An evaluation of molecular diagnostic tools for the detection and differentiation of human-pathogenic Cryptosporidium spp.

被引:39
作者
Jiang, JL [1 ]
Xiao, LH [1 ]
机构
[1] Ctr Dis Control & Prevent, Div Parasit Dis, Natl Ctr Infect Dis, Atlanta, GA 30341 USA
关键词
D O I
10.1111/j.1550-7408.2003.tb00623.x
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
The performance of 10 commonly used genotyping tools in the detection and differentiation of 7 human-pathogenic Cryptosporidium spp. (C. hominis, C. parvum, C. meleagridis, C. felis, C. canis, C. muris and Cryptosporidium pig genotype 1) was evaluated. All 3 SU rRNA gene-based tools could amplify the DNA of 7 Cryptosporidium spp. efficiently. However. the tools based on the antigens TRAP-C 1, TRAP-C2 and COWP genes, the housekeeping genes HSP70 and DHFR, or a genomic sequence, failed to detect the DNA of C. felis, C. canis, Cryptosporidium pig genotype I, and C. muris. With the exception of I tool based on the TRAP-C2 gene, the PCR-RFLP or the PCR sequencing tools evaluated in this study could differentiate C. hominis, C. parvum and C. meleagridis from each other, and 2 SSU rRNA gene-based tools could differentiate all 7 Cryptosporidium spp. Thus, a thorough understanding of the strength and weakness of each technique is needed when using molecular diagnostic tool in epidemiological investigations of human cryptosporidiosis.
引用
收藏
页码:542 / 547
页数:6
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