About the Authors
Department of Parasitology, College of Medicine, National Taiwan University, Taipei, Taiwan, Republic of China
The authors have declared that no competing interests exist.
Conceived and designed the experiments: CHS. Performed the experiments: PWC YCH YJP CHW. Analyzed the data: PWC YCH YJP CHW CHS. Contributed reagents/materials/analysis tools: CHS. Wrote the paper: CHS.