| antibodies to flaviviruses in wild ducks captured in hokkaido, japan: risk assessment of invasive flaviviruses. | recently, the distribution of japanese encephalitis virus (jev) and west nile virus (wnv) has expanded into new territories. the invasion of wnv into japan is of great concern. the migration of birds is suggested to be involved in the expanded distribution of these flaviviruses. in this study, 92 wild ducks--20 anas poecilorhyncha (migratory breeders), 50 anas platyrhynchos (undetermined), 16 anas acuta (winter visitors), and 6 anas penelope (winter visitors)--were captured in autumn of 2005 and ... | 2009 | 19514809 |
| antibodies to h5 subtype avian influenza virus and japanese encephalitis virus in northern pintails (anas acuta) sampled in japan. | blood samples from 105 northern pintails (anas acuta) captured on hokkaido, japan were tested for antibodies to avian influenza virus (aiv), japanese encephalitis virus (jev), and west nile virus (wnv) to assess possible involvement of this species in the spread of economically important and potentially zoonotic pathogens. antibodies to aiv were detected in 64 of 105 samples (61%). of the 64 positives, 95% and 81% inhibited agglutination of two different h5 aiv antigens (h5n1 and h5n9), respecti ... | 2013 | 24059097 |
| entomological surveillance for flaviviruses at migratory bird stopover sites in hokkaido, japan, and a new insect flavivirus detected in aedes galloisi (diptera: culicidae). | to investigate the possible spread of west nile virus (wnv) into japan, we carried out entomological surveillance for flaviviruses at migratory bird stopover sites in hokkaido, japan, during 2003-2006. a total of 3,826 mosquitoes, identified as 15 species in five genera, were collected and 2,465 of these were grouped into 123 pools that were assayed for cytopathic effects on mosquito and mammalian cell cultures and for flavivirus rna by reverse transcription-polymerase chain reaction using flavi ... | 2012 | 22308786 |