Wellcome Centre for Molecular Parasitology, University of Glasgow, Glasgow Biomedical Research Centre, Glasgow, UK. l.marcello.1@research.gla.ac.uk <l.marcello.1@research.gla.ac.uk>|Wellcome Centre for Molecular Parasitology, University of Glasgow, Glasgow Biomedical Research Centre, Glasgow, UK. l.marcello.1@research.gla.ac.uk <l.marcello.1@research.gla.ac.uk>|Wellcome Centre for Molecular Parasitology, University of Glasgow, Glasgow Biomedical Research Centre, Glasgow, UK. l.marcello.1@research.gla.ac.uk <l.marcello.1@research.gla.ac.uk>|Wellcome Centre for Molecular Parasitology, University of Glasgow, Glasgow Biomedical Research Centre, Glasgow, UK. l.marcello.1@research.gla.ac.uk <l.marcello.1@research.gla.ac.uk>|Wellcome Centre for Molecular Parasitology, University of Glasgow, Glasgow Biomedical Research Centre, Glasgow, UK. l.marcello.1@research.gla.ac.uk <l.marcello.1@research.gla.ac.uk>|Wellcome Centre for Molecular Parasitology, University of Glasgow, Glasgow Biomedical Research Centre, Glasgow, UK. l.marcello.1@research.gla.ac.uk <l.marcello.1@research.gla.ac.uk>|Wellcome Centre for Molecular Parasitology, University of Glasgow, Glasgow Biomedical Research Centre, Glasgow, UK. l.marcello.1@research.gla.ac.uk <l.marcello.1@research.gla.ac.uk>