We are seeking an excellent postdoctoral researcher to work on the epidemiology and mathematical modelling of poliovirus transmission, including analysis of global surveillance data maintained by the WHO. This post is funded by the Bill and Melinda Gates Foundation and focuses on the epidemiology of vaccine-derived polioviruses in Africa and the impact of campaigns with oral and inactivated vaccines (e.g. see Blake et al. New Engl J Med 2018). You will work closely with the polio team in the vaccine epidemiology research group and have access to excellent peer support from with other members of the Department of Infectious Disease Epidemiology and the MRC Centre for Global Infectious Disease Analysis. You will also communicate and meet with task teams from the GPEI and with staff at the Bill and Melinda Gates Foundation. The post would be especially suited to someone with experience in epidemiological analysis or mathematical modelling of infectious disease data but we will also consider applications from enthusiastic individuals with appropriate mathematical, statistical or biological skills.