http://www.bbc.co.uk/programmes/b05sxq9b#auto (go to 10mins 35 secs) - with a new variant of bird flu demonstrating a devastatingly mortality rate in the US, will culling halt the spread of H5N2?
Curling can hardly prevent the spread due to the mode of spread and also some infested birds do not get sick making it hard to detect and cull them out. When the birds that can get infected, because not all of them can, come into contact with the infected saliva or secretions or with the surfaces that have been contaminated by such secretions, they become infected too. So even dirt in cages is really dangerous because it infects the surfaces. Also food or water can become infected: if a healthy bird eats together with a sick one or a carrier, chances are that the healthy bird becomes sick too.
Regards,
Banson
Culling sick and healthy but exposed birds plus decontamination efforts are necessary to control such outbreaks.
Culling is important , but it should not be used alone. It is vital to find out practically speaking how the disease is moving from farm to farm. One should assume nothing, and double check all "biosecurity" measures and "biosecurity "plans in detail. It is often surprising how simple errors are made. The old suspects, people, boots, lorries, feed, (all deliveries), "biosecurity" at source factories of food and other deliverables, checking for cross contamination possibilities is paramount, checking the actual cleaning and/or disposing of boots, lorries, clothes, carcasses , checking decontamination protocols etc etc. To be very practical take the six themes disinfection, isolation, quarantine, hygiene, testing/screening live animals, stop cross contamination and apply to every relevant location. To be honest I am not an enthusiastic supporter of the term "biosecurity" and think it is better to be specific ( and practical) in what one is trying to carry out at each location. Finally with this disease one could be unlucky and wild birds might bring it on to a farm: in some countries nets are used to stop this.(this may not be practical elsewhere in the world) But I would still check out the routes where humans are involved first.
For new variant avian influenza culling is must to control the variant.
- Badges
- Science topic
- Similar topics
- Medicine
- Disease
- Infectious Diseases
- Immunization
- Vaccination
- Vaccines