During surgery, we extracted 32 worms of Ascaris lumbricoides from the Infestacion masiva de la via biliar por Ascaris lumbricoides: informe de un caso. Evaluation of two years of mass chemotherapy against ascariasis in Hamadan, Evaluación de dos años de quimioterapia masiva contra la ascariasis en. Prevalence and intensity of infections of Ascaris lumbricoides and Trichuris trichiura and associated socio-demographic variables in four rural Honduran.
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Evaluation of two years of mass chemotherapy against ascariasis in Hamadan, Islamic Republic of Iran. To evaluate the mass treatment of ascariasis in rural areas of Hamadan Province, Islamic Republic of Iran. A control programme in rural areas of Hamadan Province, which began in Novemberinvolved giving all persons a single dose of mg albendazole at intervals masivs three months.
The average rate of infection with Ascaris before treatment was Madiva side-effects of mass treatment were observed.
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Systematic mass treatment giving high coverage proved to be very effective in the control of ascariasis, notwithstanding a lack acsaris other preventive measures. The treatment of individuals with intestinal parasitic diseases can be expected to have only a limited effect on their transmission in the community as a whole.
Consequently, community-oriented projects have an essential role in the prevention and control of such diseases 1. Ascaris lumbricoides infection reflects socioeconomic status, environmental sanitary practices, health awareness and health education 2.
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Mass treatment against Ascaris spp. This is especially true in communities where other interventions, e.
In addition to certain sociological factors, parasitological factors have a great impact on such control. In tropical aascaris the rate of reinfection with Ascaris spp. The efficacy of control is clearly influenced by the drug used, its dosage rate, the intervals between successive doses, and the aacaris of times the dose is repeated. The suggestion has been made that infections of soil-borne helminthic parasites might be controlled by intensively repeating the administration of highly effective drugs 56.
Its prevalence ranges from A review of 56 cases of surgical complications caused by Ascaris infection indicated an incidence of nearly 3 cases per children under 10 years of age Motahhari N. Fallah, unpublished data, Children who spontaneously eliminate worms by vomiting are not rare, even among inhabitants of urban areas.
Farming is the principal occupation, and until recently most farmers used night soil as fertilizer because of its ready availability.
Massive Infestation of the biliary duct for Ascaris lumbricoi..|INIS
Untreated sewage flowed into the rivers or was widely used in vegetable gardens. Such conditions provide a favourable environment for the development of A. A single dose of mg albendazole was given to every person except children under 2 years of age and pregnant women. These groups were excluded in order to avoid possible side-effects 11 The first treatment was given in November and further treatments were given at intervals of three months for two years.
The programme was evaluated in Decemberby which time eight treatments had been administered. Aecaris overall prevalence of intestinal helminths masivz the target localities before treatment was After two years the overall prevalence of ascariasis had fallen from The proportion of all positive individuals excreting only unfertilized A. A steep decline occurred in all rural areas, including the centre of the province Table 3.
The mean, mode and median egg counts in different localities are indicated in Table 4.
Among the positive cases, No reduction in the prevalence of intestinal protozoan parasites such as Giardia lamblia or in that of H. Evaluation of programmes during their execution is essential in order to determine whether satisfactory progress is being made and whether any adjustments are required 13 The existence of a source of A.
Poor personal hygiene and environmental sanitation, which can occur as a consequence of indiscriminate defecation by young children and the use of human excreta as fertilizer on farms and vegetable gardens, may result in infection Periodic treatment for the control of intestinal parasitic infections is highly effective and inexpensive Nevertheless, it is desirable to make a careful study of the epidemiology of soil-transmitted helminths before undertaking large-scale control activities, especially with regard to periodic treatment schedules The most effective approach has involved universal treatment at intervals of two months.
However, excessively frequent drug administration should be avoided, while the high cost per individual and the very substantial manpower requirement for mass campaigns need to be taken into consideration. Ascariasis has been successfully controlled by treating at intervals of four or six months 1218 We found that the prevalence of Ascaris spp.
In this region, especially in the Hamadan city area, people use all available open spaces for private vegetable gardens, and raw sewage is used for irrigation and sometimes as fertilizer. There is an efficient and comprehensive network of health centres in the rural areas of the Islamic Republic of Iran. This played a key role in the success of the programme, and district health officers were focal points for the community-oriented project.
Requests for anthelmintics, especially mebendazole, the main such drug on the local market, diminished dramatically after the implementation of the mass treatment programme.
Primary care workers have a basic role in ascariasis control because of their close links with communities. Their initiatives, educational work and efforts to improve community sanitation and hygiene contribute ascarks to the masifa of control activities In order to evaluate the improvement of public health in depth and the impact at community level it is necessary to conduct nutritional assessment in some target age groups.
The interruption of mass treatment can be expected allow a rapid increase in egg- positive rates because of rapid reinfection with Mssiva spp. It is considered that the present mass control programme should continue for at least three more ascsris with six-monthly intervals between treatments and that further changes in the intensity of infection attributable to a decrease in the egg prevalence should be taken into account.
It is worth noting that, although there were no significant reductions in Giardia spp. The present study indicated that systematic mass treatment provided effective control of ascariasis even in the absence of other preventive measures. We thank Dr Y.
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Pireh of the Ministry of Health and Medical Education of the Islamic Republic of Iran for constructive comments on the evaluation of the programme and for helping to design the study. No se observaron efectos secundarios asociados al tratamiento masivo. Prevention and control of intestinal parasitic infections. World Health Organization; Intestinal protozoan and helminthic infections. Standardization of the methods for evaluation of the effect of intestinal parasite control.
Collected papers sscaris the soil-transmitted helminthiasesVol. Asian Parasite Control Organization; Predisposition to reinfection by intestinal helminths after chemotherapy in south Thailand.
International Journal for Asscaris ; Intensity of reinfection with Ascaris lumbricoides and its implications for parasite zscaris. Weekly Epidemiological Record ;70 4: Ministry of Health and Medical Education; Unpublished document in Persian. A randomized controlled masica comparing mebendazole and albendazole against AscarisTrichuris and hookworm infections. Collected papers on the control of soil-transmitted helminthiases. Morbidity and mortality due to ascarsi Tropical Medicine and International Health ;2: Intestinal parasitic infections and urbanization.
Bulletin of the World Health Organization ; Evaluating measures to control intestinal parasitic infections.
World Masiga Statistics Quarterly ; Comparative prevalence of Ascaris lumbricoidesTrichuris trichiura and hookworm infections and the prospects for combined control. How much human helminthiasis is there in the world? Journal of Parasitology ; Parasitology Today ; Albendazole as a future antigiardial agent. Albendazole treatment for Giardia intestinalis infections in school children.
Correspondence should be addressed to this author. Bulletin of the World Health Organization. Introduction The treatment of individuals with intestinal parasitic diseases can be expected to have only a limited effect on their transmission in the community as a whole.
Results The overall prevalence of intestinal helminths in the target localities before treatment was Discussion Evaluation of programmes during their execution is essential in order to determine whether satisfactory progress is being made and whether any adjustments are required 13 ReadCube Visualizar o texto. Similares no Google Citados no Google Scholar.