Abstract
Background: Human hookworm infection has widespread socioeconomic and public health implications. Several coproculture techniques have been developed for morphological identification of hookworm larvae under limited resource availability. The objective of this study was to compare the performances of Harada–Mori culture (HMC), agar plate culture (APC), and modified APC (MAPC) of hookworm positive stool specimen for identification of hookworm species occurring in East Sikkim, India. Materials and Methods: This prospective cohort study was performed using 180 stool specimen collected from children who attended Central Referral Hospital and Sir Thodup Namgyal Memorial Hospital, with the complained of gastrointestinal symptoms. Blood samples were also collected to correlate with the complete blood count (CBC). The hookworm positive stool specimen evaluated by microscopy was subjected to HMC, APC, and MAPC techniques to harvest hookworm larvae. Stoll's dilution egg count for determining egg intensity and CBC were also performed for the children who were positive for hookworm's eggs in their stool sample. Results: This study observed a predominance of Necator americanus (75%) over Ancylostoma duodenale (25%). CBC results showed high packed cell volume values in 9/12, low hemoglobin 9/12, and high eosinophil count in all the positive children. Stoll's dilution egg count showed moderate infection in 66.6%, light and heavy infections in 16.7% of children's. APC method was superior to HMC and MAPC in culturing and identifying hookworm species. Conclusions: APC was observed to yield better results and was easier to perform in limited resource laboratory setting compare to MAPC or Harada–Mori culture techniques.
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