Molecular characterization and zoonotic potential of Cryptosporidium spp. and Giardia duodenalis in humans and domestic animals in Heilongjiang Province, China

Abstract Background Cryptosporidiosis and giardiasis are significant parasitic diseases shared between humans and domestic animals. Due to the close contact between humans and domestic animals in rural areas, it is important to consider the potential transmission of zoonotic parasites from infected...

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Main Authors: Yaru Hao, Aiqin Liu, He Li, Yiyang Zhao, Lan Yao, Bo Yang, Weizhe Zhang, Fengkun Yang
Format: Article
Language:English
Published: BMC 2024-03-01
Series:Parasites & Vectors
Subjects:
Online Access:https://doi.org/10.1186/s13071-024-06219-3
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author Yaru Hao
Aiqin Liu
He Li
Yiyang Zhao
Lan Yao
Bo Yang
Weizhe Zhang
Fengkun Yang
author_facet Yaru Hao
Aiqin Liu
He Li
Yiyang Zhao
Lan Yao
Bo Yang
Weizhe Zhang
Fengkun Yang
author_sort Yaru Hao
collection DOAJ
description Abstract Background Cryptosporidiosis and giardiasis are significant parasitic diseases shared between humans and domestic animals. Due to the close contact between humans and domestic animals in rural areas, it is important to consider the potential transmission of zoonotic parasites from infected domestic animals to humans. This investigation aimed to determine the prevalence and molecular characteristics of Cryptosporidium spp. and Giardia duodenalis in domestic animals and villagers. Methods A total of 116 fecal samples from villagers and 686 fecal samples from domestic animals in Heilongjiang Province, China, were analyzed for two parasites using nested polymerase chain reaction (PCR) targeting various genetic loci and DNA sequence analysis of the PCR products. Results By sequence analysis of the SSU rRNA gene, the prevalence of Cryptosporidium in humans was 0.9% (1/116), with one species of C. parvum (n = 1) detected; among domestic animals, the prevalence was 2.6% (18/686), with five species identified: C. suis (n = 7) and C. scrofarum (n = 7) in pigs, C. meleagridis (n = 1) in chickens, C. andersoni (n = 1) in cattle, and C. canis (n = 2) in foxes. C. parvum and C. canis were further subtyped as IIdA19G1 and XXa4 on the basis of gp60 gene. Regarding G. duodenalis, based on the SSU rRNA, bg, gdh, and tpi genes, the prevalence in domestic animals was 5.1% (31/608), with three assemblages identified: A (n = 1) in pigs, D (n = 1) in foxes, and E (n = 27) in geese, cattle, pigs, ducks, and sheep, along with mixed infection of A + E (n = 1) in one pig and B + E (n = 1) in one sheep. No G. duodenalis was detected in humans (0/116). Conclusions The present results show that no overlap of subtypes between animals and villagers was found in Cryptosporidium spp. and G. duodenalis, indicating a minor role of domestic animals in infecting humans in this population. However, the presence of zoonotic protozoa in domestic animals highlights the need for special attention to high-risk individuals during close contact with domestic animals. Graphical Abstract
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spelling doaj.art-ee51ffb2348849048a495acb1b4f76bd2024-04-14T11:09:08ZengBMCParasites & Vectors1756-33052024-03-0117111410.1186/s13071-024-06219-3Molecular characterization and zoonotic potential of Cryptosporidium spp. and Giardia duodenalis in humans and domestic animals in Heilongjiang Province, ChinaYaru Hao0Aiqin Liu1He Li2Yiyang Zhao3Lan Yao4Bo Yang5Weizhe Zhang6Fengkun Yang7Department of Parasitology, Harbin Medical UniversityDepartment of Parasitology, Harbin Medical UniversityDepartment of Parasitology, Harbin Medical UniversityDepartment of Parasitology, Harbin Medical UniversityDepartment of Parasitology, Harbin Medical UniversityDepartment of Parasitology, Harbin Medical UniversityDepartment of Parasitology, Harbin Medical UniversityDepartment of Parasitology, Harbin Medical UniversityAbstract Background Cryptosporidiosis and giardiasis are significant parasitic diseases shared between humans and domestic animals. Due to the close contact between humans and domestic animals in rural areas, it is important to consider the potential transmission of zoonotic parasites from infected domestic animals to humans. This investigation aimed to determine the prevalence and molecular characteristics of Cryptosporidium spp. and Giardia duodenalis in domestic animals and villagers. Methods A total of 116 fecal samples from villagers and 686 fecal samples from domestic animals in Heilongjiang Province, China, were analyzed for two parasites using nested polymerase chain reaction (PCR) targeting various genetic loci and DNA sequence analysis of the PCR products. Results By sequence analysis of the SSU rRNA gene, the prevalence of Cryptosporidium in humans was 0.9% (1/116), with one species of C. parvum (n = 1) detected; among domestic animals, the prevalence was 2.6% (18/686), with five species identified: C. suis (n = 7) and C. scrofarum (n = 7) in pigs, C. meleagridis (n = 1) in chickens, C. andersoni (n = 1) in cattle, and C. canis (n = 2) in foxes. C. parvum and C. canis were further subtyped as IIdA19G1 and XXa4 on the basis of gp60 gene. Regarding G. duodenalis, based on the SSU rRNA, bg, gdh, and tpi genes, the prevalence in domestic animals was 5.1% (31/608), with three assemblages identified: A (n = 1) in pigs, D (n = 1) in foxes, and E (n = 27) in geese, cattle, pigs, ducks, and sheep, along with mixed infection of A + E (n = 1) in one pig and B + E (n = 1) in one sheep. No G. duodenalis was detected in humans (0/116). Conclusions The present results show that no overlap of subtypes between animals and villagers was found in Cryptosporidium spp. and G. duodenalis, indicating a minor role of domestic animals in infecting humans in this population. However, the presence of zoonotic protozoa in domestic animals highlights the need for special attention to high-risk individuals during close contact with domestic animals. Graphical Abstracthttps://doi.org/10.1186/s13071-024-06219-3Cryptosporidium spp.Giardia duodenalisEpidemiologyDomestic animalsHumans
spellingShingle Yaru Hao
Aiqin Liu
He Li
Yiyang Zhao
Lan Yao
Bo Yang
Weizhe Zhang
Fengkun Yang
Molecular characterization and zoonotic potential of Cryptosporidium spp. and Giardia duodenalis in humans and domestic animals in Heilongjiang Province, China
Parasites & Vectors
Cryptosporidium spp.
Giardia duodenalis
Epidemiology
Domestic animals
Humans
title Molecular characterization and zoonotic potential of Cryptosporidium spp. and Giardia duodenalis in humans and domestic animals in Heilongjiang Province, China
title_full Molecular characterization and zoonotic potential of Cryptosporidium spp. and Giardia duodenalis in humans and domestic animals in Heilongjiang Province, China
title_fullStr Molecular characterization and zoonotic potential of Cryptosporidium spp. and Giardia duodenalis in humans and domestic animals in Heilongjiang Province, China
title_full_unstemmed Molecular characterization and zoonotic potential of Cryptosporidium spp. and Giardia duodenalis in humans and domestic animals in Heilongjiang Province, China
title_short Molecular characterization and zoonotic potential of Cryptosporidium spp. and Giardia duodenalis in humans and domestic animals in Heilongjiang Province, China
title_sort molecular characterization and zoonotic potential of cryptosporidium spp and giardia duodenalis in humans and domestic animals in heilongjiang province china
topic Cryptosporidium spp.
Giardia duodenalis
Epidemiology
Domestic animals
Humans
url https://doi.org/10.1186/s13071-024-06219-3
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