tetano
Editor, Senior Moderator
Sci Rep. 2014 Sep 22;4:6345. doi: 10.1038/srep06345.
Serological evidence of H7, H5 and H9 avian influenza virus co-infection among herons in a city park in Jiangxi, China.
Wang G1, Zhang T1, Li X1, Jiang Z2, Jiang Q1, Chen Q3, Tu X4, Chen Z3, Chang J5, Li L6, Xu B7.
Author information
Abstract
Extensive surveillance of influenza A viruses in different avian species is critical for understanding its transmission. Here, a breeding colony of Little Egrets and Black-crowned Night Herons was monitored both serologically and virologically in a city park of Jiangxi in 2009. A portion of herons had antibodies against H7 (52%), H5 (55%) and H9 (6%) subtype avian influenza virus (AIV) in egg yolk samples, and 45% had antibodies against different AIV serotypes (H5, H7 or H9) simultaneously. Greater numbers of samples with anti-AIV H5N1 recombination-4 (Re-4, clade 7) antibodies were measured compared with those containing anti-H5N1 Re-1 (clade 0) and Re-5 (clade 2.3.4) antibodies. Eight strains of H5 and 9 strains of H9 were isolated from poultry of nearby markets. These results indicate wild birds are at risk from infection and co-infection with H7, H5, and H9 subtypes. Investigation of wild bird infection might provide an early warning sign of potential novel AIVs circulating in the nearby poultry industry and even in human society.
PMID:
25242001
[PubMed - in process]
http://www.ncbi.nlm.nih.gov/pubmed/25242001
Serological evidence of H7, H5 and H9 avian influenza virus co-infection among herons in a city park in Jiangxi, China.
Wang G1, Zhang T1, Li X1, Jiang Z2, Jiang Q1, Chen Q3, Tu X4, Chen Z3, Chang J5, Li L6, Xu B7.
Author information
Abstract
Extensive surveillance of influenza A viruses in different avian species is critical for understanding its transmission. Here, a breeding colony of Little Egrets and Black-crowned Night Herons was monitored both serologically and virologically in a city park of Jiangxi in 2009. A portion of herons had antibodies against H7 (52%), H5 (55%) and H9 (6%) subtype avian influenza virus (AIV) in egg yolk samples, and 45% had antibodies against different AIV serotypes (H5, H7 or H9) simultaneously. Greater numbers of samples with anti-AIV H5N1 recombination-4 (Re-4, clade 7) antibodies were measured compared with those containing anti-H5N1 Re-1 (clade 0) and Re-5 (clade 2.3.4) antibodies. Eight strains of H5 and 9 strains of H9 were isolated from poultry of nearby markets. These results indicate wild birds are at risk from infection and co-infection with H7, H5, and H9 subtypes. Investigation of wild bird infection might provide an early warning sign of potential novel AIVs circulating in the nearby poultry industry and even in human society.
PMID:
25242001
[PubMed - in process]
http://www.ncbi.nlm.nih.gov/pubmed/25242001