On Monday, the government announced a 10-year plan to eradicate the disease, saying about 150,000 cows would have to be slaughtered.
Prime Minister Jacinda Ardern said the government had "one shot" at eliminating the disease, at a cost of about $886 million to government and industry bodies.
The news is devastating for many farmers who have devoted their lives to the industry. Some fear their livelihoods will be destroyed.
But how did we get here? - A comprehensive summary of the unfolding of Mbovis in New Zealand