| contrasting patterns in the small-scale heterogeneity of human helminth infections in urban and rural environments in brazil. | marked heterogeneity exists in the patterns of parasitic infection between individuals, households and communities. analysis of parasite distributions within populations is complicated by the fact that parasite distributions are highly aggregated and few studies have explicitly incorporated this distribution when investigating small-scale spatial heterogeneities. this study aimed to quantify the small-scale (within- and between-household) heterogeneity of helminth infection in an area of minas g ... | 2006 | 16814294 |
| the finding of echinostoma (trematoda: digenea) and hookworm eggs in coprolites collected from a brazilian mummified body dated 600-1,200 years before present. | the identification of parasites from ancient cultures expands our list of parasites infective to extant humans. a partially mummified human body from the archeological site of lapa do boquete, minas gerais state, brazil, was recently discovered. it was interred between 600 and 1,200 yr ago. dietary analysis showed that the mummified body was from a society that had a mixed subsistence of agriculture and gathering of wild foods. coprolites from the body contained numerous helminth eggs. the eggs ... | 2005 | 17089781 |
| hookworm, ascaris lumbricoides infection and polyparasitism associated with poor cognitive performance in brazilian schoolchildren. | to investigate the relationship between hookworm and ascaris lumbricoides infection and performance on three subsets of the wechsler intelligence scale for children - third edition (wisc-iii) (digit span, arithmetic and coding) and raven colored progressive matrices. | 2008 | 18627581 |
| human helminth co-infection: no evidence of common genetic control of hookworm and schistosoma mansoni infection intensity in a brazilian community. | strong statistical associations between soil-transmitted helminths and schistosomes are frequently observed in co-endemic human populations, although the underlying explanations remain poorly understood. this study investigates the contribution of host genetics and domestic environment to hookworm and schistosoma mansoni infection intensity and evaluates the role of genetic and non-genetic factors in co-variation of infection intensity. detailed genealogical information allowed assignment of 130 ... | 2010 | 19699204 |