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EPA Method 1615. Measurement of Enterovirus and Norovirus Occurrence in Water by Culture and RT-qPCR. II. Total Culturable Virus Assay
Published on: September 11, 2016
Enteroviruses and Parechoviruses
1Department of Pathology, Texas Children's Hospital, Houston, TX 77030.
Insights
Enteroviruses and human parechoviruses cause prevalent infections, especially in neonates. Molecular diagnostics are key for identifying these viruses, crucial for patient prognosis and treatment.
Area of Science:
- Virology
- Infectious Diseases
- Neonatal Medicine
Background:
- Enteroviruses and human parechoviruses are common viral pathogens with significant impact, particularly in neonates.
- B-cell immunodeficiencies increase risk for severe, often fatal, enteroviral meningoencephalitis.
- Transplant recipients and cancer patients face risks of severe enterovirus infections, including disseminated disease.
Purpose of the Study:
- To highlight the prevalence and clinical significance of enterovirus and human parechovirus infections.
- To emphasize the diagnostic challenges and importance of accurate laboratory identification.
- To underscore the role of diagnostics in patient management and prognosis.
Main Methods:
- Review of current diagnostic approaches for enterovirus and human parechovirus.
- Discussion of molecular diagnostic techniques, including nucleic acid detection.
- Analysis of limitations in routine diagnostic methods.
Main Results:
- Molecular diagnostics are the primary method for detecting enterovirus and human parechovirus.
- Standard enterovirus nucleic acid tests do not detect human parechoviruses.
- Accurate laboratory diagnosis is critical for patient outcomes.
Conclusions:
- Effective management of enterovirus and human parechovirus infections relies on precise laboratory diagnosis.
- Distinguishing between these viral infections is essential for appropriate clinical care.
- Advancements in molecular diagnostics are vital for improving patient prognosis.
Abstract:
Infections with enteroviruses and human parechoviruses are highly prevalent, particularly in neonates, where they may cause substantial morbidity and mortality. Individuals with B-cell-related immunodeficiencies are at risk for severe enteroviral infections, usually a chronic and fatal meningoencephalitis. In transplant recipients and patients with malignancy, enterovirus infections typically involve the respiratory tract, but cases of severe, disseminated infection have been described. The mainstay of diagnosis for enterovirus and human parechovirus infections involves the use of molecular diagnostic techniques. However, routine nucleic acid-detection methods for enteroviruses will not detect human parechoviruses. Laboratory diagnosis of these viral infections is important in determining a patient's prognosis and guiding clinical management.
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