Studies were performed in an endemic area of Dirofilaria immitis in Spain to genetically characterize the potential mosquito vector species present by means of DNA sequencing and elucidate which of these species may be involved in the transmission. The rDNA ITS-2 sequences of two Culex pipiens haplotypes, H1 and H2, Aedes (Aedimorphus) vexans, Fredwardsius vittatus, Ochlerotatus (Ochlerotatus) caspius, Anopheles (Anopheles) atroparvus, and Anopheles (Anopheles) plumbeus were obtained. F. vittatus and An. plumbeus were detected for the first time. Results on abundance, presence, and activity suggest that the month of August is the period of higher transmission risk, with C. pipiens, Ae. vexans, and An. atroparvus present simultaneously. Population studies indicate that C. pipiens may be considered the most important potential vector, while Ae. vexans, An. atroparvus, and O. caspius being involved in transmission only sporadically. The absence of larval dirofilarial infection agrees with the very low prevalences known in endemic areas.

Ribosomal DNA second internal transcribed spacer sequence studies of Culicid vectors from an endemic area of Dirofilaria immitis in Western Spain / BARGUES M., D; Morchon, R; LATORRE J., M; Cancrini, Gabriella; MAS COMA, S. SIMON F.. - In: PARASITOLOGY RESEARCH. - ISSN 0932-0113. - STAMPA. - 99:(2006), pp. 205-213. [10.1007/s00436-005-0107-6]

Ribosomal DNA second internal transcribed spacer sequence studies of Culicid vectors from an endemic area of Dirofilaria immitis in Western Spain

CANCRINI, Gabriella;
2006

Abstract

Studies were performed in an endemic area of Dirofilaria immitis in Spain to genetically characterize the potential mosquito vector species present by means of DNA sequencing and elucidate which of these species may be involved in the transmission. The rDNA ITS-2 sequences of two Culex pipiens haplotypes, H1 and H2, Aedes (Aedimorphus) vexans, Fredwardsius vittatus, Ochlerotatus (Ochlerotatus) caspius, Anopheles (Anopheles) atroparvus, and Anopheles (Anopheles) plumbeus were obtained. F. vittatus and An. plumbeus were detected for the first time. Results on abundance, presence, and activity suggest that the month of August is the period of higher transmission risk, with C. pipiens, Ae. vexans, and An. atroparvus present simultaneously. Population studies indicate that C. pipiens may be considered the most important potential vector, while Ae. vexans, An. atroparvus, and O. caspius being involved in transmission only sporadically. The absence of larval dirofilarial infection agrees with the very low prevalences known in endemic areas.
2006
01 Pubblicazione su rivista::01a Articolo in rivista
Ribosomal DNA second internal transcribed spacer sequence studies of Culicid vectors from an endemic area of Dirofilaria immitis in Western Spain / BARGUES M., D; Morchon, R; LATORRE J., M; Cancrini, Gabriella; MAS COMA, S. SIMON F.. - In: PARASITOLOGY RESEARCH. - ISSN 0932-0113. - STAMPA. - 99:(2006), pp. 205-213. [10.1007/s00436-005-0107-6]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/27
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