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Maracay, Venezuela

Rubio-Palis Y.,Direccion de Salud Ambiental | Rubio-Palis Y.,University of Carabobo | Perez-Ybarra L.M.,University of Carabobo | Infante-Ruiz M.,University of Carabobo | And 2 more authors.
Boletin de Malariologia y Salud Ambiental | Year: 2011

In order to determine the influence of climatic and entomological variables on the number of dengue cases, a retrospective and longitudinal study was conducted in the metropolitan area of Maracay during the period 1997-2005. Daily and monthly climatological data was obtained from the Climatological Station at the Universidad Central de Venezuela and epidemiological data based on confirmed and highly suggestive cases reported by the Regional Laboratory for Diagnosis and Research on Dengue and other Viral Infections (LARDIDEV). Aedes aegypti (L.) adults were collected monthly between November 2000 and December 2001. Vector abundance varied from 3,6 Aedes/house during April (dry season) to 14,7 Aedes/house (rainy season). Pearson correlation analysis showed a positive correlation between the number of dengue cases and rainfall (r= 0,7182, P =0,0038) and abundance of Ae. aegypti (r= 0,667, P =0,0078), but no correlation was found with temperature or relative humidity. Regression analysis showed that there was a highly significant relation (R2 = 88,7%, P<0,0001) between rainfall and dengue cases at a lag of 2 months. The present results might be used to design and implement programs for the epidemiological and entomological dengue surveillance as well as to establish an early warning system to prevent epidemics. Source

Alcobedes M.M.C.,University of Carabobo | Boggio G.,Central University of Venezuela | de Lourdes Guerra M.,Central University of Venezuela | de Gavidia M.R.,Direccion de Salud Ambiental | And 6 more authors.
Tropical Animal Health and Production | Year: 2010

There is a paucity of quantitative data on the status of porcine cysticercosis in Venezuela, information which is essential for understanding the level of disease transmission. This study was, therefore, conducted in a typical small rural community in Yaracuy State, Venezuela, where previous cases of human Taenia solium taeniasis/cysticercosis had been reported and where the free-ranging pig management practices and the lack of rudimentary sanitary facilities indicated an obvious risk for transmission of the disease. Serum samples from 52 village pigs were screened by enzyme-linked immunosorbent assays for anti-cysticercal antibodies (Ab-ELISA), using T. solium cyst fluid as the antigen and the HP10, monoclonal antibody-based, antigen trapping ELISA for parasite antigen (HP10 Ag-ELISA). Significantly, a high proportion of the animals (65.4% for the Ab-ELISA and 42.3% for the HP10 Ag-ELISA) were sero-positive. Five of the pigs, which were selected on that basis of positive tongue palpation, were killed for autopsy, and large numbers of viable cysticerci were found in the carcases. This unequivocal documentation of porcine cysticercosis in Venezuelan pigs presents clear evidence that T. solium is actively transmitted in Venezuela. Further detailed studies and implementation of appropriate control measures are therefore indicated. © 2009 Springer Science+Business Media B.V. Source

Hernandez M.,University of Carabobo | Pina M.,University of Carabobo | Soto-Vivas A.,Direccion de Salud Ambiental | Rangel M.A.,Direccion de Salud Ambiental | Liria J.,University of Carabobo
Salus | Year: 2015

Aedes albopictus or “Asian tiger mosquito” is an invasive species consider the second most important dengue vector. Due to public health relevance and the recent findings in several areas from Venezuela, we sampled in seven localities in the Carabobo State from june to august, 2013. This is the first report of Aedes albopictus in four localities of Carabobo State associated to larvitraps and flower vases. This increases to 15 the number of occurrences in the country. This finding in urban areas of Carabobo represents a potentiality risk for arboviruses emergence and transmission, because that we recommended vector monitoring, entomological and epidemiological surveillance and the vectorial control in the country. This finding shows the importance of further studies of mosquito’s geographical distribution, arboviruses detection, vector ecological aspects, and their possible medical and epidemiological link with emerging and reemerging diseases. © 2014, Revista Salus. All rights reserved. Source

Gonzalez B.,University Centroccidental Lisandro Alvarado | Silva M.,University Centroccidental Lisandro Alvarado | Al-Atrache Y.,University Centroccidental Lisandro Alvarado | Delgado Y.,University Centroccidental Lisandro Alvarado | And 9 more authors.
Investigacion Clinica (Venezuela) | Year: 2014

This study evaluates the risk factors associated with the diagnosis of chronic chagasic miocardiopathy (CChM) in 115 seropositive individuals to anti-Trypanosoma cruzi antibodies, in Barinas state, Venezuela. Serology was performed with ELISA and MABA; while the CChM diagnosis was established by electrocardiography and echocardiography. A complete clinical history including epidemiological, personal/familiar antecedents and psychobiological habits, plus socioeconomic, psychosocial and alimentary habits interviews were performed for each individual. Risk factors were determined through binary logistic regression. Results showed that 81 patients (70,4%; CI95% = 66.4-74.4) had criteria for CChM, of which 74 (64.4%; IC95% = 60.2-68.6) were in phase II; while 34 (29.6%; IC95% = 25.5-33.5) were in phase I of the disease and 7 (6.1%; IC95% = 4.0-8.2) in phase III. In a one year period, two patients in phase III died of heart failure. The diagnosis of CChM was associated with hunting practice, maternal history of cardiopathies, chewing chimó, medical history of hypertension and apex beat visible; it was negatively associated with canned and preserved foods ingest. In conclusion the CChM diagnosis has high frequency in seropositive individuals in Barinas and heart failure prevention must be based on an early medical attention and educative strategies in order to control risk factors. © 2014, Investigacion Clinica (Venezuela). All rights reserved. Source

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