Natural infection of Nyssomyia neivai (Pinto, 1926) (Diptera: Psychodidae, Phlebotominae) by Leishmania ( Viannia) spp. in Brazil

• Published in: Transactions of the Royal Society of Tropical Medicine and Hygiene Vol. 103; no. 11; pp. 1093 - 1097
• Main Authors: Marcondes, Carlos Brisola, Bittencourt, Ize A., Stoco, Patricia H., Eger, Iriane, Grisard, Edmundo C., Steindel, Mário
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01-11-2009; Royal Society of Tropical Medicine and Hygiene; Oxford University Press
• Subjects: Animals; Biological and medical sciences; Brazil; Cutaneous leishmaniasis; Diptera; DNA, Mitochondrial - genetics; DNA, Protozoan - isolation & purification; Female; General aspects; Human protozoal diseases; Infectious diseases; Leishmania; Leishmania braziliensis - genetics; Leishmania braziliensis - isolation & purification; Leishmaniasis, Cutaneous - parasitology; Leshmaniasis; Medical sciences; Nyssomyia neivai; Parasitic diseases; Phlebotominae; Polymerase Chain Reaction; Protozoal diseases; Psychodidae; Psychodidae - classification; Psychodidae - parasitology; Sand flies; Viannia; South America; Brazil; America; Cutaneous leishmaniasis; Phlebotominae; Brazil; Sand flies; Leishmania; Nyssomyia neivai; Kinetoplastida; Protozoa; Protozoal disease; Parasitosis; Leishmaniasis; Infection; Tropical medicine; Skin; Cutaneous
• ISSN: 0035-9203; 1878-3503
• DOI: 10.1016/j.trstmh.2008.12.006

A study of the natural infection of phlebotomine sand flies by
Leishmania (
Viannia) was conducted in a focus of cutaneous leishmaniasis in Piçarras, on the northeastern coast of the Brazilian state of Santa Catarina. In total, 562 female
Nyssomyia neivai were collected by miniature light traps near houses, separated in 61 pools and examined by PCR and Southern blot hybridization. Eight pools, four of them from the same light trap/night, were positive. This is the first finding of natural infection by
Le.
braziliensis of adequately identified
Ny.
neivai in Brazil. In this preliminary observation we observed the abundance and predominance of
Ny.
neivai among the captured phlebotomine species (98.5%), indicating that
Ny.
neivai may be the dominant vector of
Leishmania in the subgenus
Viannia in this area.