H7N9 refers to avian influenza A viruses of the H7 hemagglutinin subtype that can infect humans and pose a pandemic threat [1][2]. The H7N9 viruses emerged in humans in 2013 and were subsequently nearly eliminated in China [1].
Aperçu de la maladie
Avian H7N9 influenza viruses represent a potential pandemic threat to global public health and have caused severe human infection with high mortality [1][2]. China nearly eliminated the pervasive H7N9 viruses that emerged in 2013 through a cull-plus-vaccination strategy [1]. Adjuvanted H7N9 vaccines may be the optimal available option in a pandemic setting [2].
Lire le profil clinique et épidémiologique complet 6
H7N9 infection in humans is severe and associated with high mortality [2]. The viruses have caused severe infection in affected individuals [1][2].
H7N9 viruses emerged in humans in 2013 and were nearly eliminated in China through public health interventions [1]. Globally, H5 and H7 subtype avian influenza viruses combined have caused 2634 human cases with over 1000 deaths [1].
H5 influenza viruses are spread by migratory wild birds and have caused three waves of influenza outbreaks across multiple continents, with the third wave that started in 2020 being ongoing [1].
China adopted a cull-plus-vaccination strategy that nearly eliminated H7N9 viruses and limited poultry losses [1]. Clinical trials of H7N9 vaccines show that non-adjuvanted high-dose formulations yield limited immunogenicity and more adverse events, whereas adjuvanted formulations improve immune responses and may be the optimal pandemic option [2]. Among adjuvants, aluminium showed safety advantages while non-aluminium adjuvants saved vaccine dose [2].
- 1 Shi J et al. Alarming situation of emerging H5 and H7 avian influenza and effective control strategies. Emerg Microbes Infect. 2023 Dec. PMID: 36458831. doi: 10.1080/22221751.2022.2155072. PubMed: https://pubmed.ncbi.nlm.nih.gov/36458831/
- 2 Zheng D et al. Comparative effectiveness of H7N9 vaccines in healthy individuals. Hum Vaccin Immunother. 2019. PMID: 30148691. doi: 10.1080/21645515.2018.1515454. PubMed: https://pubmed.ncbi.nlm.nih.gov/30148691/
- J09
- 1E30.0
Chargement des données actuelles…
Tendances nationales
Choisissez le pays, la source et la mesure ; chaque courbe conserve sa période et sa définition de déclaration.
Couverture des données
Pays et régions déclarants
La carte montre la couverture déclarée. Choisissez une mesure ou ouvrez un lieu coloré pour consulter ses données.
Chargement des données actuelles…
Profil de surveillance
Saisonnalité du pays sélectionné
Consultez les valeurs mensuelles d’un pays par année. Les cases vides indiquent une valeur non publiée.
Radar de recherche
Recherches récentes associées
Establishment and preliminary evaluation of an RT-ERA combined with CRISPR/Cas12a assay for detection of H5 and H7 influenza viruses.
Frontiers in cellular and infection microbiology
Advancing A(H5N1) influenza risk assessment in ferrets through comparative evaluation of airborne virus shedding patterns
Nature Communications
Responding to avian influenza in poultry farms in Victoria, Australia.
Bulletin of the World Health Organization
Based on the MaxEnt model the analysis of influencing factors and simulation of potential risk areas of human infection with avian influenza A (H7N9) in China.
Frontiers in cellular and infection microbiology
Alarming situation of emerging H5 and H7 avian influenza and effective control strategies
Emerging Microbes & Infections
5 publications associées sur 27 affichées.
Les liens bibliographiques servent à découvrir des travaux et ne modifient ni ne valident la série de surveillance ci-dessus.
Chargement des alertes officielles…
Téléchargement et méthodes
Choisissez une période et téléchargez les fichiers CSV, JSON ou XLSX.

