1. Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston B15 2TT, UK
2. Host-Toxoplasma Interaction Laboratory, The Francis Crick Institute, London NW1 1AT, UK
3. HESCU (Human Embryo and Stem Cell Unit), The Francis Crick Institute, London NW1 1AT, UK