Home range of mallard (Anas platyrhynchos) and spot-billed duck (Anas poecilorhyncha) during the 2014/15 highly pathogenic avian influenza epidemics in the Republic of Korea

Kim, Eu-Tteum; Cho, Hyeong-Woo; Pak, Son-Il

doi:10.13041/jpvm.2021.45.4.153

Cited by 2 publications

(2 citation statements)

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“…Previous studies have also shown that HPAIV-positive poultry farms are usually geographically close to wild bird habitats, suggesting that these birds might play a key role in spreading AIVs (Jeong et al, 2014;Kim et al, 2021). Therefore, contact between wild birds and poultry farms should be prevented.…”

Section: Kjvsmentioning

confidence: 99%

Avian influenza virus surveillance in wild bird in South Korea from 2019 to 2022

Chae

Park

et al. 2022

Korean J. Vet. Serv

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Avian influenza viruses (AIVs) cause contagious diseases and have the potential to infect not only birds but also mammals. Wild birds are the natural reservoir of AIVs and spread them worldwide while migrating. Here we collected active AIV surveillance data from wild bird habitats during the 2019 to 2022 winter seasons (from September to March of the following year) in South Korea. We isolated 97 AIVs from a total of 7,590 fecal samples and found the yearly prevalence of AIVs was 0.83, 1.48, and 1.27, respectively. The prevalence of AIVs were generally higher from September to November. These findings demonstrate that a high number of wild birds that carry AIVs migrate into South Korea during the autumn season. The highest virus numbers were isolated from the species Anas platyrhynchos (72%; n=70), followed by Anas poecilorhyncha (15.4%; n=15), suggesting that each is an important host for these pathogens. Twenty-five hemagglutinin-neuraminidase subtypes were isolated, and all AIVs except the H5N8 subtype were found to be low-pathogenic avian influenza viruses (LPAIVs). Active surveillance of AIVs in wild birds could benefit public health because it could help to estimate their risk for introduction into animals and humans. Moreover, considering that 132 cases of human AIV infections have been reported worldwide within the last 5 years, active surveillance of AIVs is necessary to avoid outbreaks.

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Section: Kjvsmentioning

confidence: 99%

Avian influenza virus surveillance in wild bird in South Korea from 2019 to 2022

Chae

Park

et al. 2022

Korean J. Vet. Serv

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“…In these ducks, not only LPAI but also HPAI viruses are detected frequently (E.‐T. Kim et al., 2021; H.‐R. Kim et al., 2011; D.‐H.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the spatiotemporal risk of avian influenza between waterfowl and poultry farms during the annual cycle: A spatial prediction study focused on seasonal distribution changes in resident waterfowl in South Korea

Yun

Hong

Yang

et al. 2022

Transbounding Emerging Dis

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Previous studies and efforts to prevent and manage avian influenza (AI) outbreaks have mainly focused on the wintering season. However, outbreaks of AI have been reported in the summer, including the breeding season of waterfowl. Additionally, the spatial distribution of waterfowl can easily change during the annual cycle due to their lifecycle traits and the presence of both migrants and residents in the population. Thus, we assessed the spatiotemporal variation in AI exposure risk in poultry due to spatial distribution changes in three duck species included in both major residents and wintering migrants in South Korea, the mandarin, mallard and spot-billed duck, during wintering (October-March), breeding (April-June) and whole annual seasons. To estimate seasonal ecological niche variations among the three duck species, we applied pairwise ecological niche analysis using the Pianka index. Subsequently, seasonal distribution models were projected by overlaying the monthly ranges estimated by the maximum entropy model. Finally, we overlaid each seasonal distribution range onto a poultry distribution map of South Korea. We found that the mandarin had less niche overlap with the mallard and spot-billed duck during the wintering season than during the breeding season, whereas the mallard had less niche overlap with the mandarin and spot-billed duck during the breeding season than during the wintering season.Breeding and annual distribution ranges of the mandarin and spot-billed duck, but not the mallard, were similar or even wider than their wintering ranges. Similarly, the mandarin and spot-billed duck showed more extensive overlap proportions between poultry and their distributional ranges during both the breeding and annual seasons than during the wintering season. These results suggest that potential AI exposure in poultry can occur more widely in the summer than in winter, depending on sympatry with the host duck species. Future studies considering the population density and variable pathogenicity of AI are required.

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Home range of mallard (Anas platyrhynchos) and spot-billed duck (Anas poecilorhyncha) during the 2014/15 highly pathogenic avian influenza epidemics in the Republic of Korea

Cited by 2 publications

References 0 publications

Avian influenza virus surveillance in wild bird in South Korea from 2019 to 2022

Avian influenza virus surveillance in wild bird in South Korea from 2019 to 2022

Assessment of the spatiotemporal risk of avian influenza between waterfowl and poultry farms during the annual cycle: A spatial prediction study focused on seasonal distribution changes in resident waterfowl in South Korea

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