Prevalence of helminth ova in soil samples from public places in Shiraz

To determine the prevalence of helminth eggs in public places and children's playgrounds, 112 soil samples were collected in 26 sites in Shiraz, southern Islamic Republic of Iran, during September 2002- September 2003. Toxocara cati ova were found in 7 [6.3%] samples, 2 had Ascaris ova, 3 had larvae morphologically similar to Strongyloides stercoralis. Coccidia oocysts were also observed in 4 samples. No contamination was observed during the dry season

Transmissão de enteroparasitoses através do papel-moeda / Transmission of enteropasitosis through currency notes

PURPOSE: There are several ways to propagation of parasitary diseases and how there aren't many bibliographic work about this theme, it was realized a study near to the Natal-RN population, to verify the enteroparasites transmission through the paper money. METHODS: In the Laboratório Parasitologia Clínica was analysed 500 bills of several worths gotten in shops and, concomitantly it was examined samples of a water got from the washed hands of the people who held the money. The methods to realize the parasitologic exams were: Ritchie and Faust et al. RESULTS: It was observed the following parasites prevalent in 48 (9.6%) examined bills: Endolimax nana 31 (6.2%), Entamoeba coli 06 (1.2%), Entamoeba histolytica 01 (0.2%), Ascaris lumbricoides 10 (2.0%). In the water, it vas observed that 40 (40.0%) of them had the same kinds of parasites in their hands. CONCLUSIONS: Finally, it is postulated that the paper money is important to the enteroparasites transmission and it is suggested that new researches must be done in this area.

Ascaris control: where do we stand?

Ascaris lumbricoides [the largest roundworm] is the most common and potentially serious pathogenic geo-helminth which is estimated of infect approximately 1300 million people. Its complications have been estimated cause 100, 000 deaths each year. World's population harbors 10, 000 million ascaris with a total burden of around 100 tons. Prevalence rates of the order of 16-97.6% have been recorded in many Asian and Latin countries. Ascariasis is a dirt disease, the load of which, unfortunately, its advancing, not receding. The toll is going high up because of increase in population and deterioration of sanitary conditions. Permanent freedom from the parasitions could not be expected till millions of residents of slum areas in developing countries succeed in getting clean environments. This does not seem to be an attainable goal in near future because the meager resource of these countries have already been over-stretched and provision of safe water and safe toilet facilities is a quite remote possibility

Prevalence and intensity of soil-transmitted helminthiasis in the city of Portoviejo (Ecuador)

We studied the stool samples of 151 school children in a district of the city of Portoviejo (Ecuador) in order to determine the prevalence and intensity of soil-transmitted helminthiasis (STH) and their relationships with anthropometric indices. The samples were analyzed with the semiquantitative Kato-Katz technique and the intensity of infections was categorized as light, moderate or high according to the thresholds set by the World Health Organization. Prevalence of soil transmitted helmintiasis was 65 percent (92 out of 141 collected samples), Ascaris lumbricoides was the most common STH (63 percent) followed by Trichuris trichiura (10 percent) and hookworm (1.4 percent). Heavy intensity infections were found in 8.5 percent of the stool samples, with T. trichiura showing higher worm burdens than A. lumbricoides. Sixteen percent of the children were below the third percentile for weight (wasted), while 27 percent were below the third percentile for height (stunted). A significant relationship was found between the worm burden and the degree of stunting. This study suggests that the periodic administration of an antihelminthic drug should be targeted to preschool and school children to allow a normal growth spurt and prevent stunting

Ascaris lumbricoides in neonate: evidence of congenital transmission of intestinal nematodes

O estudo clínico e epidemiológico do caso de uma criança, com quarenta dias de idade, que apresentava quadro diarréico e desenvolvimento insuficiente desde o nascimento, conduziu ao diagnóstico coprológico de ascaríase e à hipótese de tratar-se de uma infecçäo congênita. O tratamento específico, com levamizol, produziu cura clínica e parasitológica, e um ganho de peso pelo qual a criança logo alcançou os níveis normais para a idade. O parasitismo materno havia sido diagnosticado dois meses antes do parto e foi confirmado, plenamente, por ocasiäo do inquérito epidemiológico que realizamos. As razöes para se admitir a hipótese de transmissäo congênita säo apresentadas no trabalho