Culling more effective than vaccinating

August 8, 2011

In economic and epidemiological terms, the practice of culling on farms within a radius of 1 to 3 km of infected farms is the best method of combating Highly Pathogenic Avian Influenza (HPAI). Vaccinating chickens within a radius of 3 km of an infected farm may at first appear to be cheaper, but it is less effective because the epidemic spreads further and lasts longer. This was one of the findings of a study performed by LEI together with the Central Veterinary Institute (CVI), both part of Wageningen UR.

Matters researched included the consequences of preventative culling and of vaccination programs within a radius of 1, 3 and 10 km of a farm infected with Highly Pathogenic Avian , also known as . The results of this research are described in the report ‘Control of Highly Pathogenic Avian Influenza’. This report demonstrates that an epidemic is shorter in duration when preventative culling takes place, but that this results in culling taking place on more farms than in the case of vaccinations. Emergency vaccinations are less effective in shortening the duration of the epidemic, although they do reduce the number of infected farms. The EU strategy of only implementing culling on infected farms is not effective enough in helping to control an outbreak in a densely-populated poultry-rearing area.

Strategies in the event of an HPAI epidemic

In the report, the researchers describe the various strategies available to the government in the event of an outbreak of HPAI. The report was commissioned by the Ministry of Economic Affairs, Agriculture & Innovation to provide a basis for decisions made in the event of a new HPAI . In this regard, account must be taken of the fact that large-scale preventative is increasingly less acceptable to society, according to the researchers. Society tends to call for alternative control measures such as vaccination.

More information: www.lei.dlo.nl/publicaties/PDF/2011/2011-032.pdf

Related Stories

Recommended for you

The 'love hormone' may quiet tinnitus

September 23, 2016

(HealthDay)—People suffering from chronic ringing in the ears—called tinnitus—may find some relief by spraying the hormone oxytocin in their nose, a small initial study by Brazilian researchers suggests.

Bile acid uptake inhibitor prevents NASH / fatty liver in mice

September 21, 2016

Drugs that interfere with bile acid recycling can prevent several aspects of NASH (nonalcoholic steatohepatitis) in mice fed a high-fat diet, scientists from Emory University School of Medicine and Children's Healthcare of ...

Arthritis drug may help with type of hair loss

September 22, 2016

(HealthDay)—For people who suffer from a condition that causes disfiguring hair loss, a drug used for rheumatoid arthritis might regrow their hair, a new, small study suggests.

New therapeutic target for Crohn's disease

September 20, 2016

Research from the Sanford Burnham Prebys Medical Discovery Institute (SBP) identifies a promising new target for future drugs to treat inflammatory bowel disease (IBD). The study, published today in Cell Reports, also indicates ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.