Contents

#### **Preface XI**


Marta Guimarães Cavalcanti and José Mauro Peralta

Chapter 8 **Praziquantel and Arachidonic Acid Combination — An Innovative Approach to the Treatment of Schistosomiasis 145** Hatem Tallima, Kevin Hadley and Rashika El Ridi

#### Chapter 9 **The Role of Chiggers as Human Pathogens 173** Paula Santibáñez, Ana M. Palomar, Aránzazu Portillo, Sonia Santibáñez and José A. Oteo
