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1.
Trans R Soc Trop Med Hyg ; 97(4): 422-8, 2003.
Article in English | MEDLINE | ID: mdl-15259472

ABSTRACT

The prevalence of chloroquine-resistant Plasmodium falciparum malaria has been increasing in sub-Saharan Africa and parts of South America over the last 2 decades, and has been associated with increased anaemia-associated morbidity and higher mortality rates. Prospectively collected clinical and parasitological data from a multicentre study of 788 children aged 6-59 months with uncomplicated P. falciparum malaria were analysed in order to identify risk factors for chloroquine treatment failure and to assess its impact on anaemia after therapy. The proportion of chloroquine treatment failures (combined early and late treatment failures) was higher in the central-eastern African countries (Tanzania, 53%; Uganda, 80%; Zambia, 57%) and Ecuador (54%) than in Ghana (36%). Using logistic regression, predictors of early treatment failure included younger age, higher baseline temperature, and greater levels of parasitaemia. We conclude that younger age, higher initial temperature, and higher baseline parasitaemia predict early treatment failure and a higher probability of worsening anaemia between admission and days 7 or 14 post-treatment.


Subject(s)
Anemia/parasitology , Antimalarials/therapeutic use , Chloroquine/therapeutic use , Malaria, Falciparum/drug therapy , Parasitemia/drug therapy , Age Factors , Body Temperature , Child, Preschool , Drug Resistance , Female , Humans , Infant , Logistic Models , Malaria, Falciparum/complications , Male , Prognosis , Prospective Studies , Risk Factors , Treatment Failure
2.
Acta Trop ; 75(1): 19-28, 2000 Feb 25.
Article in English | MEDLINE | ID: mdl-10708003

ABSTRACT

A longitudinal prospective surveillance for acute adenolymphagitis (ADL) was carried out in three villages in Rufiji district. A sample population of 3000 individuals aged 10 years and above was monitored fortnightly for a period of 12 months. The annual incidence of ADL was found to be 33 per 1000 population and was significantly higher in males than females (52.7/1000 and 18.7/1000 respectively). ADL episodes were more frequent in the age group of 40 years and above. Individuals with chronic manifestations seemed to be more vulnerable to ADL attacks with 62.2% of the total episodes occurring in this group. Furthermore, individuals with lymphoedema experienced more frequent acute episodes compared to those with hydrocele and 'normal exposed'. ADL episodes ranged from one to five per annum and the majority of the affected (60.4%) experienced a single episode. The average duration of an ADL episode was 8.6 days and in 72.5% of the episodes the affected individuals were incapacitated and unable to do their normal activities for an average duration of 3.7 days. The physical incapacitation associated with ADL episodes emphasizes the significance of lymphatic filariasis as a major public health problem of substantial socio-economic consequences.


Subject(s)
Elephantiasis, Filarial/complications , Lymphangitis/epidemiology , Lymphangitis/parasitology , Wuchereria bancrofti , Adolescent , Adult , Age Distribution , Aged , Animals , Child , Cross-Sectional Studies , Elephantiasis, Filarial/parasitology , Female , Health Surveys , Humans , Incidence , Lymphangitis/pathology , Male , Middle Aged , Rural Health , Seasons , Sex Distribution , Tanzania/epidemiology
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