Evidence map›Paper›PMID 33415392›Full record

ArticleParasitology research2021

Occurrence of Cryptosporidium and Giardia in wild birds from Qinghai Lake on the Qinghai-Tibetan Plateau, China.

Yingna Jian, Xueyong Zhang, Xiuping Li, Chad Schou, Iris Charalambidou, Liqing Ma, Panagiotis Karanis

Abstract read
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In one paragraph

Article in Parasitology research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Synthesis ofVeterinary sciences · 2025
    Review
  4. Article
  5. Article
  6. First report on the molecular detection ofInternational journal for parasitology. Parasites and wildlife · 2023
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. A survey ofPeerJ · 2022
    Article
  12. Zoonotic giardiasis: an update.Parasitology research · 2021
    Review
  13. Review
  14. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 3 countries.

Yingna JianQinghai Academy of Animal Sciences and Veterinary Medicine, Qinghai University, State Key Laboratory of Plateau Ecology and Agriculture Qinghai University, Center for Biomedicine and Infectious Diseases, Xining, 810016, People's Republic of China.
Xueyong ZhangQinghai Academy of Animal Sciences and Veterinary Medicine, Qinghai University, State Key Laboratory of Plateau Ecology and Agriculture Qinghai University, Center for Biomedicine and Infectious Diseases, Xining, 810016, People's Republic of China.
Xiuping LiQinghai Academy of Animal Sciences and Veterinary Medicine, Qinghai University, State Key Laboratory of Plateau Ecology and Agriculture Qinghai University, Center for Biomedicine and Infectious Diseases, Xining, 810016, People's Republic of China.
Chad SchouMedical Faculty and University Hospital Cologne, University of Cologne, Cologne, Germany.
Iris CharalambidouDepartment of Life and Health Sciences, School of Sciences and Engineering, University of Nicosia, 2417, Nicosia, Cyprus.
Liqing MaQinghai Academy of Animal Sciences and Veterinary Medicine, Qinghai University, State Key Laboratory of Plateau Ecology and Agriculture Qinghai University, Center for Biomedicine and Infectious Diseases, Xining, 810016, People's Republic of China.
Panagiotis KaranisQinghai Academy of Animal Sciences and Veterinary Medicine, Qinghai University, State Key Laboratory of Plateau Ecology and Agriculture Qinghai University, Center for Biomedicine and Infectious Diseases, Xining, 810016, People's Republic of China. karanis.p@unic.ac.cy.ORCID http://orcid.org/0000-0002-0733-0470
Qinghai University · CNUniversity of Cologne · DEUniversity of Nicosia · CY

Funding

China government NO. WQ2013630172
6 · The paper itself

Abstract

Cryptosporidium and Giardia are important intestinal zoonotic pathogens that can infect various hosts and cause diarrhoeal diseases. There are few reports of the epidemiological prevalence and molecular characterization of Cryptosporidium and Giardia in wild birds around Qinghai Lake and in the surrounding areas on the Qinghai-Tibetan Plateau, Northwest China. Therefore, the aim of this study was to determine the Cryptosporidium spp. and Giardia duodenalis genotypes and their epidemiological prevalence in wild birds by PCR amplification. To our knowledge, this is the first report of a variety of Cryptosporidium spp. and G. duodenalis infections in wild birds from that area, with overall prevalence rates of 8.98% (61/679) and 3.39% (23/679), respectively. Furthermore, PCR sequencing confirmed the presence of Cryptosporidium baileyi (n = 3), Cryptosporidium parvum (n = 58), and G. duodenalis assemblage B (n = 19) and E (n = 4) in wild birds from the areas around Qinghai Lake. The results of the present study demonstrated the wide distribution of Cryptosporidium and Giardia among wild birds, which has potential public health significance. Moreover, the study findings also provided useful molecular epidemiological data for monitoring and investigating the two parasitic protozoa in wild animals and surrounding environments.

Indexed as

AnimalsAnimals, WildBird DiseasesBirdsCryptosporidiosisCryptosporidiumDiarrheaGenotypeGiardia lambliaGiardiasisLakesMolecular EpidemiologyPolymerase Chain ReactionPrevalenceTibetCryptosporidiumGiardiaMolecular characterizationPrevalenceQinghai Lake (China)Wild birds

Identifiers

PMID33415392
OpenAlexW3121054707

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.