Seven Te Tai Tokerau iwi have asked to be allowed to trade their fisheries assets on the open market; Clinicians say they might have a rheumatic fever vaccine in late-stage trials in three years time; A First Nation government representative from Canada is in New Zealand to learn more about Whanau Ora so it can develop a similar policy in its own nation; A researcher at the University of Canterbury says the health of tangata whenua can be improved through the use of traditional practices such as Maori medicine.