| epidemiology and immunology of necator americanus infection in a community in papua new guinea: humoral responses to excretory-secretory and cuticular collagen antigens. | baseline data from an immuno-epidemiological study of hookworm infection in a rural village in madang province, papua new guinea are reported. necator americanus was found to be the commonest helminth infection, with a prevalence of near 100% and intensity of 40 worms per host in adults. enterobius vermicularis, ascaris lumbricoides and trichuris trichiura were also present, at prevalences of 53, 10 and 3% respectively; ancylostoma duodenale was absent. the frequency distribution of n. americanu ... | 1990 | 2345664 |