Infections with Dracunculus medinensis frequently occur in the same geographical area as infections with Onchocerca volvulus and Wuchereria bancrofti. This study analysed the significance of D. medinensis infections for the specificity and sensitivity of available tests for antibody-based diagnosis
Evaluation of PCR-based methods for the diagnosis of infection in bancroftian filariasis
β Scribed by Senarath Dissanayake; Abraham Rocha; Joaquim Noroes; Zulma Medeiros; Gerusa Dreyer; Willy F. Piessens
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 700 KB
- Volume
- 94
- Category
- Article
- ISSN
- 0035-9203
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β¦ Synopsis
The value of the polymerase chain reaction (PCR) in the diagnosis of Wuchereria bancrofti infection was evaluated in comparison to microscopical examination of night blood smears, Nuclepore filtration, serology and ultrasonography. No correlation was found between PCR-based deoxyribonucleic acid (DNA) probing and serology. We did not find any evidence of free filarial DNA in either blood plasma or chylocoele fluid. We conclude that the 2 PCR-based techniques evaluated are not more sensitive than Nuclepore filtration for detection of W. bancrofti microfilaraemia, need at least 1 intact microfilaria in the volume of blood used for DNA extraction, and were much inferior to ultrasonography for detection of amicrofilaraemic adult worm carriers.
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Three new and commercially available tools for diagnosis of Wuchereria bancrofii infections based on detection of specific circulating antigens were evaluated and compared in the same group of individuals from a highly endemic village in southern Ghana. The tests were: (1) the ICT card test for seru
Serological diagnosis of filariasis is generally known to be more reliable than detection of microfilariae. The recently developed Og4C3 enzyme-linked immunosorbent assay (ELISA) for detecting Wuchereria bancrofti circulating antigen has been shown to be very sensitive in diagnosing filiariasis usin
## Abstract A realβtime PCR assay was developed for quantitative detection of B19 DNA in clinical serum samples. The assay was carried out using a LightCycler instrument and product formation was monitored continuously with the fluorescent doubleβstranded DNA binding dye SYBR Green I. With an optim