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Book (stand-alone)Legacy Document
Eight years of immediate technical assistance activities strengthening emergency preparedness for HPAI in Viet Nam
2018Also available in:
The history of the battle to control HPAI in Viet Nam is relatively short but within the past 10 years there have been many insights developed, as well as some twists and turns in the road to the current level of success. As the concerted HPAI effort supported by FAO is coming to an end, albeit to be adapted into a broader One Health approach to animal health and zoonotic diseases, it was considered timely that a retrospective overview of the programme be produced to capture key elements and lessons that have arisen. A key adjunct for this retrospective is the FAO document ‘Lessons from HPAI – a technical stocktaking of outputs, outcomes, best practices and lessons learned from the fight against highly pathogenic avian influenza in Asia 2005-2011’. Consistent with that stocktake, this retrospective on the HPAI control effort in Viet Nam does not attempt to be a comprehensive compilation of all the outputs and outcomes from the HPAI programme, but is rather a synopsis that captures the key experiences and challenges faced in Viet Nam in addressing this complex disease problem, concentrating on the USAID inputs but also with reference to other project areas as appropriate. This document examines the HPAI situation in Viet Nam at several points during the last 8 years through the prism of activities and outcomes in key areas such as coordination, surveillance, laboratory services, vaccination, biosecurity, socio-economics and communications and advocacy. -
Policy briefFAO alert on avian influenza
Risk of upsurge and regional spread through wild birds in Latin America and the Caribbean
2024Also available in:
FAO calls for increased vigilance and preparedness for avian influenza (AI) during the Southern hemisphere summer, as H5N1 viruses, especially those of clade 2.3.4.4b, continue to diversify genetically and spread geographically in the Americas. Given the ongoing situation in the region, the risk of (re-)introduction to countries along the wild bird migratory corridors is regarded as high. Importantly, FAO recommends countries and territories in Latin America and the Caribbean to put in place enhanced measures for early detection, diagnosis, outbreak response, and coordination with neighbouring countries under a One Health approach, in wild and domestic birds as well as mammals. -
BookletUpdated joint FAO/WHO/WOAH public health assessment of recent influenza A(H5) virus events in animals and people
Assessment based on data as of 18 November 2024
2024Also available in:
No results found.During 2020, high pathogenicity avian influenza (HPAI) A(H5N1) clade 2.3.4.4b viruses arose from previously circulating influenza A(H5Nx) viruses and spread predominantly via migratory birds to many parts of Africa, Asia and Europe. This epizootic event has led to unprecedented numbers of deaths in wild birds and caused outbreaks in poultry. In late 2021, these viruses crossed the Atlantic Ocean to North America and subsequently reached South America in October 2022. Over the past few years, there have been increased detections of A(H5N1) viruses in non-avian species globally including wild and domestic (companion and farmed) terrestrial and marine mammals, with recent cases in livestock in the United States of America. The majority of A(H5N1) viruses characterized genetically since 2020 belong to the haemagglutinin (HA) H5 clade 2.3.4.4b, with some regional exceptions. Since the last joint assessment of August 2024, at least 33 additional human cases of infection with A(H5) viruses have been reported. Of these, 30 were reported from the USA.FAO, WHO, and WOAH jointly updated their assessment of the risk of zoonotic transmission (i.e., animal to human) considering additional information made available since the previous assessment of 14 August 2024. This update is limited to the inclusion of additional information being made available globally. Due to the potential risk to human health and the far-reaching implications of the disease on the health of wild bird and other animal populations, the use of a One Health approach is essential to tackle avian influenza effectively, to monitor virus circulation, to prevent within species transmission and to prevent human infections from exposure to animals.
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