ArticleScientific reports2021
Genetic characterization of nodular worm infections in Asian Apes.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.
- Understanding zoonotic pathogens and risk factors from wildlife in Southeast Asia: a systematic literature review.The veterinary quarterly · 2025Pooled it
- Impact of group size and habitat disturbance on parasitic infection in free-ranging proboscis monkeys.International journal for parasitology. Parasites and wildlife · 2026Article
- Molecular taxonomic characterisation ofFrontiers in parasitology · 2026Article
- Effect of selected Indonesian plants on Giardia intestinalis in an experimental in vitro model.BMC complementary medicine and therapies · 2025Article
- Novel insight into the genetic diversity of strongylid nematodes infecting South-East and East Asian primates.Parasitology · 2024Article
Corrections and comments
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Authors and funding
9 authors at 8 institutions in 6 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Parasitic nematodes of Oesophagostomum spp., commonly known, as 'nodular worms' are emerging as the most widely distributed and prevalent zoonotic nematodes. Oesophagostomum infections are well documented in African non-human primates; however, the taxonomy, distribution and transmission of Oesophagostomum in Asian non-human primates are not adequately studied. To better understand which Oesophagostomum species infect Asian non-human primates and determine their phylogeny we analysed 55 faecal samples from 50 orangutan and 5 gibbon individuals from Borneo and Sumatra. Both microscopy and molecular results revealed that semi-wild animals had higher Oesophagostomum infection prevalence than free ranging animals. Based on sequence genotyping analysis targeting the Internal transcribed spacer 2 of rDNA, we report for the first time the presence of O. aculeatum in Sumatran apes. Population genetic analysis shows that there is significant genetic differentiation between Bornean and Sumatran O. aculeatum populations. Our results clearly reveal that O. aculeatum in free-ranging animals have a higher genetic variation than those in semi-wild animals, demonstrating that O. aculeatum is circulating naturally in wildlife and zoonotic transmission is possible. Further studies should be conducted to better understand the epidemiology and dynamics of Oesophagostomum transmission between humans, non-human primates and other wild species and livestock in Southeast Asia.
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Registered trials
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