Pathogenic investigations of Streptococcus pasteurianus , an underreported zoonotic pathogen, isolated from a diseased piglet with meningitis

2021 ◽  
Author(s):  
Shuoyue Wang ◽  
Miaohang Ma ◽  
Zijing Liang ◽  
Xinchi Zhu ◽  
Huochun Yao ◽  
...  
Keyword(s):  
Zoonotic Pathogen

scholarly journals Subtyping Salmonella isolated from pet dogs with multilocus sequence typing (MLST) and clustered regularly interspaced short palindromic repeats (CRISPRs)

AMB Express ◽  
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Cheng Yang ◽  
Wangfeng Shao ◽  
Lingling Wei ◽  
Lingxiao Chen ◽  
Aihua Zhu ◽  
...  
Keyword(s):  
Multilocus Sequence Typing ◽  
Sequence Type ◽  
Jiangsu Province ◽  
Zoonotic Pathogen ◽  
Recognition Ability ◽  
Prevention And Treatment ◽  
Common Serotypes ◽  
The Common ◽  
Different Sources ◽  
Positive Effect

AbstractSalmonella, as a zoonotic pathogen, has attracted widespread attention worldwide, especially in the transmission between household pets and humans. Therefore, we investigated the epidemic distribution of dog Salmonella from pet hospitals and breeding base in Xuzhou, Jiangsu Province, China, and used multilocus sequence typing (MLST) and clustered regularly interspaced short palindromic repeats (CRISPRs) to subtype Salmonella isolates. From April 2018 to November 2019, a total of 469 samples were collected from pet hospitals and breeding base, including 339 dog samples and 60 cat samples. S. Kentucky (40.74%) was the most prevalent serotype, but other, such as S. Typhimurium (18.52%) and S. Indiana (18.52%), were also widespread. Eight different sequence type (ST) patterns were identified by MLST and ST198 was the highest proportion of these isolates. CRISPRs analysis showed that 9 different Kentucky CRISPR types (KCTs) was identified from ST198. 48 spacers including 29 (6 News) for CRISPR1 and 19 (4 News) for CRISPR2 that proved the polymorphic of Salmonella genes in samples from different sources. The analysis demonstrated that the common serotypes were widely present in pet hosts in the same area. This analysis shows that CRISPR genes have better recognition ability in the same serotype, which has a positive effect on the traceability of Salmonella and the prevention and treatment of salmonellosis.

scholarly journals Neospora caninum and/or Toxoplasma gondii Seroprevalence: Vaccination against PCV2 and Muscle Enzyme Activity in Seropositive and Seronegative Pigs

2021 ◽  
Vol 9 (5) ◽  
pp. 1097
Author(s):  
Labrini V. Athanasiou ◽  
Vasileios G. Papatsiros ◽  
Victoria M. Spanou ◽  
Eleni G. Katsogiannou ◽  
Anna Dedousi
Keyword(s):  
Enzyme Activity ◽  
Toxoplasma Gondii ◽  
Neospora Caninum ◽  
Human Infection ◽  
Porcine Circovirus ◽  
Muscle Enzyme ◽  
Blood Samples ◽  
Zoonotic Pathogen ◽  
Muscle Enzyme Activity ◽  
Immunofluorescence Antibody

Neospora caninum and Toxoplasma gondii affect both humans and animals worldwide. To investigate their seroprevalence and differences in seropositivity between pigs vaccinated and unvaccinated against porcine circovirus 2 (PCV2), as well as differences in muscle enzyme activity between seropositive and seronegative pigs, blood samples were collected from 380 sows. Antibodies against T. gondii and N. caninum were detected by an indirect immunofluorescence antibody (IFA) assay, while the activities of creatine kinase (CK) and aspartate aminotransferase (AST) were biochemically assessed. Out of the 364 sows finally included in the study, 4.4%, 3.5%, and 0.5% were seropositive to T. gondii, N. caninum, or both. A significantly higher percentage of seropositivity against T. gondii and/or N. caninum in PCV2 unvaccinated pigs compared with vaccinated pigs was observed. Increased serum activities of CK and AST were detected in 71.43% and 100% of only against T. gondii (T+) and 63.64% and 90.91% of only against N. caninum (N+) seropositive sows, respectively, and were significantly higher compared to seronegative animals. T. gondii and N. caninum seropositivity, especially in presumed immunocompromised pigs, and the evidence of muscle damage highlight their importance as a zoonotic pathogen and animal model of human infection, respectively.

scholarly journals Latest developments on Streptococcus suis: an emerging zoonotic pathogen: part 1

2014 ◽  
Vol 9 (4) ◽  
pp. 441-444 ◽  
Author(s):  
Mariela Segura ◽  
Han Zheng ◽  
Astrid de Greeff ◽  
George F Gao ◽  
Daniel Grenier ◽  
...  
Keyword(s):  
Streptococcus Suis ◽  
Zoonotic Pathogen

Cryptic lineage diversity in the zoonotic pathogen Angiostrongylus cantonensis

2017 ◽  
Vol 107 ◽  
pp. 404-414 ◽  
Author(s):  
Sirilak Dusitsittipon ◽  
Charles D. Criscione ◽  
Serge Morand ◽  
Chalit Komalamisra ◽  
Urusa Thaenkham
Keyword(s):  
Angiostrongylus Cantonensis ◽  
Zoonotic Pathogen ◽  
Cryptic Lineage ◽  
Lineage Diversity

scholarly journals Immunohistochemical Detection of Brucella Melitensis Antigens in Cases of Naturally Occurring Abortions in Sheep

2008 ◽  
Vol 20 (6) ◽  
pp. 803-806 ◽  
Author(s):  
Fatma Ilhan ◽  
Zabit Yener
Keyword(s):  
Kupffer Cells ◽  
Brucella Melitensis ◽  
Immunohistochemical Detection ◽  
Zoonotic Pathogen ◽  
Sheep And Goats ◽  
Naturally Occurring ◽  
Formalin Fixed Paraffin ◽  
Formalin Fixed Paraffin Embedded ◽  
Microscopic Studies ◽  
Formalin Fixed

Brucella melitensis, a worldwide zoonotic pathogen, is a significant cause of abortion in sheep and goats in some countries. The present study was carried out to determine, by immunohistochemistry, the presence of B. melitensis antigens in 110 naturally occurring aborted sheep fetuses. Sections of lung, liver, kidney, and spleen of each fetus were stained with immunoperoxidase to detect Brucella antigens. Brucella melitensis antigens were detected in 33 of 110 fetuses (30%). In the 33 positive cases, Brucella antigens were found in lung (25 [22.7%]), liver (21 [19%]), spleen (13 [11.8%]), and kidney (6 [5.4%]). Microscopic studies demonstrated that Brucella antigens were mainly located in the cytoplasm of macrophages and neutrophils of the lung, and in the cytoplasm of macrophages in the portal infiltrates and Kupffer cells of the liver. It was concluded that immunohistochemistry in formalin-fixed, paraffin-embedded tissues is a useful tool for the diagnosis of spontaneous ovine abortion caused by B. melitensis.

scholarly journals Landscape structure affects the prevalence and distribution of a tick-borne zoonotic pathogen

2018 ◽  
Vol 11 (1) ◽  
Author(s):  
Caroline Millins ◽  
Eleanor R. Dickinson ◽  
Petra Isakovic ◽  
Lucy Gilbert ◽  
Agnieszka Wojciechowska ◽  
...  
Keyword(s):  
Landscape Structure ◽  
Zoonotic Pathogen

scholarly journals Subtype analysis of zoonotic pathogen Cryptosporidium skunk genotype

2017 ◽  
Vol 55 ◽  
pp. 20-25 ◽  
Author(s):  
Wenchao Yan ◽  
Kerri Alderisio ◽  
Dawn M. Roellig ◽  
Kristin Elwin ◽  
Rachel M. Chalmers ◽  
...  
Keyword(s):  
Zoonotic Pathogen

Trichinella britovi in the jackal Canis aureus from south-west Iran

2013 ◽  
Vol 88 (4) ◽  
pp. 385-388 ◽  
Author(s):  
H. Mirjalali ◽  
S. Rezaei ◽  
E. Pozio ◽  
S.R. Naddaf ◽  
A. Salahi-Moghaddam ◽  
...  
Keyword(s):  
Parasitic Infection ◽  
Public Health Problem ◽  
Major Public Health Problem ◽  
Molecular Analyses ◽  
Zoonotic Pathogen ◽  
Canis Aureus ◽  
Khuzestan Province ◽  
South West ◽  
Food Borne ◽  
Prevalent Species

AbstractTrichinellosis is an important helminthic food-borne zoonosis, which is caused by nematodes of the genus Trichinella. Although, Trichinella spp. has been detected frequently in Iranian wildlife, this parasitic infection is not considered a major public health problem. This is largely because Islamic codes forbid consumption of pork meat in this country. However, knowledge about this zoonotic pathogen is important because human trichinellosis has been documented in countries where most of the population is Muslim. The aims of the present work were to investigate whether Trichinella spp. was still circulating in wildlife of the Khuzestan Province (south-west Iran) about 30 years after the first investigation, to identify the aetiological agent at the species level by molecular analyses, and to review the literature on Trichinella spp. in animals of Iran. During the winter 2009–2010, muscle samples from 32 road-killed animals (14 dogs and 18 jackals, Canis aureus) were collected. Muscle samples were digested and Trichinella sp. larvae were isolated from two jackals. The Trichinella sp. larvae have been identified as Trichinellabritovi by molecular analyses. These results confirm that T. britovi is the prevalent species circulating in wild animals of Iran.

scholarly journals Meningite Bacteriana Aguda como Doença Ocupacional

2014 ◽  
Vol 27 (4) ◽  
pp. 519
Author(s):  
Diana Seixas ◽  
Ana Lebre ◽  
Pedro Crespo ◽  
Eugénia Ferreira ◽  
José Eduardo Serra ◽  
...  
Keyword(s):  
Occupational Exposure ◽  
Alcohol Consumption ◽  
Occupational Diseases ◽  
Streptococcus Suis ◽  
Acute Bacterial Meningitis ◽  
Streptococcal Infections ◽  
Past Medical History ◽  
Zoonotic Pathogen ◽  
Worldwide Distribution ◽  
Microbiological Examination

Streptococcus suis is a zoonotic pathogen with worldwide distribution, responsible for more than 700 human cases globally reported. This infection affects mostly men, exposed to pig or pork, which leads to its usual classification as an occupational disease. We report a case of acute bacterial meningitis in a 44 years old male. According to his past medical history, the patient had alcohol consumption and worked in a restaurant as a piglet griller. Microbiological examination of blood and CSF revealed S. suis. After 14 days of ceftriaxone the patient fully recovered. The authors review the clinical reports previously described in Portugal. In all of them was possible to identify risk exposition to pork. We alert to this microorganism’s importance in Portugal where it is probably underdiagnosed.<br /><strong>Keywords:</strong> Occupational Diseases; Occupational Exposure; Meningitis, Bacterial; Streptococcal Infections; Streptococcus suis; Portugal.

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