Escherichia coli and Neonatal Disease of Calves

Gay, Clive C.

doi:10.1128/mmbr.29.1.75-101.1965

Cited by 30 publications

(9 citation statements)

References 106 publications

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“…Anti-K activity still was not detected in the sera of the controls or the vaccine groups at parturition. These data would agree with the findings of others, that is, the 0agglutinating titers in sera of vaccinated dams are generally higher than are the titers detected against capsular antigens of the vaccine strain (12).…”

Section: Resultssupporting

confidence: 93%

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Experimental neonatal colibacillosis in cows: serological studies

Wilson¹,

Jutila²

1976

Infect Immun

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Serological studies of passive immunity in experimentally induced bovine colibacillosis was studied in a 41-cow university herd. Pregnant dams were antigenized prepartum with two injections administered by the subcutaneous and intrammamary routes with one of four vaccine preparations (killed bacteria, live bacteria, culture supernatant, or heart infusion broth [control]). The data indicate that 77% of the neonates born to vaccinated dams were strongly protected against oral challenge with Escherichia coli strain B-44. Bacterial agglutinin and passive hemagglutination titers of colostral whey directly reflected the efficacy of the vaccines. A notable decrease in the whey titers to somatic and capsular antigens occurred after heat treatment at 56 C for 30 min. Complicity of heat-liable immune factor(s) in protection from scouring was suggested. The nature of the protective antigen is not clearly defined by these studies but there is some evidence that the K antigen may play a vital role in this regard.

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Section: Resultssupporting

confidence: 93%

“…Agglutinin activities in sera or whey from antigenized dams has been used in the past to assess the efficacy of E. coli vaccines (8,12). These studies generally evaluate the effect of route and adjuvants upon the immune response.…”

mentioning

confidence: 99%

Experimental neonatal colibacillosis in cows: serological studies

Wilson¹,

Jutila²

1976

Infect Immun

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“…Serological examinations of E.coli isolated from plates utilized for coliform counts (Table 5). The majority of the 0 serotypes isolated have been reported to be associated with disease in domestic animals and poultry (5,6,9,14). The presence of enteric streptococci in samples was demonstrated but did not correlate well with the presence of salmonellae.…”

Section: Discussionmentioning

confidence: 94%

Microbiological Quality of Protein Feed Supplements Produced by Rendering Plants1

Loken

Culbert

Solee

1968

Applied Microbiology

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Samples of protein feed supplements produced by rendering plants were examined for salmionellae, total aerobic bacterial counts, coliform counts, and enterococci. Isolations of salmonellae were more frequent from products with high counts; however, 6% of the samples with total counts of less than 1,000 per gram and 14% of the samples with coliform counts of less than 1 per gram contained salmonellae. Serotypes of Escherichia coli which have been associated with disease in domestic animals and poultry were also isolated from products. Although the distribution of

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“…Severe dehydration caused by faecal loss of fluids and electrolytes is a frequent complication of diarrhoea that may result with the development of strong ion (metabolic) acidosis that is accompanied by central nervous system depression, ability to stand and suckling force (Berchtold, 2009). Other less common presentations include peritonitis, cystitis/pyelonephritis, endometritis, wound infections and meningitis derived from sepsis (Gay, 1965; Besser and Gay, 1985; Smith et al, 1985; CABI, 2019; EFSA AHAW Panel, 2021e).…”

Section: Assessmentmentioning

confidence: 99%

Assessment of listing and categorisation of animal diseases within the framework of the Animal Health Law (Regulation (EU) No 2016/429): antimicrobial‐resistant Escherichia coli in dogs and cats, horses, swine, poultry, cattle, sheep and goats

Nielsen¹,

Bicout²,

Calistri³

et al. 2022

EFS2

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Escherichia coli ( E. coli ) was identified among the most relevant antimicrobial‐resistant (AMR) bacteria in the EU for dogs and cats, horses, swine, poultry, cattle, sheep and goats in previous scientific opinions. Thus, it has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on its eligibility to be listed, Annex IV for its categorisation according to disease prevention and control rules as in Article 9 and Article 8 for listing animal species related to the bacterium. The assessment has been performed following a methodology previously published. The outcome is the median of the probability ranges provided by the experts, which indicates whether each criterion is fulfilled (lower bound ≥ 66%) or not (upper bound ≤ 33%), or whether there is uncertainty about fulfilment. Reasoning points are reported for criteria with uncertain outcome. According to the assessment here performed, it is uncertain whether AMR E. coli can be considered eligible to be listed for Union intervention according to Article 5 of the AHL (33–66% probability). According to the criteria in Annex IV, for the purpose of categorisation related to the level of prevention and control as in Article 9 of the AHL, the AHAW Panel concluded that the bacterium does not meet the criteria in Sections 1, 2, 3 and 4 (Categories A, B, C and D; 0–5%, 5–10%, 10–33% and 10–33% probability of meeting the criteria, respectively) and the AHAW Panel was uncertain whether it meets the criteria in Section 5 (Category E, 33–66% probability of meeting the criteria). The animal species to be listed for AMR E. coli according to Article 8 criteria include mammals, birds, reptiles and fish.

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Escherichia coli and Neonatal Disease of Calves

Cited by 30 publications

References 106 publications

Experimental neonatal colibacillosis in cows: serological studies

Experimental neonatal colibacillosis in cows: serological studies

Microbiological Quality of Protein Feed Supplements Produced by Rendering Plants1

Assessment of listing and categorisation of animal diseases within the framework of the Animal Health Law (Regulation (EU) No 2016/429): antimicrobial‐resistant Escherichia coli in dogs and cats, horses, swine, poultry, cattle, sheep and goats

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