Martin Kenny (Sligo-Leitrim, Sinn Fein) | Oireachtas source

I have one final point. It was mentioned earlier that we are able to vaccinate cattle in the same way we vaccinate humans. I absolutely understand the issues with marketing the product abroad if that were to be done but are there any examples of models in other countries where animals are vaccinated but are still accepted to market? Has any scenario in which that could happen been worked out? The problem is basically how to identify animals that have TB because of vaccination as opposed to infection. Is there a way to place a marker to determine that which could be negotiated with the markets?