Universität zu Köln

Lass, Anna, Kontogeorgos, Ioannis, Ma, Liqing, Zhang, Xueyong, Li, Xiuping and Karanis, Panagiotis (2022). Investigation of Toxoplasma gondii in wastewater and surface water in the Qinghai-Tibet Plateau, China using real-time PCR and multilocus genotyping. Sci Rep, 12 (1). BERLIN: NATURE PORTFOLIO. ISSN 2045-2322

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Abstract

Toxoplasma gondii is a protozoan parasite, causing one of the most prevalent parasitic infections in the world. In the present study water sources of the Qinghai-Tibet Plateau (QTP), China, where the hygienic infrastructure is still developing, were investigated. A total of 214 water samples of 10 L volume, were collected from wastewater treatment plants (WWTPs), a slaughterhouse and rivers. The samples were filtered and then analysed using real-time PCR and multilocus genotyping. T. gondii DNA was found in four (1.9%) samples representing T. gondii type I; in one of them T. gondii-like oocysts were also confirmed microscopically. The approximate level of contamination of positive samples ranged between 30 and 2300 T. gondii sporozoites. The results of this study confirmed that T. gondii is present in wastewater in the greater metropolitan area of Xining and a neighbouring county. Contamination of wastewater at this level constitutes rather a moderate source of Toxoplasma infections in humans and animals. It suggests, however, a link between environmental exposure of animals, meat processing facilities and WWTPs. To our knowledge, this is the first investigation describing T. gondii detection in wastewater and environmental water samples collected from the territory of P.R. China using sensitive molecular tools.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Lass, Anna UNSPECIFIED UNSPECIFIED UNSPECIFIED Kontogeorgos, Ioannis UNSPECIFIED UNSPECIFIED UNSPECIFIED Ma, Liqing UNSPECIFIED UNSPECIFIED UNSPECIFIED Zhang, Xueyong UNSPECIFIED UNSPECIFIED UNSPECIFIED Li, Xiuping UNSPECIFIED UNSPECIFIED UNSPECIFIED Karanis, Panagiotis UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-684415
DOI:	10.1038/s41598-022-09166-0
Journal or Publication Title:	Sci Rep
Volume:	12
Number:	1
Date:	2022
Publisher:	NATURE PORTFOLIO
Place of Publication:	BERLIN
ISSN:	2045-2322
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MEDIATED ISOTHERMAL AMPLIFICATION; GENETIC-CHARACTERIZATION; MOLECULAR-DETECTION; SOIL CONTAMINATION; 1ST DETECTION; OOCYSTS; CRYPTOSPORIDIUM; TRANSMISSION; SAMPLES; INFECTIONS Multiple languages Multidisciplinary Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/68441