| a rare appearance of influenza a(h1n2) as a reassortant in a community such as yamagata where a(h1n1) and a(h3n2) co-circulate. | to find a new influenza subtype a(h1n2), 383 isolates identified as h1 by hemagglutination inhibition test between the 1998-1999 and 2001-2002 seasons in yamagata, japan, were screened by reverse transcription polymerase chain reaction. as a result, 3 strains from the 1999-2000 season were identified as possibly being a(h1n2). although several of their clones were found to be a(h1n2), a(h1n1) and a(h3n2), we could not confirm the origin of the a(h1n2) clones without the original specimens. these ... | 2003 | 12825897 |