Sunday, October 18, 2015

Record of the First Cases of Human Myiasis by Lucilia cuprina (Diptera: Calliphoridae), Rio de Janeiro, Brazil

ABSTRACT
Myiasis is a disease caused by an infestation of the tissues of vertebrates by developing fly larvae. We document the first cases of human myiasis by Lucilia cuprina(Wiedemann, 1830) in Rio de Janeiro, Brazil, analyzed the epidemiological and clinical profiles of the patients, and their risk factors associated with the occurrence of the disease. Between May 2008 to July 2013, six cases of myiasis caused by larvae of L. cuprina were reported in patients treated in the Federal Hospital of Andaraí, Rio de Janeiro, Brazil. The six patients ranged between 13 and 72 yr old, belonged to various ethnic groups, and both sexes were represented. The affected individuals were relatively uneducated, had low income and poor hygiene habits. Infections were more common in the legs. The following factors were found to predispose individuals to myiasis: trauma, pediculosis, erysipelas, skin infections, and wounds resulting from congestive heart failure. Myiasis by L. cuprina occurred predominantly in the summer when there is abundant rainfall.






Autores: WELLINGTON THADEU DE ALCANTARA AZEVEDO, ADRIANA LEAL DE FIGUEIREDO, RAFAELA PEREIRA DE CARVALHO, GUSTAVO ABRANTES LEMOS, PÔLA FRANCINE CASSIANO MORAIS SILVA, TAÍS AURICCHIO DE MIRANDA, CLÁUDIA SOARES SANTOS LESSA, AND VALÉRIA MAGALHÃES AGUIAR




Intrapuparial Development of Chrysomya putoria (Diptera: Calliphoridae)

ABSTRACT 

The intrapuparial development of 150 pupae of Chrysomya putoria (Wiedemann, 1830) was analyzed. The material was kept in a climate chamber at 27 C (day) and 25 C (night), 60 10% relative humidity (RH), and a photoperiod of 14:10 (L:D) h, which started at 06:00 a.m. Daily, 30 pupae were frozen at 15 C, for the sacriÞce of the insects, and the immatures obtained were photomicrographed until the emergence of the adults. The following stages were observed: pupariation process: during this process, reduction of the larvae's first three body segments and the darkening of the cuticle occur; cryptocephalic phase after 18 h; phanerocephalic phase after 24 h; body division after 48 h. Between the third and the fourth days of the development, the stage of pharate adult was reached, characterized by the following changes in the color of the compounds eyes: 1) orange eyes, after 66 h; 2) red eyes, after 72 h; 3) dark red eyes, after 90 h; 4) brown eyes, after 96 h. The time of intrapuparial development ofC. putoriaat 27 C (day) and 25 C (night), 60 10% RH, and a photoperiod of 14:10 (L:D) h was 5 d.



Autores: BARBARA PROENÇA, ANTONIA C. RIBEIRO, RAFAEL T. LUZ, VALÉRIA M. AGUIAR,VALÉRIA C. MAIA, AND MÁRCIA S. COURI