West Nile virus in Southern Portugal, 2004

被引:57
作者
Esteves, A
Almeida, APG
Galao, RP
Parreira, R
Piedade, J
Rodrigues, JC
Sousa, CA
Novo, MT
机构
[1] Univ Nova Lisboa, Inst Higiene & Med Trop, Unidade Virol, P-1200 Lisbon, Portugal
[2] Univ Nova Lisboa, Inst Higiene & Med Trop, Unidade Entomol Med, Unidade Parasitol & Microbiol Med, P-1200 Lisbon, Portugal
关键词
Culex mosquitoes; Flavivirus; NS5; gene; Southern Portugal; West Nile virus;
D O I
10.1089/vbz.2005.5.410
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
West Nile virus (WNV) genomic RNA was detected by reverse transcription-polymerase chain reaction (RT-PCR) in six out of 57 mosquito pools collected in Southern Portugal, during the summer of 2004, yielding an infection rate (IR) of 2.8/1,000 mosquitoes. Phylogenetic analysis of a 217-nucleotide fragment of the NS5 coding region, amplified from Culex pipiens s.l. and Culex univittatus unfed females, demonstrated a close relationship with WNV strains circulating in the Mediterranean basin (Italy, 1998; France, 2000; Morocco, 2003). The data in this short report demonstrate the presence of WNV in mosquitoes in Southern Portugal and the need of permanent surveillance for viral activity within the country.
引用
收藏
页码:410 / 413
页数:4
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