scholarly journals Enhanced Asymptomatic Systemic Infection Caused by Plesiomonas shigelloides in a Captive Gray Wolf (Canis lupus)

2021 ◽  
Vol 8 (11) ◽  
pp. 280
Author(s):  
Kyootae Kim ◽  
Haeseung Lee ◽  
Dongmi Kwak
Keyword(s):  
Canis Lupus ◽  
Rare Case ◽  
Systemic Infection ◽  
Liver Parenchyma ◽  
Nucleotide Sequencing ◽  
Gray Wolf ◽  
Air Bubbles ◽  
Plesiomonas Shigelloides ◽  
Systemic Infections ◽  
Cultured Bacteria

A 7-year-old male gray wolf was found dead at a zoo during exhibition. To determine the cause of death, histological and gross necropsy diagnoses and a molecular analysis were performed. The gross necropsy revealed a swollen abdomen, hemorrhagic exudates around the mouth, splenomegaly, a discolored liver, a congested kidney, hemorrhagic ascites, and dark gray-colored membranes and air bubbles in the fundus of the stomach. Rod-shaped bacteria were found in the liver parenchyma and hemorrhagic ascites using Giemsa staining. The nucleotide sequencing of the cultured bacteria identified the causative agent as Plesiomonas shigelloides, which is rarely responsible for systemic infections. This study describes a rare case and the first reported systemic gastrointestinal infection due to P. shigelloides in a zoo animal.

scholarly journals A rare case of Pseudomonas aeruginosa bacteremia in a newborn with 58 perforations in the small intestine

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yuanyuan Xu ◽  
Danqun Jin ◽  
Huan Ye ◽  
Youfeng Liang
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Small Intestine ◽  
Early Detection ◽  
Abdominal Surgery ◽  
Rare Case ◽  
Venous Blood ◽  
Case Presentation ◽  
Systemic Infections ◽  
Emergency Abdominal Surgery ◽  
Timely Treatment

Abstract Background Community-acquired infections of Pseudomonas aeruginosa (P. aeruginosa) occur very rarely. Case presentation P. aeruginos was detected in cultures of venous blood and peritoneal exudate of a newborn with 58 perforations in the small intestine. Intravenous administration of imipenem cilastratin sodium and emergency abdominal surgery were performed. The patient fully recovered and was discharged 17 days after the operation. Conclusions Mild symptoms of systemic infections in newborns may delay the diagnosis. Early detection and timely treatment are the key to improved prognosis.

scholarly journals Genome evolution and the emergence of pathogenicity in avian Escherichia coli

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Leonardos Mageiros ◽  
Guillaume Méric ◽  
Sion C. Bayliss ◽  
Johan Pensar ◽  
Ben Pascoe ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Association Studies ◽  
Virulence Gene ◽  
Systemic Infection ◽  
Disease Status ◽  
Evolutionary Mechanisms ◽  
Sustainable Food ◽  
E Coli ◽  
Common Birds ◽  
Systemic Infections

AbstractChickens are the most common birds on Earth and colibacillosis is among the most common diseases affecting them. This major threat to animal welfare and safe sustainable food production is difficult to combat because the etiological agent, avian pathogenic Escherichia coli (APEC), emerges from ubiquitous commensal gut bacteria, with no single virulence gene present in all disease-causing isolates. Here, we address the underlying evolutionary mechanisms of extraintestinal spread and systemic infection in poultry. Combining population scale comparative genomics and pangenome-wide association studies, we compare E. coli from commensal carriage and systemic infections. We identify phylogroup-specific and species-wide genetic elements that are enriched in APEC, including pathogenicity-associated variation in 143 genes that have diverse functions, including genes involved in metabolism, lipopolysaccharide synthesis, heat shock response, antimicrobial resistance and toxicity. We find that horizontal gene transfer spreads pathogenicity elements, allowing divergent clones to cause infection. Finally, a Random Forest model prediction of disease status (carriage vs. disease) identifies pathogenic strains in the emergent ST-117 poultry-associated lineage with 73% accuracy, demonstrating the potential for early identification of emergent APEC in healthy flocks.

scholarly journals Political affiliation predicts public attitudes toward gray wolf ( Canis lupus ) conservation and management

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Lily M. Eeden ◽  
Sergey Rabotyagov ◽  
Morgan Kather ◽  
Carol Bogezi ◽  
Aaron J. Wirsing ◽  
...  
Keyword(s):  
Canis Lupus ◽  
Public Attitudes ◽  
Political Affiliation ◽  
Gray Wolf ◽  
Conservation And Management

scholarly journals A multicenter evaluation of viral bloodstream detections in children presenting to the Emergency Department with suspected systemic infection

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Christina A. Rostad ◽  
Neena Kanwar ◽  
Jumi Yi ◽  
Claudia R. Morris ◽  
Jennifer Dien Bard ◽  
...  
Keyword(s):  
Emergency Department ◽  
Whole Blood ◽  
Bacterial Infections ◽  
Viral Infections ◽  
Systemic Infection ◽  
Common Symptom ◽  
Predictive Values ◽  
Healthcare Facilities ◽  
Tract Infections ◽  
Systemic Infections

Abstract Background Fever is a common symptom in children presenting to the Emergency Department (ED). We aimed to describe the epidemiology of systemic viral infections and their predictive values for excluding serious bacterial infections (SBIs), including bacteremia, meningitis and urinary tract infections (UTIs) in children presenting to the ED with suspected systemic infections. Methods We enrolled children who presented to the ED with suspected systemic infections who had blood cultures obtained at seven healthcare facilities. Whole blood specimens were analyzed by an experimental multiplexed PCR test for 7 viruses. Demographic and laboratory results were abstracted. Results Of the 1114 subjects enrolled, 245 viruses were detected in 224 (20.1%) subjects. Bacteremia, meningitis and UTI frequency in viral bloodstream-positive patients was 1.3, 0 and 10.1% compared to 2.9, 1.3 and 9.7% in viral bloodstream-negative patients respectively. Although viral bloodstream detections had a high negative predictive value for bacteremia or meningitis (NPV = 98.7%), the frequency of UTIs among these subjects remained appreciable (9/89, 10.1%) (NPV = 89.9%). Screening urinalyses were positive for leukocyte esterase in 8/9 (88.9%) of these subjects, improving the ability to distinguish UTI. Conclusions Viral bloodstream detections were common in children presenting to the ED with suspected systemic infections. Although overall frequencies of SBIs among subjects with and without viral bloodstream detections did not differ significantly, combining whole blood viral testing with urinalysis provided high NPV for excluding SBI.

scholarly journals Wolf, Canis lupus, Pup Mortality: Interspecific Predation or Non-Parental Infanticide?

2011 ◽  
Vol 125 (2) ◽  
pp. 158 ◽  
Author(s):  
A. David M. Latham ◽  
Stan Boutin
Keyword(s):  
Canis Lupus ◽  
Resource Competition ◽  
The Other ◽  
Gray Wolf ◽  
Gps Collar ◽  
Competition Hypothesis ◽  
Interspecific Predation ◽  
Pup Mortality ◽  
First Time

A breeding male Gray Wolf, Canis lupus, equipped with a GPS collar was documented going to the den site of another Gray Wolf pack. This trip was coincident with an attack on the den of the other pack and the occurrence of a dead and partially consumed Gray Wolf pup at the same location. We present two possible explanations - interspecific predation and non-parental infanticide - to account for this observation. Because the Gray Wolf with the GPS collar and his mate were first-time breeders and were attempting to establish a territory space of their own, we speculate that, based on the available evidence, this observation most likely represents a case of non-parental infanticide that fits the predictions of the resource competition hypothesis.

Oocyte and ovary morphological observation of gray wolf (Canis lupus)

2010 ◽  
Vol 60 (3) ◽  
pp. 249-257
Author(s):  
Xu-Guang Liu ◽  
Zhi-Zhong Zhang ◽  
Yun-Hai Zhang ◽  
Yun-Sheng Li ◽  
Fu-Gui Fang ◽  
...  
Keyword(s):  
Histological Examination ◽  
Reproductive System ◽  
Canis Lupus ◽  
Smooth Surface ◽  
Uterine Horn ◽  
Left Ovary ◽  
Morphological Observation ◽  
Gray Wolf ◽  
Antral Follicles ◽  
The Right

AbstractThe present study was carried out to describe the reproductive system of a single adult female wolf, including the uterine horns, cervix, ovaries and follicles. The cumulus oocytes complexes (COCs) and oocytes were also examined. The results showed that the size of each ovary was about 9 × 6 mm with an average of weight of 461.3 mg. The uterus was Y-shaped, and the length of each uterine horn was 14 cm. The distance from the cervix to the bifurcation of the uterine horns was also 14 cm. The left ovary had two large follicles on the surface with a diameter more than 4 mm, while the right ovary had no protuberant follicles. The ovaries were covered with a lot of fat, and were well developed. The COCs derived from the antral follicles were dark, and the nuded oocytes had a dark cytoplasm. The diameter of the oocytes removed from the antral follicles was 116.8 μm on average. The ovaries had a smooth surface and all the follicles were under the surface except for two big follicles on the left ovary. Histological examination of the ovaries by haematoxylin and eosin staining demonstrated that the primordial, primary, preantral and antral follicles were scattered in the cortex, the medulla was abundant with blood vessels. This study preliminarily reveals the features of the wolf reproductive system and the structure of its oocytes and ovaries, which might be indicative for further study and the protection of the species.

Isolation and RFLP genotyping of Toxoplasma gondii from the gray wolf (Canis lupus)

2013 ◽  
Vol 197 (3-4) ◽  
pp. 685-690 ◽  
Author(s):  
J.P. Dubey ◽  
S. Choudhary ◽  
L.R. Ferreira ◽  
O.C.H. Kwok ◽  
E. Butler ◽  
...  
Keyword(s):  
Toxoplasma Gondii ◽  
Canis Lupus ◽  
Gray Wolf
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