Reliable determination of hookworm nematode parasite species from dogs can be carried out post-mortem by microscopical examination of the buccal cavity of adult worms isolated from the host small intestine. In order to allow a proper diagnosis of the hookworm infection in a living host, we developed a polymerase chain reaction (PCR). Using DNA extracted from hookworm eggs and an oligonucleotide set designed on the basis of the DNA sequence of a cysteine proteinase AcCP1 gene, Ancylostoma caninum and Uncinaria stenocephala DNA can be discriminated from each other.
The humoral response in hamsters following vaccination against Ancylostoma ceylanicum infections with DNA construct was investigated. Groups of hamsters were injected intramuscularly with plasmid pcDNA 3.1, containing cDNA of ACEY-1 cysteine proteinase. Vaccination resulted in IgG antibody response to somatic extracts of adult A. ceylanicum. The highest level of antibodies was observed seven weeks after vaccination.
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