Enteric Symptoms Research Articles

Salmonella canada — um novo sorotipo patogênico para aves

Serotype S. Canada (4,12:b-1,6), described for the first time by YURACK et al.(1961) in Canada from 63 isolates from human patients with inaparent infection or showing enteric and renal symptoms, was isolated, presumably for the first time, in broilers in Brazil. The organism was isolated in pure culture from liver and unabsorbed yolk of chicks with 4-30 days of age showing 5-23 per cent mortality. The organism showed a low pathogenicity when inoculated orally but was highly pathogenic by the intraperitonial route.

SUBACUTE MYELO-OPTICO-NEUROPATHY (S.M.O.N.) IN JAPAN: A Community Survey

An epidemiological survey of subacute myelo-optico-neuropathy (S.M.O.N.) was made in Toda City (population 65,000) and Warabi City (population 76,000), Japan. In Toda City, after an outbreak in 1964, the occurrence was sporadic. In Warabi City the incidence was lower and less variable. The highest incidence was in middle-aged females; no cases were found in children. Out of 47 cases examined, 36 had been treated at 2 particular medical institutions (A and B) at the time of onset of neurological symptoms, although there were 52 medical institutions in the areas. The remaining 11 cases had been treated in other medical institutions inside and outside the areas. Review of the National Health Insurance returns from 30 medical institutions in Warabi City revealed that the highest dosage of clioquinol was used in medical institution B. No case of S.M.O.N was observed in 20 medical institutions which did not use clioquinol. In medical institution A, 17 out of 21 patients with confirmed S.M.O.N. (81%) had been given clioquinol before the onset of neurological symptoms. A comparative study showed that the dosage of clioquinol to S.M.O.N. patients had been heavier than to other patients with similar enteric symptoms.

Role of Salmon Diet and of Rectal Intubation in Experimental Amebic Colitis in the Dog

SummaryThe relation of canned salmon diet to amebic colitis was studied in two groups of dogs comprising twelve fed exclusively on canned salmon and four on normal diet, either inoculated with Entamoeba histolytica or not inoculated. One group of dogs was intubated transrectally with a glass tube three times a week; the other group was not intubated. Hookworms and whipworms were eliminated or reduced to negligible numbers. The character of the stools was recorded daily and the condition of the cecum and colon, fixed immediately after sacrifice, was observed histologically.The dogs on salmon diet developed varying degrees of mucoid diarrhea and dysentery, the intensity of which was in direct relationship to the amount of salmon consumed. The pathology observed in such dogs was characteristic of a chronic nonspecific inflammation of the intestinal mucosa. Infection with E. histolytica, when present, did not have any determining effect upon the enteric symptoms; neither did amebae markedly change the pathology observed. The irritative action of the diet was clearly enhanced by frequent colonic aspiration, the combination of the two factors regularly producing dysentery in the dogs thus treated. In one dysenteric dog infected with mixed cysts of three ameba species a colony of amebae (presumably Entamoeba coli) was seen in the sloughed mucosa in approximately the same location where colonies of E. histolytica had been found in other dogs. The control dogs on horse meat diet passed consistently normal stools, regardless of whether or not they were infected with E. histolytica or harbored hookworms or whipworms. Transrectal intubation of such dogs produced only small amounts of blood and mucus in the stools following aspiration.It is felt that the salmon diet is the main causative factor in the development of this dysenteric syndrome in the dog, acting as a local irritant upon the intestinal mucosa and causing a nonspecific type of colitis with sloughing of the mucosa and output of bloody mucus. Amebae may aid, when present, in the causation of symtoms but no evidence was found of their being primary invaders of the tissues of the dog. Hookworms are not considered to be an important factor in this process.

Observation on etiology of diarrheal diseases in Arizona.

SummaryA total of 630 persons with symptoms of acute diarrhea was studied to evaluate the association between recognized enteric pathogens and diarrhea. Approximately 67% of persons for whom treatment was sought were less than 1 year of age. Recognized bacterial pathogens were isolated by a single examination from 57% of the cases. Shigella were recovered from 26%, enteropathogenic Esch. coli from 31%, and Salmonella from 7%. About 90% of all enteropathogenic Esch. coli recovered were from infants less than 1 year old; about 40% of the Shigella isolations were from this group. The cases from which etiologic agents were not recovered showed no characteristic distribution with respect to age of patients or month of occurrence.Results differ from earlier studies in the southwest in that the rate of association of Shigella with acute diarrhea was lower and relatively few persons other than infants were found with acute enteric symptoms.

Epidemic Salmonella newport infection in a metropolitan area.

SALMONELLA infection in Massachusetts occurs both sporadically and in epidemic form.1 By and large, most clinical cases are brought to light as a result of cultural studies on patients with gastrointestinal or enteric symptoms. When organisms recovered from patients or carriers are classified according to the Kauffmann–White schema, a large variety of salmonella types is demonstrated.2 , 3 However, under ordinary circumstances certain types appear more frequently than others. In Massachusetts, for example, Salmonella typhimurium and S. newport together accounted for 57.5 per cent of all sporadic cases in a study covering seven years.1 S. typhimurium and S. newport, although somewhat . . .

The Biological Problems of To-Day

ABSTRACT Here, we report the complete genome sequence of feline panleukopenia virus (FPLV) strain HRB-CS1, isolated from a dead domestic cat showing enteric symptoms in China in 2014. The genome of HRB-CS1 was sequenced and analyzed, which will help to understand the genetic characteristics and evolution of FPLV in China.