The UK chould consider vaccinating flocks against bird flu - the head of virology at the animal and plant health agency - Professor Ian Brown tells Charlotte that new vaccines are needed, but given the severity of avian flu this year the UK should be ready to use them. A new study could shine a light on why crabs are dying off the North East coast of England, could it be chemical poisoning or algae that is to blame? And the start of a week looking at potatoes, how has the weather affected this year’s harvest? Presenter: Charlotte Smith Producer: Alun Beach Editor: Dimitri Houtart