Some countries are slowly moving toward the implementation of a two-way PH communication strategy. For example, in May 2010, shortly after the H1N1 pandemic, the public health authorities of New Zealand designed a rapid response initiative to have feedback from population on the communication campaign and on their risk perception. The project consisted in a study, which aimed to retrieve evidence-based information which health authorities could use to design tailored health communication campaigns during/after periods of pandemics.