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2015, Number 5

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Revista Habanera de Ciencias Médicas 2015; 14 (5)

Eosinophilic meningoencephalitis due to Angiostrongylus cantonensis and meteorological variables

Dorta-Contreras AJ, Ramos-Plasencia A, Padilla-Docal B, Bú-Coifiu-Fanego R, Iglesias GIM

Language: Spanish
References: 22
Page: 654-665
PDF size: 522.49 Kb.


ABSTRACT

Introduction: Angiostrongylus cantonensis is a helmint that lives in the pulmonary arteries of two rat’s species: Rattus rattus and Rattus norvergicus. Human is an accidental host that is infected by ingestion of third larvae stage in bad washed vegetables, fruit and different species of mollusks which constitute the intermitted hosts.
Objective: to characterize the humidity, temperature and rain fall in zones where were reported the patients and its relation with the eosinophilic meningoencephalitis cases by Angiostrongylus cantonensis.
Material and Methods: 34 patients were diagnosed with this illness. They were admitted at Hospital Pediatric San Miguel del Padrón, Havana, Cuba from January 1991 until January 2014. In order to obtain of meteorological variables data we remit to the admission patient date and dairy and monthly register of the Meteorology Institute. Were calculated the correlation coefficient for each meteorological variable and the number of cases related to the different variables and the regression lines were performed.
Results: the more quaintly of patients were grouped in periods where annual average fluctuated between 75 y 76 % and environment humidity oscillated between 65 y 80%.The probability to find illness cases is major in the years with average annual rain between 68 and more of 120mm. An inverse correlation was observed for temperature.
Conclusions: the larger number of reported cases coincides with the best conditions of environmental humidity and temperature for the development of the third stage larvae in mollusks.


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