Fig. 1From: Surveillance efforts after mass drug administration to validate elimination of lymphatic filariasis as a public health problem in VanuatuDivision of Evaluation Units (EUs), and locations of sentinel and spot check sites and hospitals. Locations of the sites surveyed between 2002 and 2012 are shown (excluding the C survey 90 villages). The inset shows detail of North Ambrym (Malampa province, EU1) and islands of Penama province (EU2)Back to article page