Control Strategy for Echinococcus multilocularis
Figure 1. Study area of the anthelminthic baiting experiments in the conurbation of Zurich, Switzerland. Thirteen study plots were defined along the urban periphery during the 2-phased baiting period (phase 1, April 2000–October 2001; phase 2, November 2001–December 2003). Five different treatment schemes were used in these plots: co/co = no bait delivery during the whole study (n = 3 sites of 1 km2 ); b1/b3 = bait delivered monthly during the first phase and trimonthly during the second phase (n = 3); co/b3, no bait delivery during the first and trimonthly delivery during the second phase (n = 3); b1/co, monthly bait delivery during the first and no delivery during the second phase (n = 3); b1/b1, monthly bait delivery during the first and the second phase in a single study plot. This largest study plot comprised initially an area of 6 km2 (gray line) and finally an area of 2 km2 during the second baiting phase.