ac+ETEC (9.3%), verotoxigenic O141:F18ac (2%). In another study, when faecal samples of 92 live diarrhoeal weaned pigs (representing 19 farms) were tested, rotaviruses (18.6%), porcine epidemic diarrhoea virus (PED) (5.5%) and calici-like viruses (5.5%), and adenovirus (two pigs) were detected, besides K88+ETEC (12%) and K99+ or 987P+ETEC (one of each). Combined infections were detected in 9% of the samples. Sequential studies of diarrhoeal and nondiarrhoeal weaned and unweaned pigs indicated that PED virus and group A rotavirus were related to diarrhoea but adeno- or calici-like virus were not. It was concluded that K88+ETEC was the overwhelming aetiologic agent of porcine postweaning diarrhoea in Hungary, but F18ac+ETEC, group A rotavirus and PED virus were also significant.

UI	MeSH Term	Description	Entries
D008854	Microscopy, Electron	Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.	Electron Microscopy
D003967	Diarrhea	An increased liquidity or decreased consistency of FECES, such as running stool. Fecal consistency is related to the ratio of water-holding capacity of insoluble solids to total water, rather than the amount of water present. Diarrhea is not hyperdefecation or increased fecal weight.	Diarrheas
D004926	Escherichia coli	A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc.	Alkalescens-Dispar Group,Bacillus coli,Bacterium coli,Bacterium coli commune,Diffusely Adherent Escherichia coli,E coli,EAggEC,Enteroaggregative Escherichia coli,Enterococcus coli,Diffusely Adherent E. coli,Enteroaggregative E. coli,Enteroinvasive E. coli,Enteroinvasive Escherichia coli
D006814	Hungary	A country in Europe, northwest of Romania, south of Slovakia, and east of Austria. The capital is Budapest.
D000256	Adenoviridae	A family of non-enveloped viruses infecting mammals (MASTADENOVIRUS) and birds (AVIADENOVIRUS) or both (ATADENOVIRUS). Infections may be asymptomatic or result in a variety of diseases.	Adenoviruses,Ichtadenovirus,Adenovirus,Ichtadenoviruses
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D012401	Rotavirus	A genus of REOVIRIDAE, causing acute gastroenteritis in BIRDS and MAMMALS, including humans. Transmission is horizontal and by environmental contamination. Seven species (Rotaviruses A thru G) are recognized.	Neonatal Calf Diarrhea Virus,Rotaviruses
D013552	Swine	Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).	Phacochoerus,Pigs,Suidae,Warthogs,Wart Hogs,Hog, Wart,Hogs, Wart,Wart Hog
D013553	Swine Diseases	Diseases of domestic swine and of the wild boar of the genus Sus.	Disease, Swine,Diseases, Swine,Swine Disease
D014886	Weaning	Permanent deprivation of breast milk and commencement of nourishment with other food. (From Stedman, 25th ed)	Weanings