Sand fly fauna (Diptera, pcychodidae, phlebotominae) in different leishmaniasis-endemic areas of ecuador, surveyed using a newly named mini-shannon trap.

To study the sand fly fauna, surveys were performed at four different leishmaniasis-endemic sites in Ecuador from February 2013 to April 2014. A modified and simplified version of the conventional Shannon trap was named "mini-Shannon trap" and put to multiple uses at the different study sites in limited, forested and narrow spaces. The mini-Shannon, CDC light trap and protected human landing method were employed for sand fly collection. The species identification of sand flies was performed mainly based on the morphology of spermathecae and cibarium, after dissection of fresh samples. In this study, therefore, only female samples were used for analysis. A total of 1,480 female sand flies belonging to 25 Lutzomyia species were collected. The number of female sand flies collected was 417 (28.2%) using the mini-Shannon trap, 259 (17.5%) using the CDC light trap and 804 (54.3%) by human landing. The total number of sand flies per trap collected by the different methods was markedly affected by the study site, probably because of the various composition of species at each locality. Furthermore, as an additional study, the attraction of sand flies to mini-Shannon traps powered with LED white-light and LED black-light was investigated preliminarily, together with the CDC light trap and human landing. As a result, a total of 426 sand flies of nine Lutzomyia species, including seven man-biting and two non-biting species, were collected during three capture trials in May and June 2014 in an area endemic for leishmaniasis (La Ventura). The black-light proved relatively superior to the white-light with regard to capture numbers, but no significant statistical difference was observed between the two traps.

Flora bacteriana en probables úlceras leishmaniásicas de pacientes de un foco endémico de la costa del Pacífico del Ecuador

Se hizo un estudio para detectar infección bacterinana en lesiones leishmaniásicas sospechosas de individuos habitantes de la floresta tropical densa y húmeda de 2 áreas endémicas en la costa del Pacífico del Ecuador. De los 82 pacientes examinados, 80 (97.6 por ciento) fueron positivos para infecciones bacterianas. Las bacterias más frecuentes fueron el estafilococo, Staphylococus aureus y S. epidermis, micrococos y bacilos Gram positivos. La importancia de tal estudio de las áreas endémicas del Nuevo Mundo fue discutida brevemente.