About the Authors

Genevie M. Ntshoe

genevien@nicd.ac.za (GMN); cherylc@nicd.ac.za (CC)

Affiliation Centre for Vaccines and Immunology, National Institute for Communicable Diseases (NICD) of the National Health Laboratory Service (NHLS), Johannesburg, South Africa

Johanna M. McAnerney

Affiliation Centre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa

Brett N. Archer

Affiliation Division of Public Health Surveillance and Response, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa

Sheilagh B. Smit

Affiliation Centre for Vaccines and Immunology, National Institute for Communicable Diseases (NICD) of the National Health Laboratory Service (NHLS), Johannesburg, South Africa

Bernice N. Harris

Affiliation School of Health Systems and Public Health, University of Pretoria, Pretoria, South Africa

Stefano Tempia

Affiliation Influenza Division, United States Centers for Disease Control and Prevention (CDC), Attaché to the NICD-NHLS, Johannesburg, South Africa

Mirriam Mashele

Affiliation Centre for Vaccines and Immunology, National Institute for Communicable Diseases (NICD) of the National Health Laboratory Service (NHLS), Johannesburg, South Africa

Beverley Singh

Affiliation Centre for HIV and STI, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa

Juno Thomas

Affiliation Division of Public Health Surveillance and Response, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa

Ayanda Cengimbo

Affiliation Division of Public Health Surveillance and Response, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa

Lucille H. Blumberg

Affiliation Division of Public Health Surveillance and Response, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa

Adrian Puren

Affiliation Centre for Vaccines and Immunology, National Institute for Communicable Diseases (NICD) of the National Health Laboratory Service (NHLS), Johannesburg, South Africa

Jocelyn Moyes

Affiliation Centre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa

Johann van den Heever

Affiliation Expanded Programme on Immunisation in South Africa (EPI SA), Department of Health, Pretoria, South Africa

Barry D. Schoub

Affiliation Centre for Vaccines and Immunology, National Institute for Communicable Diseases (NICD) of the National Health Laboratory Service (NHLS), Johannesburg, South Africa

Cheryl Cohen

genevien@nicd.ac.za (GMN); cherylc@nicd.ac.za (CC)

Affiliation Centre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Data management: GMN JMM BNA. Revised article for important intellectual content: BNA SBS BNH ST AP JvdH BDS CC. Outbreak Response: JT AC LHB. Acquisition of vaccination coverage data: JvdH. Conceived and designed the experiments: JM CC. Performed the experiments: SBS MM BS. Analyzed the data: GMN ST. Wrote the paper: GMN.