Obasa, Adetayo Emmanuel http://orcid.org/0000-0003-0934-9586
Engelbrecht, Susan http://orcid.org/0000-0002-1318-5994
Jacobs, Graeme Brendon http://orcid.org/0000-0002-3259-1496
Funding for this research was provided by:
National Research Foundation (91467)
Poliomyelitis Research Foundation (15/59)
Article History
Received: 30 October 2017
Accepted: 6 March 2019
First Online: 17 April 2019
Competing Interests
: The authors declare no competing interests.