Fig. 2

Geographical distribution of CD14 and NOD2 SNPs associated with risk of Mtb diseases. Studies originated from nine different countries. Most studies were from Asia (n=8), with China leading as study site (n=5) followed by Iran (n= 1), Turkey (n= 1), and South Korea (n= 1). Three studies were performed in the American continent: one in the USA, one in Mexico, and one in Colombia. Only one study was set in Europe (Poland), and one was performed in Africa (Uganda)