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[Predictive value of electron microscopy studies in virological diagnosis]
1Zentralinstitut für Hygiene, Mikrobiologie und Epidemiologie der DDR.
Zeitschrift Fur Die Gesamte Hygiene Und Ihre Grenzgebiete
|May 1, 1990
Summary
Negative staining transmission electron microscopy is a routine tool for viral diagnosis. Immune electron microscopy enhances sensitivity and specificity for identifying viruses in various samples.
Area of Science:
- Virology
- Microscopy
- Diagnostic techniques
Context:
- Transmission electron microscopy (TEM) with negative staining has been a standard for viral diagnosis for three decades.
- The review discusses preparation methods, applications, and limitations of TEM in rapid viral diagnostics.
- Electron microscopy remains crucial for identifying certain viruses, particularly in fecal samples, where other methods may be insufficient.
Purpose:
- To review the application, advantages, and disadvantages of electron microscopy in rapid viral diagnosis.
- To highlight the role of immune electron microscopy in improving diagnostic accuracy.
- To discuss the utility of ultrahistology for virus identification in biopsy specimens.
Summary:
- Negative staining TEM is a long-established method for viral diagnosis.
- Immune electron microscopy techniques (suspension, immunosorbent, immunogold) significantly improve sensitivity and specificity.
- Rapid embedding techniques enable ultrahistology for virus detection in biopsies.
Impact:
- Electron microscopy remains indispensable for diagnosing certain viral infections, especially from fecal samples.
- Immune electron microscopy offers enhanced accuracy for virus identification.
- Ultrahistology provides a valuable tool for diagnosing viral infections in tissue biopsies.