Comunicado

  • Posted on: 6 September 2018
  • By: admin_iiet

  El Instituto de Investigaciones de Enfermedades Tropicales expresa su preocupación y rechazo a la pérdida de los Ministerios de Salud y de Ciencia y Tecnología. Reafirmando nuestra vocación y compromiso a seguir trabajando en los ejes científico y sanitario, vemos y queremos alertar acerca de estas recientes decisiones del Gobierno Nacional como un retroceso dañino y peligroso; por eso pedimos reconsiderar estas medidas.

Manual de Técnicas básicas para diagnóstico parasitológico

  • Posted on: 30 August 2018
  • By: admin_iiet

PROTOCOLO DE TÉCNICAS DE DIAGNÓSTICO PARASITOLÓGICO

TÉCNICA DE CONCENTRACIÓN

Materiales:

  • Frasco de toma de muestra de materia fecal
  • Gasa cuádruple
  • Embudo
  • Centrífuga
  • Tubo de centrífuga de plástico de 15 ml
  • Palillos de plástico
  • Portaobjetos
  • Cubreobjetos
  • Colorante Amido Schwartz (ver anexo para preparación de este colorante).
  • Varilla de madera o de vidrio

 

Fecha: 
07/08/2018
Linea de Investigacion: 

Abstract

Aedes aegypti L. (Diptera: Culicidae) is a mosquito broadly found in tropical and temperate areas of the world. It is the main vector of dengue, chikungunya, zika and yellow fever (urban cycle), among other viruses. Aedes aegypti immatures develop in water holding containers, and frequently use artificial containers in urban settings as larval habitat. Ovitraps are artificial oviposition sites, a tool developed for mosquito population surveillance and to assess effectiveness of control measures. The preference for different oviposition substrate materials was assessed in the field, in two localities of Salta province, northern Argentina, where dengue outbreaks are frequent. The proportion of positive traps did not differ between oviposition substrates. However, higher numbers of eggs were laid in cotton fabric and velour paper, which were better than wooden paddle and blotting paper if the aim was to maximize the numbers of eggs collected. The results also evidenced that substrate preference for oviposition did not differ between geographic regions.

Fecha: 
03/08/2018
Linea de Investigacion: 

Abstract

The sand fly fauna in Hipólito Yrigoyen, Argentina, a locality where cutaneous leishmaniasis cases occur, was surveyed with zones of higher abundance of sand flies correlated to vegetation cover estimated through normalized difference vegetation index (NDVI). Sand flies were collected with 10 CDC traps during six nights, from December 2009 to January 2010. A map was built of expected sand flies abundance in which levels of NDVI were categorized. In total, 1,392 Phlebotominae (Diptera: Psychodidae) specimens were collected, comprised of the following species: Nyssomyia neivai (Pinto 1926), Migonemyia migonei (França 1920), species of the cortelezzii complex (Brèthes 1923), Evandromyia sallesi (Galvão & Coutinho 1940), and Psathyromyia shannoni (Dyar 1929). Positive correlations were found between the abundance of sand flies and the NDVI (P < 0.05) for buffer areas of <150 m radii from the trap location points, i.e., the sand fly abundance was greater where vegetation cover and density were greater. In this context, plant cover should be taken into account to prioritize surveillance and control areas within the program of sand flies control in northern Argentina.

Autor/es: 
Fecha: 
10/07/2018
Enfermedades Tropicales 2018

Páginas