1 Environment and Health Research Unit, South African Medical Research Council, Francie van Zijl Drive Parowvallei, Cape Town, Tygerberg, South Africa.
2 Biomedical Research and Innovation Platform, South African Medical Research Council, Francie van Zijl Drive Parowvallei, Cape Town, Tygerberg, South Africa.
3 Laboratory of Transmission, Control and Immunobiology of Infections (LTCII), Insitut Pasteur de Tunis, Tunis-Belvédère, Tunisia.