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Статья
Movements of birds and avian influenza from Asia into Alaska
2021
Asian-origin avian influenza (AI) viruses are spread in part by migratory birds. In Alaska, diverse avian hosts from Asia and the Americas overlap in a region of intercontinental avifaunal mixing. This region is hypothesized to be a zone of Asia-to-America virus transfer because birds there can mingle in waters contaminated by wild-bird-origin AI viruses. Our 7 years of AI virus surveillance among waterfowl and shorebirds in this region (1998-2004; 8,254 samples) showed remarkably low infection rates (0.06%). Our findings suggest an Arctic effect on viral ecology, caused perhaps by low ecosystem productivity and low host densities relative to available water. Combined with a synthesis of avian diversity and abundance, intercontinental host movements, and genetic analyses, our results suggest that the risk and probably the frequency of intercontinental virus transfer in this region are relatively low.
Цитирование
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Версии
- 1. Version of Record от 2021-04-27
Метаданные
Название журнала
- Emerging Infectious Diseases
Том
- 13
Выпуск
- 4
Страницы
- 547-552
Ключевые слова
- article; Asia; avian influenza; bird; controlled study; ecosystem; infection risk; Influenza virus; nonhuman; United States; virus isolation
Издатель
- Centers for Disease Control and Prevention (CDC)
Тип документа
- journal article
Тип лицензии Creative Commons
- CC
Правовой статус документа
- Свободная лицензия
Источник
- scopus
