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Titolo:
Deltamethrin-impregnated dog collars have a potent anti-feeding and insecticidal effect on Lutzomyia longipalpis and Lutzomyia migonei
Autore:
David, JR; Stamm, LM; Bezerra, HS; Souza, RN; Killick-Kendrick, R; Lima, JWO;
Indirizzi:
Harvard Univ, Sch Publ Hlth, Dept Immunol & Infect Dis, Boston, MA 02115 USA Harvard Univ Boston MA USA 02115 munol & Infect Dis, Boston, MA 02115 USA Fundacao Nacl Saude, Fortaleza, Ceara, Brazil Fundacao Nacl Saude Fortaleza Ceara Brazil ude, Fortaleza, Ceara, Brazil Univ London Imperial Coll Sci Technol & Med, Dept Biol, Ascot SL5 7PY, Berks, England Univ London Imperial Coll Sci Technol & Med Ascot Berks England SL5 7PY d
Titolo Testata:
MEMORIAS DO INSTITUTO OSWALDO CRUZ
fascicolo: 6, volume: 96, anno: 2001,
pagine: 839 - 847
SICI:
0074-0276(200108)96:6<839:DDCHAP>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
CANINE LEISHMANIASIS; PHLEBOTOMINE SANDFLIES; PSYCHODIDAE; DIPTERA; PROTECTION; BITES;
Keywords:
sand flies; deltamethrin; anti-feeding effect; Leishmania; control; visceral leishmaniasis; dog collars;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: David, JR Harvard Univ, Sch Publ Hlth, Dept Immunol & Infect Dis, 665 Huntington Ave, Boston, MA 02115 USA Harvard Univ 665 Huntington Ave Boston MA USA 02115 MA 02115 USA
Citazione:
J.R. David et al., "Deltamethrin-impregnated dog collars have a potent anti-feeding and insecticidal effect on Lutzomyia longipalpis and Lutzomyia migonei", MEM I OSW C, 96(6), 2001, pp. 839-847

Abstract

Deltamethrin-impregnated PVC dog collars were tested to assess if they were effective in protecting dogs from sandfly bites of Lutzomyia longipalpis and Lu. migonei. A protective effect against Old World species Phlebotomus perniciosus was demonstrated before. Four dogs wearing deltamethrin collarsand three dogs wearing untreated collars (not impregnated with deltamethrin) were kept in separate kennels for over eight months in a village on the outskirts of Fortaleza in Ceara, Brazil. Periodically, a dog from each group was sedated, placed in a net cage for 2 h in which 150 female sandflies had been released 10-15 min before. Lu. longipalpis were used 4, 8, 12, 16, 22, 27, and 35 weeks after the attachment of the collars. Lu. migonei were used 3, 7, 11, 15, 22, 26, and 36 weeks after attachment. During 35 weeks, only 4.1% (81 of 2,022) Lu. longipalpis recovered from the nets with the deltamethrin collared dogs were engorged, an anti-feeding effect of 96%. Mortality initially was over 90% and at 35 weeks was 35% with half of the sandflies dying in the first 2 h. In contrast, 83% of the 2,094 Lu. longipalpis recovered from the nets containing the untreated collared dogs were engorged and the mortality ranged from zero to 18.8% On one occasion with 1.1% dying in the first 2 h. Similar findings were found with Lu. migonei: of 2,034sandflies recovered over this period, only 70 were engorged, an anti-feeding effect of 96.5%, and mortality ranged from 91% initially to 46% at 36 weeks. In contrast, engorgement of controls ranged from 91 to 71% and a mortality ranged from 3.5 to 29.8%. These studies show that deltamethrin impregnated collars can protect dogs against Brazilian sand flies for up to eight months. Thus, they should be useful in a program to control human and canine visceral leishmaniasis.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/09/20 alle ore 17:12:23