نتایج جستجو برای: perfringens

تعداد نتایج: 3699  

Journal: :Journal of medical microbiology 2011
Daniel Paredes-Sabja Mahfuzur R Sarker

Clostridium perfringens type A is the causative agent of a variety of histotoxic and enteric diseases. The ability of C. perfringens spores to germinate in vivo might be due to the presence of nutrient germinants in the host tissue and blood. In the current study, we investigated the ability of spores of C. perfringens wild-type and mutation strains to germinate in blood. Results indicate that ...

Journal: :Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2005
John Bos Lauri Smithee Bruce McClane R F Distefano Francisco Uzal J Glenn Songer Sue Mallonee James M Crutcher

BACKGROUND Enterotoxigenic Clostridium perfringens type A is the third leading cause of foodborne disease in the United States, resulting annually in an estimated 250,000 cases of a typically mild, self-limiting gastrointestinal illness. METHODS A retrospective cohort study was conducted to determine the cause of a small cluster of cases of gastrointestinal illness, which included cases of se...

Journal: :Journal of bacteriology 1940
J H Orr G B Reed

In the flood of papers on the pathogenic anaerobes which appeared about 1920 several workers, particularly Zeissler (1919), Heller (1920), Hall (1922), came to the conclusion that agglutination reactions were of no value in the classification of the group. The apparent heterogenicity of strains of Clostridium perfringens has probably caused the greatest difficulty. Weinberg and Barotte (1928), ...

Journal: :Journal of food protection 2004
Sarah Smith Donald W Schaffner

Proper temperature control is essential in minimizing Clostridium perfringens germination, growth, and toxin production. The U.S. Department of Agriculture Food Safety and Inspection Service offers two options for the cooling of meat products: follow a standard time-temperature schedule or validate that alternative cooling regimes result in no more than a 1-log CFU/g increase of C. perfringens ...

2012
Julu Bhatnagar Marlene DeLeon-Carnes Kathryn L. Kellar Kakali Bandyopadhyay Zoi-Anna Antoniadou Wun-Ju Shieh Christopher D. Paddock Sherif R. Zaki

Clostridium sordellii and Clostridium perfringens are infrequent human pathogens; however, the case-fatality rates for the infections are very high, particularly in obstetric C. sordellii infections (>90%). Deaths from Clostridium sordellii and Clostridium perfringens toxic shock (CTS) are sudden, and diagnosis is often challenging. Formalin-fixed, paraffin-embedded (FFPE) tissues usually are t...

Journal: :Avian pathology : journal of the W.V.P.A 2006
Margarita Novoa-Garrido Stig Larsen Magne Kaldhusdal

The aim of this study was to investigate the relationship between mucosal gizzard lesions and caecal Clostridium perfringens counts. Gross pathological changes in the gizzard and small intestine, and caecal C. perfringens counts from 1217 meat-type chickens were recorded during the course of six experiments and were statistically analysed. C. perfringens counts increased significantly (P < 0.00...

2013
Maria Cristina Ossiprandi Laura Zerbini

Clostridium difficile and C. perfringens are enteric pathogens affecting a variety of mammals. This study evaluated the molecular enterotoxigenicity of Clostridium swine isolates by PCRs. One hundred and ten swine faeces were analyzed by culture assay. The faecal samples were from sixty-seven healthy animals and 43 with gastrointestinal tract disease. C. difficile strains were PCR-screened for ...

Journal: :Journal of food protection 2009
Neal J Golden Edmund A Crouch Heejeong Latimer Abdel-Razak Kadry Janell Kause

An assessment of the risk of illness associated with Clostridium perfringens in ready-to-eat and partially cooked meat and poultry products was completed to estimate the effect on the annual frequency of illnesses of changing the allowed maximal 1-log growth of C. perfringens during stabilization (cooling after the manufacturing heat step). The exposure assessment modeled stabilization, storage...

Journal: :Infection and immunity 2017
Jihong Li John C Freedman Daniel R Evans Bruce A McClane

Clostridium perfringens type D strains cause enterotoxemia and enteritis in livestock via epsilon toxin production. In type D strain CN3718, CodY was previously shown to increase the level of epsilon toxin production and repress sporulation. C. perfringens type A strains producing C. perfringens enterotoxin (CPE) cause human food poisoning and antibiotic-associated diarrhea. Sporulation is crit...

Journal: :Journal of food science 2012
Lin Li Carol Valenzuela-Martinez Mauricio Redondo Vijay K Juneja Dennis E Burson Harshavardhan Thippareddi

UNLABELLED Inhibition of Clostridium perfringens spore germination and outgrowth in reduced sodium roast beef by a blend of buffered lemon juice concentrate and vinegar (MoStatin LV1) during abusive exponential cooling was evaluated. Roast beef containing salt (NaCl; 1%, 1.5%, or 2%, w/w), blend of sodium pyro- and poly-phosphates (0.3%), and MoStatin LV1 (0%, 2%, or 2.5%) was inoculated with a...

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