Abstract
A new disposable plastic tube device and technique for ovum and parasite concentration, with upper and lower chambers separated by a fine screen, was compared with the standard gauze and open-funnel filtration technique as well as with the technique of direct smearing with an acid-fast stain. The new concentrator was distinctly superior to gauze filtration in concentrating Cryptosporidium sp. oocysts. Processing time was reduced. The new technique was less messy and as a closed system was considered to be much safer than gauze filtration.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Garcia L. S., Shimizu R. Comparison of clinical results for the use of ethyl acetate and diethyl ether in the formalin-ether sedimentation technique performed on polyvinyl alcohol-preserved specimens. J Clin Microbiol. 1981 Apr;13(4):709–713. doi: 10.1128/jcm.13.4.709-713.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Henriksen S. A., Pohlenz J. F. Staining of cryptosporidia by a modified Ziehl-Neelsen technique. Acta Vet Scand. 1981;22(3-4):594–596. doi: 10.1186/BF03548684. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Zierdt W. S. A simple device for concentration of parasite eggs, larvae, and protozoa. Am J Clin Pathol. 1978 Jul;70(1):89–93. doi: 10.1093/ajcp/70.1.89. [DOI] [PubMed] [Google Scholar]