About the Authors
Laboratory of Medical Epidemiology, Pasteur Institute of Tunis, Tunis, Tunisia
Regional Directorate of Public Health, Sidi Bouzid, Tunisia
The authors have declared that no competing interests exist.
Conceived and designed the experiments: AT SC JB NBA AB ZEA ABS. Performed the experiments: AT SC ABS. Analyzed the data: AT. Contributed reagents/materials/analysis tools: AT SC ABS JB NBA. Wrote the paper: AT SC JB NBA AB ZEA ABS.