Epidemiological and genetic data supporting the transmission of ancylostoma ceylanicum among human and domestic animals

Ngui, R.; Lim, Y.A.L.; Traub, R.; Mahmud, R.; Mistam, M.S. (2012) Epidemiological and genetic data supporting the transmission of ancylostoma ceylanicum among human and domestic animals. Plos Neglected Tropical Diseases, 6 (2). ISSN 1935-2727

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    Abstract

    Background: Currently, information on species-specific hookworm infection is unavailable in Malaysia and is restricted worldwide due to limited application of molecular diagnostic tools. Given the importance of accurate identification of hookworms, this study was conducted as part of an ongoing molecular epidemiological investigation aimed at providing the first documented data on species-specific hookworm infection, associated risk factors and the role of domestic animals as reservoirs for hookworm infections in endemic communities of Malaysia. Methods/Findings: A total of 634 human and 105 domestic canine and feline fecal samples were randomly collected. The overall prevalence of hookworm in humans and animals determined via microscopy was 9.1 (95 CI = 7.0-11.7) and 61.9 (95 CI = 51.2-71.2), respectively. Multivariate analysis indicated that participants without the provision of proper latrine systems (OR = 3.5; 95 CI = 1.53-8.00; p = 0.003), walking barefooted (OR = 5.6; 95 CI = 2.91-10.73; p < 0.001) and in close contact with pets or livestock (OR = 2.9; 95 CI = 1.19-7.15; p = 0.009) were more likely to be infected with hookworms. Molecular analysis revealed that while most hookworm-positive individuals were infected with Necator americanus, Ancylostoma ceylanicum constituted 12.8 of single infections and 10.6 mixed infections with N. americanus. As for cats and dogs, 52.0 were positive for A. ceylanicum, 46.0 for Ancylostoma caninum and 2.0 for Ancylostoma braziliense and all were single infections. This present study provided evidence based on the combination of epidemiological, conventional diagnostic and molecular tools that A. ceylanicum infection is common and that its transmission dynamic in endemic areas in Malaysia is heightened by the close contact of human and domestic animal (i.e., dogs and cats) populations.

    Item Type: Article
    Creators:
    1. Ngui, R.
    2. Lim, Y.A.L.(Department of Parasitology, Faculty of Medicine University of Malaya, 50603 Kuala Lumpur, MALAYSIA)
    3. Traub, R.
    4. Mahmud, R.
    5. Mistam, M.S.
    Journal or Publication Title: Plos Neglected Tropical Diseases
    Additional Information: Ngui, Romano Lim, Yvonne A. L. Traub, Rebecca Mahmud, Rohela Mistam, Mohd Sani
    Uncontrolled Keywords: Adolescent Adult Ancylostoma/*classification/genetics/*isolation & purification Ancylostomiasis/parasitology/*transmission/*veterinary Animals Animals, Domestic Cat Diseases/parasitology/transmission Cats Child Child, Preschool Disease Reservoirs/*parasitology Dog Diseases/parasitology/transmission Dogs Endemic Diseases Feces/parasitology Humans Malaysia/epidemiology Male Molecular Epidemiology Molecular Sequence Data Sequence Analysis, DNA Young Adult Zoonoses/parasitology/*transmission
    Subjects: R Medicine
    Divisions: Faculty of Medicine > School of Medicine
    Depositing User: Ms Johana Johari
    Date Deposited: 06 Dec 2012 14:59
    Last Modified: 06 Dec 2012 14:59
    URI: http://eprints.um.edu.my/id/eprint/4042

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