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  • Title: Mitigation of hookworm disease by immunization with soluble extracts of Ancylostoma ceylanicum.
    Author: Bungiro RD, Greene J, Kruglov E, Cappello M.
    Journal: J Infect Dis; 2001 May 01; 183(9):1380-7. PubMed ID: 11294670.
    Abstract:
    Hookworms are a leading cause of anemia in developing countries, and a strategy aimed at reducing pathology caused by blood-feeding adult parasites would be a valuable addition to global control efforts. This article describes experiments designed to induce resistance to the major clinical sequelae (weight loss and anemia) of Ancylostoma ceylanicum hookworm infection in Syrian golden hamsters of the outbred LVG strain. Previously infected animals acquired long-lived resistance to weight loss and anemia caused by a secondary hookworm infection. Furthermore, transfer of pooled serum from twice-infected hamsters to animals undergoing a primary infection was associated with partial resistance to growth delay and anemia. Active vaccination of hamsters with soluble adult hookworm antigens emulsified in alum led to partial protection from hookworm-associated pathology in the absence of reductions in adult worm burden. This intriguing result may have important implications for human vaccine development.
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