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  • Title: High prevalence rate of Entamoeba histolytica asymptomatic infection in a rural Mexican community.
    Author: Ramos F, Morán P, González E, García G, Ramiro M, Gómez A, DE León Mdel C, Melendro EI, Valadez A, Ximénez C.
    Journal: Am J Trop Med Hyg; 2005 Jul; 73(1):87-91. PubMed ID: 16014840.
    Abstract:
    The frequency of Entamoeba histolytica and Entamoeba dispar infection was analyzed in a rural community in the state of Morelos, Mexico, using polymerase chain reaction (PCR). Sociodemographic variables as risk factors for the infection were assessed. Results highlighted the number of individuals with intestinal parasites (43.1%) in the community, indicating extensive fecalism. A high frequency of E. histolytica asymptomatic infection, higher than E. dispar infection (13.8% versus 9.6%), was detected by PCR. Anti-amebic antibody levels (IgG) in serum and saliva (IgA) samples were not associated with E. histolytica intestinal infection. These findings suggest a predominant distribution of E. histolytica strains of low invasive potential in this community.
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