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Related Concept Videos

Staphylococcal Skin Infections01:29

Staphylococcal Skin Infections

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Staphylococcus aureus is a Gram-positive coccus that resides harmlessly on the skin and mucous membranes of healthy individuals. When the skin barrier is breached, it can shift from a commensal to an opportunistic pathogen. This transition is facilitated by surface adhesins, such as clumping factor B and S. aureus surface protein G (SasG), which bind to structural proteins, including loricrin and cytokeratin, in the damaged epidermis. Protein A, another key factor, binds the Fc region of...
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Endocarditis I: Introduction01:25

Endocarditis I: Introduction

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Introduction:Endocarditis is the infection of the endocardium, the inner lining of the heart and its valves. When the heart muscle is involved, the condition is termed myocarditis, while an infection of the outer lining is called pericarditis. Infective endocarditis (IE) primarily affects the endocardium, where pathogens adhere to the valves or lining, forming vegetation that can lead to severe complications. Infective endocarditis occurs when microorganisms, usually bacteria from other body...
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Clinical Significance of Antibiotic Resistance01:25

Clinical Significance of Antibiotic Resistance

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Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within...
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Endocarditis II: Clinical Features of Infective Endocarditis01:25

Endocarditis II: Clinical Features of Infective Endocarditis

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Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...
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Endocarditis III: Medical Management01:18

Endocarditis III: Medical Management

325
Infective endocarditis management involves a multifaceted approach encompassing infection prevention, lifestyle modifications, pharmacological therapy, and surgical management.Infection Prevention:Hand Hygiene: Thorough handwashing is crucial to prevent the spread of infection. Hand hygiene should be performed regularly, especially before and after using the restroom.Oral Hygiene: Good oral hygiene is essential. It includes brushing teeth immediately after waking up and before bed, flossing...
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Endocarditis IV: Nursing Management01:29

Endocarditis IV: Nursing Management

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Infective endocarditis (IE) is a chronic infection of the heart's endocardium, primarily affecting the heart valves. A detailed nursing assessment for a patient with IE involves collecting subjective and objective data to ensure an accurate diagnosis and timely intervention.Subjective DataThe nurse gathers information about the patient's symptoms and complaints during the subjective assessment. Patients with infective endocarditis often report non-specific symptoms that can mimic other...
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Related Experiment Video

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Experimental Endocarditis Model of Methicillin Resistant Staphylococcus aureus MRSA in Rat
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Staphylococcus simulans associated with endocarditis in broiler chickens.

D Stępień-Pyśniak1, J Wilczyński2, A Marek1

  • 1a Department of Veterinary Prevention and Avian Diseases , Institute of Biological Bases of Animal Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin , Lublin , Poland.

Avian Pathology : Journal of the W.V.P.A
|June 23, 2016
PubMed
Summary
This summary is machine-generated.

Coagulase-negative Staphylococcus simulans caused endocarditis in broiler chickens, leading to increased mortality and lameness. The study identified bacterial factors contributing to this poultry disease.

Keywords:
Staphylococcus simulans infectionbroiler chickenscoagulase-negative staphylococciendocarditispoultry disease

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Area of Science:

  • Veterinary Pathology
  • Avian Medicine
  • Bacterial Pathogenesis

Background:

  • Endocarditis is a serious cardiac condition affecting various animal species.
  • Understanding the causative agents and pathological mechanisms in poultry is crucial for flock health management.

Observation:

  • A single broiler flock experienced increased mortality and lameness.
  • Post-mortem examinations revealed characteristic vegetative lesions on the atrioventricular valve, liver necrosis, and femoral head necrosis.

Findings:

  • Coagulase-negative Staphylococcus simulans was strongly associated with endocarditis in affected broiler chickens.
  • Advanced identification methods confirmed S. simulans, which exhibited methicillin resistance, vancomycin sensitivity, slime production, and protease activity.

Implications:

  • This finding highlights S. simulans as a significant pathogen in broiler endocarditis.
  • Knowledge of its resistance and virulence factors can inform treatment strategies and biosecurity measures in poultry farming.