1. Centre for Computational Evolution, The University of Auckland, Auckland 1010, New Zealand
2. School of Computer Science, The University of Auckland, Auckland 1010, New Zealand
3. School of Biological Sciences, The University of Auckland, Auckland 1010, New Zealand
4. Institute of Environmental Science and Research Limited (ESR), Poriua 5420, New Zealand
5. Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington WA 98109-1024, USA
6. School of Health, Victoria University of Wellington, Wellington 6012, New Zealand
7. Department of Microbiology and Immunology, University of Otago, Dunedin 9016, New Zealand