Contribution of hospitals to the occurrence of enteric protists in urban wastewater.
Parasitol Res
; 119(9): 3033-3040, 2020 Sep.
Article
en En
| MEDLINE
| ID: mdl-32748039
ABSTRACT
We assessed the potential contribution of hospitals to contaminations of wastewater by enteric protists, including Cryptosporidium spp., Giardia duodenalis, and Enterocytozoon bieneusi in raw wastewater. Wastewater samples were collected from storage tanks in two hospitals and one associated wastewater treatment plant in Shanghai, China, from March to November 2009. Enteric pathogens were detected and identified using PCR and DNA sequencing techniques. Among a total of 164 samples analyzed, 31 (18.9%), 45 (27.4%), and 122 (74.4%) were positive for Cryptosporidium spp., G. duodenalis, and E. bieneusi, respectively. Altogether, three Cryptosporidium species, four G. duodenalis assemblages, and 12 E. bieneusi genotypes were detected. Cryptosporidium hominis, G. duodenalis sub-assemblage AII, and E. bieneusi genotype D were the dominant ones in wastewater from both hospitals and the wastewater treatment plant. A similar distribution in genotypes of enteric pathogens was seen between samples from hospitals and the wastewater treatment plant, suggesting that humans are one of the major sources for these pathogens and hospitals are important contributors of enteric parasites in urban wastewater. Data from this study might be useful in the formulation of preventive measures against environmental contamination of waterborne pathogens.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Infección Hospitalaria
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Giardia lamblia
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Cryptosporidium
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Enterocytozoon
/
Aguas Residuales
Límite:
Humans
País/Región como asunto:
Asia
Idioma:
En
Revista:
Parasitol Res
Asunto de la revista:
PARASITOLOGIA
Año:
2020
Tipo del documento:
Article
País de afiliación:
China