tetano
Editor, Senior Moderator
Emerg Infect Dis. 2018 Jul;24(7):1246-1256. doi: 10.3201/eid2407.172059.
[h=1]Avian Influenza A Virus Infection among Workers at Live Poultry Markets, China, 2013-2016.[/h] Ma MJ, Zhao T, Chen SH, Xia X, Yang XX, Wang GL, Fang LQ, Ma GY, Wu MN, Qian YH, Dean NE, Yang Y, Lu B, Cao WC.
[h=3]Abstract[/h] We conducted a 3-year longitudinal serologic survey on an open cohort of poultry workers, swine workers, and general population controls to assess avian influenza A virus (AIV) seroprevalence and seroincidence and virologic diversity at live poultry markets (LPMs) in Wuxi City, Jiangsu Province, China. Of 964 poultry workers, 9 (0.93%) were seropositive for subtype H7N9 virus, 18 (1.87%) for H9N2, and 18 (1.87%) for H5N1. Of 468 poultry workers followed longitudinally, 2 (0.43%), 13 (2.78%), and 7 (1.5%) seroconverted, respectively; incidence was 1.27, 8.28, and 4.46/1,000 person-years for H7N9, H9N2, and H5N1 viruses, respectively. Longitudinal surveillance of AIVs at 9 LPMs revealed high co-circulation of H9, H7, and H5 subtypes. We detected AIVs in 726 (23.3%) of 3,121 samples and identified a high diversity (10 subtypes) of new genetic constellations and reassortant viruses. These data suggest that stronger surveillance for AIVs within LPMs and high-risk populations is imperative.
[h=4]KEYWORDS:[/h] Avian influenza virus; China; incidence; influenza; influenza A virus; live poultry markets; poultry workers; reassortment; risk factors; seroconversion; seroprevalence; surveillance; viruses; zoonoses
PMID: 29912708 DOI: 10.3201/eid2407.172059
[h=1]Avian Influenza A Virus Infection among Workers at Live Poultry Markets, China, 2013-2016.[/h] Ma MJ, Zhao T, Chen SH, Xia X, Yang XX, Wang GL, Fang LQ, Ma GY, Wu MN, Qian YH, Dean NE, Yang Y, Lu B, Cao WC.
[h=3]Abstract[/h] We conducted a 3-year longitudinal serologic survey on an open cohort of poultry workers, swine workers, and general population controls to assess avian influenza A virus (AIV) seroprevalence and seroincidence and virologic diversity at live poultry markets (LPMs) in Wuxi City, Jiangsu Province, China. Of 964 poultry workers, 9 (0.93%) were seropositive for subtype H7N9 virus, 18 (1.87%) for H9N2, and 18 (1.87%) for H5N1. Of 468 poultry workers followed longitudinally, 2 (0.43%), 13 (2.78%), and 7 (1.5%) seroconverted, respectively; incidence was 1.27, 8.28, and 4.46/1,000 person-years for H7N9, H9N2, and H5N1 viruses, respectively. Longitudinal surveillance of AIVs at 9 LPMs revealed high co-circulation of H9, H7, and H5 subtypes. We detected AIVs in 726 (23.3%) of 3,121 samples and identified a high diversity (10 subtypes) of new genetic constellations and reassortant viruses. These data suggest that stronger surveillance for AIVs within LPMs and high-risk populations is imperative.
[h=4]KEYWORDS:[/h] Avian influenza virus; China; incidence; influenza; influenza A virus; live poultry markets; poultry workers; reassortment; risk factors; seroconversion; seroprevalence; surveillance; viruses; zoonoses
PMID: 29912708 DOI: 10.3201/eid2407.172059