First Molecular Identifications of Necator americanus and Ancylostoma ceylanicum Infecting Rural Communities in Lower Myanmar

Autor: Jurairat Jongthawin, Thi Thi Htoon, Rutchanee Ropai, Lakkhana Sadaow, Oranuch Sanpool, Wanchai Maleewong, Win Pa Pa Aung, Pewpan M. Intapan, Htay Htay Tin, Issarapong Phosuk
Rok vydání: 2016
Předmět:
Zdroj: The American Journal of Tropical Medicine and Hygiene. 96:214-216
ISSN: 1476-1645
0002-9637
DOI: 10.4269/ajtmh.16-0610
Popis: Hookworms are enteric parasitic roundworms infecting an estimated 400 million persons worldwide. Herein, we provide the first molecular identifications of human hookworms from certain parts of rural Lower Myanmar. DNA was extracted from hookworm-positive stool samples, as determined by microscopy. DNA sequences of the partial internal transcribed spacer 1, full length 5.8S gene, and partial internal transcribed spacer 2 were determined and compared with available hookworm sequences from public databases. Of the 11 polymerase chain reaction–positive samples, eight (Bago Region, N = 4; Mon State, N = 4) yielded sequences with high similarity to those of Necator americanus. A further three sequences (Mon State, N = 2; Bago Region, N = 1) showed high similarity with those of Ancylostoma ceylanicum. The latter is primarily a parasite of dogs and represents a zoonosis. Given that different species of hookworms exhibit different epidemiological and biological characteristics, accurate identification is essential for the planning and execution of effective control programs for hookworm infections.
Databáze: OpenAIRE