English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The microscopic methods for detecting Cryptosporidium and Giardia are expensive, and a variable reproducibility and a low recovery are found. Nevertheless, a rigorous technical standardization and a quality control in the recovery testing give support to use them for analyzing the environmental samples. This study determined the sensitivity of ELISA for analyzing Giardia spp. and Cryptosporidium spp. in raw water samples. Also, it was investigated whether this assay could be used as a screening test for detecting Giardia cysts and Cryptosporidium oocysts in raw water samples; and to deduce the potential transmission of giardiasis and cryptosporidiosis from these specimens. The detection limits were high, being 98 cysts and 3.492 oocysts. Of the analyzed environmental samples, 20 % showed ELISA positive for Cryptosporidium spp., and none for Giardia spp.. Therefore, ELISA showed to be unsuitable to be used as screening assay, because in the environmental samples usually occur a lower numbers of oocysts and cysts than those regularly found in infected stool samples, for which these kits have been validated. Furthermore, the dilutions prepared from the stock solutions of cysts and oocysts in distilled water could have resulted in unfavorable reaction conditions, and it has affected the sensitivity of ELISA.

Determinação da sensibilidade do teste de ELISA para pesquisa de Cryptosporidium spp. e Giardia spp. em amostras de águas brutas