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Purchase of new livestock animals under various schemes from other states
While this is a welcome development from a demographical point of view, it has a serious negative impact on disease control programs.
Most areas adjoining our state have higher incidence of FMD with less developed disease control systems, there is a high chance that FMD carriers may be imported through inter-state purchase of new dairy animals.
A program where every new dairy animal imported into the state under government schemes has to be tested and certified free of FMD before the purchase is made has to be considered .
The most important step in FMD epidemic control is to quickly establish an infection perimeter.
All susceptible animals in infected and adjoining areas and areas with high risk of contagion be screened to identify early infections whenever an epidemic is reported.
This data should be used to establish the infection perimeter quickly and accurately.
This perimeter should then be used to implement quarantine measures in the infected area, and emergency vaccination should be performed around the perimeter to block spread, as is done today.
Once the epidemic is over, all the animals in the area should be screened again for the presence of carriers so that follow-up outbreaks do not occur.
FMD control measures: Implementation Challenges.
A clinical surveillance scheme that aims to detect silent FMD carriers cannot rely on clinical examination, and would require laboratory diagnosis.
Laboratory facility is limited .
Difficulty in sample management: need additional infrastructure and manpower
Migration control and monitoring programs that require ‘FMD-free’ certification of dairy animals before purchase would need a testing method, which would allow the veterinary doctor to test the animal at the point of purchase.
Similar challenges also exist for check-post screening.
A typical animal carriage vehicle will spend 30-45 minutes at the check-post for animal tagging and clearance. It is impossible to screen all the animals in the carriage within this time using conventional methods. Serum collection and off-site lab diagnosis is not an option here, as infected animals would have carried the infection into the state by the time the results are available.
In the case of disease screening to establish infection perimeters, quick results are very important
In all these measures, it is important to make sure that vaccinated, non-infected animals
Rapid FMD NSP test (available as ‘ubio quickVET FMD NSP’) uses recombinant FMD NSP antigens and monoclonal antibodies to detect the disease.
FMD 3AB monoclonal antibody on test line
Anti-NSP antibody in serum react with recombinant FMD antigen labelled with Colloidal gold
This labelled antigen-antibody complex is captured by the test area forming a red line.
Test procedure NEGATIVE Only control band visible POSITIVE Control and test bands visible INVALID No control line, test is invalid Collect Blood / whole blood assays can be formatted Separate serum Take out the test card from the aluminium foil pouch and place it on a horizontal surface. Add 3 drops of the specimen into sample hole ‘S’ Take 3 drops serum
Post vaccination sero-surveillance for NSP antibodies.
Border control of slaughter animals.
Screening of animals brought for dairy purpose.
Program flow chart for Screening Dairy Animals
Program Flow Chart for Screening Slaughter Animals The practical screening scenario 40 animals/Truck With 3 staff (veterinary doctor and/or livestock inspectors) the total time for one vehicle: 57 minutes. In addition to inspection, the check-post authority will also note animal identification numbers on the issued certificate and on individual animals. ubio can provide custom kits with paired random number identification stickers for this purpose