In a statement, Tegan explains to fans: "It is with the heaviest heart that I type this. I became very ill on the final days of our European tour in February, and even while taking antibiotics and steroids, I still lost my voice completely.
"After a second round of antibiotics and steroids upon returning home last week, I still have not recovered my voice or received a clean bill of health. At the recommendation of my GP, I have decided to postpone our Australian/New Zealand tour to continue my recovery and ensure I don't do longer-term damage to my singing voice and health.
"It is a point of pride that we always follow through with our commitments, and in 17 years of touring I can count on one hand the number of shows we've had to cancel. I send our deep apologies to our fans, our team in Australia and New Zealand, as well as our promoters.
"To fans who have made travel plans and those who will be disappointed to hear this news, please know that we will be missing you all this coming week and promise to make it up to you soon. To our support acts - Theia, Bec Sandridge, and Montaigne - we are truly sorry to not be able to share the stage with you."
