FIGURE 1.

Global distribution of the countries/states/regions participating in the study. The following states/territories are covered in the study update: Australia (New South Wales); Canada (Ontario state); China (Wenzhou and Luzhou regions); India (New Delhi, Mumbai and Maharashtra states); Russian Federation (Arkhangelsk, Moscow and Volvograd oblasts); Switzerland (Vaud county); USA (Virginia state). 29 out of 34 countries participating in the first global study [10] provided treatment outcome updates and two countries (Nigeria and Libya) were enrolled in the study at a later stage, providing data with treatment outcomes.