Badgers ultimately responsible for around half of TB in cattle
Oct. 11, 2013 — Badgers are ultimately responsible for roughly half of tuberculosis (TB) in cattle in areas with high TB prevalence, according to new estimates based on data from a previous badger culling trial.
Share This:
However, only around six per cent of infected cattle catch TB from badgers, with onward transmission between cattle herds accounting for the remainder, the study suggests.
The findings are published in the journal PLOS Currents: Outbreaks.
The role of badgers in spreading bovine TB has been debated intensely as part of discussions about whether badgers should be culled to control the disease.
The Randomised Badger Culling Trial, which ran from 1998 to 2005, found evidence that culling could reduce TB in herds inside culled areas, while increasing TB in areas nearby.
Mathematical models based on data from the trial were previously used to calculate an estimate of the proportion of TB in cattle that could ultimately be attributed to transmission from badgers.
The new paper, by scientists at Imperial College London, provides a more detailed analysis. It estimates that badgers ultimately account for 52 per cent of cattle TB in areas where prevalence in cattle is high. There is considerable uncertainty around this estimate, but the authors say that 38 per cent is a robust minimum value for the estimate. There is no robust maximum value.
Professor Christl Donnelly, from the Medical Research Council Centre for Outbreak Analysis and Modelling at Imperial, said: "These findings confirm that badgers do play a large role in the spread of bovine TB. These figures should inform the debate, even if they don't point to a single way forward."
The mathematical model suggested that 5.7 per cent* of transmission to cattle herds is from badgers to cattle, with the rest of the contribution from badgers resulting from onward transmission between cattle herds.
*The 95% confidence interval for this estimate is 0.9% to 25%.
Welcome to SUV System Ltd!
SUV System Ltd is ISO 90012008 Certified electronics distributor with 10 years of experiences.
We have built up long term business relationship with about many companies which are stockers and authorized agents. we have a steady and reliable supply to meet customer's demands to the greatest extent .Confidently, we are able to lower your cost and support your business with our years of professional service.
SUV System Ltd is Electronic Components Distributor Supplies,Find Quality Electronic Components Supplies Products IC(Integrated Circuits),Connectors,Capacitor,Resistors,Diodes,Transistors,LED at Suvsystem.com. Sourcing Other Energy, Environment, Excess Inventory Products from Manufacturers and Suppliers at Suvsystem.com
Electronic Components distributor:http://www.suvsystem.com
Connectors Distributor:http://www.suvsystem.com/l/Connectors-1.html
IC Distributor:http://www.suvsystem.com/l/IC(Integrated-Circuits)-1.html
LED Distributor:http://www.suvsystem.com/l/LED-1.html
Capacitor Distributor:http://www.suvsystem.com/l/Capacitor-1.html
Transistor Distributor:http://www.suvsystem.com/l/Transistors-1.html
Resistor Distributor:http://www.suvsystem.com/l/Resistors-1.html
Diode Distributor:http://www.suvsystem.com/l/Diodes-1.html
SUV System Ltd insists on the managing faith ofsincereness,speciality,foresight, win-win,so we build up stable-relationship customers located all over the world, including the States, Europe, Argentina, UAE, Malaysia, Australia,and India etc
we are focus on the following fields,and hope we can help you.
Resistor Arrays Current Sensors Resistors Voltage Regulators Transistors Kingbrigt LED About US Civil IC INTERSIL IC components Thin Film Resistors ST Transistors Cypress IC HARRIS IC NS IC Zener Diodes PANASONIC Resistors Resistor Networks Chip Ferrite Beads Dialight LED ON Transistors TOSHIBA Transistors PANASONIC IR transistor Industrial IC Metal Can Packages Transistors Resistors Thick Film Resistors TOSHIBA Diodes Military IC BB IC Texas Instruments(TI) IC Connectors Low Ohmic Resistors TI IC Fast Recovery Diodes Freescale Semiconductor IC(Integrated Circuits) Diodes Fairchild Semiconductor Transistors Multi-units Transistors MAXIM IC
http://www.suvsystem.com/a/6554.aspx
