Porcine<i>Streptococcus Suis</i>in Minnesota

Galina, Lucina; Collins, James E.; Pijoan, Carlos

doi:10.1177/104063879200400216

Cited by 22 publications

(18 citation statements)

References 8 publications

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“…As in other studies, S. suis serotype 2 was isolated more frequently than any other serotype. 6,11,23 Marked variability in the frequency distribution of serotypes is common among laboratories within the same country and among countries. This variability most likely reflects a real difference in geographical distribution.…”

Section: Discussionmentioning

confidence: 99%

Streptococcus Suis Infection in Swine: A Retrospective Study of 256 Cases. Part I. Epidemiologic Factors and Antibiotic Susceptibility Patterns

et al. 1993

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Abstract.A retrospective study of 256 cases of naturally acquired Streptococcus suis infections in swine submitted to the Indiana Animal Disease Diagnostic Laboratory from 1985 to 1989 was performed to determine the epidemiologic factors and antibiotic susceptibility patterns associated with S. suis serotypes 1-8 and 1/2. A standardized computer form was used to record the history, signalment, and clinical signs obtained from the records of selected cases and the microscopic lesions identified after review of the histopathology slides for each case. A computer statistics package (SAP) was used to evaluate the data. Although the number of recovered S. suis isolates increased in the fall and winter months, most serotypes were readily isolated throughout the year; only serotypes 1, 4, 7, and 1/2 increased in frequency of isolation in the fall, winter, and spring months. The majority (6 1.1%) of infected pigs in this study were < 12 weeks of age. More than 75% of pigs infected with serotypes 1, 6, 7, and 1/2 were < 12 weeks of age. There was extensive overlap in the age distributions for pigs with each serotype, and statistically significant differences for most serotypes were not observed. Fifty percent of pigs infected with S. suis serotypes 1 and 1/2 were 3-10 weeks of age, 50% of pigs infected with serotype 2 were 6-14 weeks of age, and 50% of pigs infected with serotypes 3, 4, 5, 7, and 8 were 2-16 weeks of age. Isolates of S. suis were not uniformly susceptible to penicillin, and a large percentage of isolates were resistant to many antibiotics in common usage. The results of this study indicated that the various serotypes of S. suis could not be readily separated based on antibiograms, epidemiologic factors (herd size, breed, etc.), or geographic location.Streptococcus suis is a significant pathogen of human as extensively studied, and there are few published beings and swine that was first isolated during disease reports concerning the epidemiologic factors, clinical outbreaks in swine in the early 1950s in Europe. 5,13 In signs, and gross or microscopic lesions associated with the last 20 years, reports of clinical disease associated these serotypes in naturally infected swine. The goals with S. suis infection have markedly increased. The of this study were to describe the epidemiology and organism has been recovered from swine, other animal pathology of S. suis serotypes 1-8 and 1/2. species, and human beings in various countries throughout the world. 7,10,12,15,19 To date, at least 28 different serotypes of S. suis have been identified, 8 although many laboratories routinely screen only for serotypes 1-8 and 1/2. (Isolates of S. suis serotype 1/2 contain capsular antigens common to both serotype 1 and serotype 2 and therefore will react with antibody to both serotype 1 and serotype 2 in coagglutination and other tests).Streptococcus suis serotypes 1 and 2 are the most completely characterized, and in the USA they are primarily associated with meningitis in neonatal pigs and suppurative bronchopneumonia in...

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Section: Discussionmentioning

confidence: 99%

Streptococcus Suis Infection in Swine: A Retrospective Study of 256 Cases. Part I. Epidemiologic Factors and Antibiotic Susceptibility Patterns

et al. 1993

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“…However, the presence of these virulence-related proteins was shown not to be associated with the virulence of S. suis Canadian strains isolated from diseased pigs [13]. Other phenotypes have been recorded and the relevance of MRP and EF in virulence of S. suis differs according to the origin of the isolates [8,13,22,26,31,32].…”

Section: Introductionmentioning

confidence: 99%

Production of Muraminidase-Released Protein (MRP), Extracellular Factor (EF) and Suilysin by field isolates of Streptococcus suis capsular types 2, 1/2, 9, 7 and 3 isolated from swine in France

Berthelot-Hérault

Morvan²,

Keribin³

et al. 2000

Vet. Res.

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-A total of 323 isolates of Streptococcus suis recovered from diseased or healthy pigs in France were serotyped. The presence of virulence-related proteins, Muraminidase-Released Protein (MRP), Extracellular Factor (EF) and Suilysin was also studied in 122 isolates of capsular types 2, 1/2, 9, 7 and 3 to evaluate their implication in virulence of S. suis. Capsular types 2, 1/2, 9, 7 and 3 were the most frequently detected (93%), with 69% for the capsular type 2 alone. Capsular types 2, 1/2, 9, 7, 3, 1, 4, 8, 18, 10 and 12 were isolated from diseased pigs, whereas types 2, 7, 9, 1/2, and 3 originated from the nasal cavities or tonsils of healthy animals. Most of the S. suis type 2 isolates recovered from diseased pigs carried MRP+ EF-Suilysin-(46%) or MRP+ EF+ Suilysin+ (28%) phenotypes. The MRP+ EF-Suilysin-phenotype was also detected in 67% of S. suis type 2 strains isolated from healthy pigs. The production of the virulence-related proteins was less frequently found in S. suis types 1/2, 9, 7 and 3 recovered either from diseased or healthy pigs. In this study, all the capsular type 1/2 strains were MRP+ EF-Suilysin-and all the S. suis type 7 harboured an MRP-EF-Suilysin-phenotype. The MRP-EF-Suilysin-phenotype was found in S. suis types 2, 3, 7 and 9 isolated from septicaemia, meningitis, pneumonia, and pleurisy. These results suggest that the presence of these proteins should not be used as a single condition for classifying the virulence of a field isolate in France. Streptococcus suis / capsular type / virulence / swine

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“…Os sorotipos de 1 a 8 são os mais prevalentes em casos clíni-cos. O sorotipo 2 tem sido, ao longo dos anos, o mais frequentemente isolado de animais doentes na grande maioria dos países e considerado o de maior caráter zoonótico, sendo o mais comumente descrito como causador de doença sistêmica em humanos (Touil et al, 1988;Galina et al, 1992;Higgins et al, 1992;Higgins e Gottschalk, 1993;Kataoka et al, 1993;Katsumi et al, 1997;Messier et al, 2008;Wei et al, 2009). Somente os países escandinavos descrevem maior prevalência do sorotipo 7 em relação ao 2.…”

Section: Palavras-chaveunclassified

Prevalência de Streptococcus suis sorotipo 2: discussão da literatura brasileira

Soares

Paes

2013

Arq. Inst. Biol.

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Streptococcus suis é mundialmente considerado um dos patógenos de maior impacto sanitário e econômico na indústria suinícola. Dentre os sorotipos descritos como zoonóticos, o sorotipoÂ 2 é o mais frequentemente isolado de animais e humanos doentes na maioria dos países. O estudo da epidemiologia das infecções por S.Â suis no Brasil é importante para a implantação de medidas efetivas de controle. O objetivo do presente trabalho foi realizar uma revisão crítica da literatura brasileira, com suporte da literatura mundial, abordando o diagnóstico do agente e sua prevalência em animais clinicamente doentes e portadores sadios, com destaque para a prevalência do sorotipo 2 no país.

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PorcineStreptococcus Suisin Minnesota

Cited by 22 publications

References 8 publications

Streptococcus Suis Infection in Swine: A Retrospective Study of 256 Cases. Part I. Epidemiologic Factors and Antibiotic Susceptibility Patterns

Streptococcus Suis Infection in Swine: A Retrospective Study of 256 Cases. Part I. Epidemiologic Factors and Antibiotic Susceptibility Patterns

Production of Muraminidase-Released Protein (MRP), Extracellular Factor (EF) and Suilysin by field isolates of Streptococcus suis capsular types 2, 1/2, 9, 7 and 3 isolated from swine in France

Prevalência de Streptococcus suis sorotipo 2: discussão da literatura brasileira

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