In the face of influenza, “preventive vaccination is the optimal vaccination strategy to minimize the number of outbreaks and the duration of the epidemic and should be carried out in the most sensitive and infectious poultry species in high transmission areas.” risk. Multiple administration (i.e., booster vaccines) can be used to improve protection.”
These are the conclusions of a recent EFSA report, in response to the request of the European Commission when asking the agency for an overview of the vaccines available against highly pathogenic avian influenza, their effectiveness against the viruses currently circulating and an evaluation of various vaccination plans to inform decisions about possible vaccination strategies.
EFSA was also mandated to evaluate surveillance and risk mitigation measures in vaccinated areas and farms. These issues will be addressed in a separate scientific opinion, the completion of which is expected in March 2024. It should be remembered that the EFA has already issued a scientific opinion on this topic in 2007.
recommendations
Furthermore, EFSA adds that in the event of an outbreak, it is recommended
emergency protection vaccination within 3 km of the outbreak in high-risk transmission areas. Vaccine efficacy should be monitored for all vaccination strategies.
Vaccination should complement and not replace other preventive and control measures, such as infection surveillance in birds, early detection and biosecurity, and is recommended as part of an integrated disease control approach.
The scientific opinion includes recommendations for future scientific studies on HPAI vaccines in terms of the types of vaccines that should be developed and for which bird species, the aspects of the vaccines that should be investigated and the type of studies that should be carried out. .
2023-10-16 04:03:49
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