| surveillance of avian influenza virus in migratory water birds in eastern hokkaido, japan. | the epidemiological information has obtained on avian influenza virus (aiv) in eastern hokkaido, japan, where aiv surveillance has not been performed. cloacal or fecal samples obtained from migratory water birds were screened for aiv both by real-time reverse transcriptase polymerase chain reaction to detect the influenza a virus matrix (m) gene and by egg inoculation. between 2007 and 2009, a total of 2,488 samples were collected from various avian species in abashiri, kushiro, nemuro and tokac ... | 2010 | 20948168 |