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About Petro

Petro Rousseau is a Data Steward for the collaboration between the South African Medical Research Council and Government Outcomes Lab, at the Blavatnik School of Government, University of Oxford. The focus of her role is to advance the development of the ecosystem for Outcomes Based Approaches, Innovative Financing and Outcomes Based Contracting in South Africa and the Southern African region.

Petro is a health professional with extensive experience across the different levels of the health sector, in the public, private and non-governmental sector. She is known for a strategic and focused approach towards the use of people-centric, co-created solutions for health and well-being of individuals, families, communities and organisations.

Petro has been involved in various projects and different types of programme and project management that range from establishing national health initiatives to building digital and multisectoral business intelligence solutions for decision support. Some examples of her work at a country level include the development of the Focus for Impact approach as the HIV prevention Advisor for the South African National AIDS Council. Not only did the approach become a key part of the National Strategic Plan on HIV, TB and STIs 2017-2022, it also has been adopted as the implementation approach for the Western Cape province, South Africa for project implementation.

Petro’s professional network crosses various disciplines and sectors, both in South Africa, Africa and internationally. She has a PhD in Transdisciplinary Health Sciences.

Davies, Mary-Ann, Erna Morden, Petro Rousseau, Juanita Arendse, Jamy-Lee Bam, Linda Boloko, Keith Cloete et al. Outcomes of laboratory-confirmed SARS-CoV-2 infection during resurgence driven by Omicron lineages BA. 4 and BA. 5 compared with previous waves in the Western Cape Province, South Africa. International Journal of Infectious Diseases, 127 (2023): 63-68.

Waasila Jassat, Salim S Abdool Karim, Lovelyn Ozougwu, Richard Welch, Caroline Mudara, Maureen Masha, Petro Rousseau, Milani Wolmarans, Anthony Selikow, Nevashan Govender, Sibongile Walaza, Anne von Gottberg, Nicole Wolter, Pedro Terrence Pisa, Ian Sanne, Sharlene Govender, DATCOV author group, Lucille Blumberg, Cheryl Cohen, Michelle J. Groome. (2022) Trends in cases, hospitalisation and mortality related to the omicron BA.4/BA.5 sub-variants in South Africa.

Hannah Hussey, Mary-Ann Davies, Alexa Heekes, Carolyn Williamson, Ziyaad Valley-Omar, Diana Hardie, Stephen Korsman, Deelan Doolabh, Wolfgang Preiser, Tongai Maponga, Arash Iranzadeh, Sean Wasserman, Linda Boloko, Greg Symons, Peter Raubenheimer, Arifa Parker, Neshaad Schrueder, Wesley Solomon, Petro Rousseau, Nicole Wolter, Waasila Jassat, Cheryl Cohen, Richard Lessells, Robert J Wilkinson, Andrew Boulle, Nei-yuan Hsiao (2022) Assessing the clinical severity of the Omicron variant in the Western Cape Province, South Africa, using the diagnostic PCR proxy marker of RdRp target delay to distinguish between Omicron and Delta infections – a survival analysis, International Journal of Infectious Diseases, doi:

Waasila Jassat, Salim S Abdool Karim, Caroline Mudara, Richard Welch, Lovelyn Ozougwu, Michelle J. Groome, Nevashan Govender, Anne von Gottberg, Nicole Wolter, Milani Wolmarans, Petro Rousseau, DATCOV author group, Lucille Blumberg, Cheryl Cohen (2022) Clinical severity of COVID-19 patients admitted to hospitals during the Omicron wave in South Africa. medRxiv; doi:

Davies MA, Kassanjee R, Rousseau P, Morden E, Johnson L, Solomon W, Hsiao NY, Hussey H, Meintjes G, Paleker M, Jacobs T. Outcomes of laboratory-confirmed SARS-CoV-2 infection in the Omicron-driven fourth wave compared with previous waves in the Western Cape Province, South Africa. TMIH. 2022 April 12.

Bekker, Linda-Gail and Garrett, Nigel and Goga, Ameena and Fairall, Lara and Reddy, Tarylee and Yende-Zuma, Nonhlanhla and Kassanje, Reshma and Collie, Shirley and Sanne, Ian and Boulle, Andrew and Seocharan, Ishen and Engelbrecht, Imke and Davies, Mary-Ann and Champion, Jared and Chen, Tommy and Bennett, Sarah and Mametja, Selaelo and Semenya, Mabatlo and Moultrie, Harry and de Oliveira, Tulio and Lessells, Richard and Cohen, Cheryl and Jassat, Waasila and Groome, Michelle and Von Gottberg, Ann and Le Roux, Engelbert and Khuto, Kentse and Barouch, Dan H. and Hassan, Mahomed and Wolmarans, Milani and Rousseau, Petro and Bradshaw, Debbie and Mulder, Michelle and Jessica, Opie and Louw, Vernon and Jacobson, Barry and Rowji, Pradeep and Peter, Jonny and Takalani, Azwi and Odhiambo, Jackline and Mayat, Fatima and Takuva, Simbarashe and Corey, Lawrence and Gray, Glenda, 2022. Effectiveness of the Ad26. COV2. S vaccine in health-care workers in South Africa (the Sisonke study): results from a single-arm, open-label, phase 3B, implementation study. The Lancet, 399(10330), pp.1141-1153.doi:

Rousseau P. 2016. HIV hotspot mapping: an evidence-informed HIV response. PositionIT. Available from

Rousseau CPJ, Storie JM, Du Toit LE, Abdullah F and Slingers N. 2016. Mapping HIV prevalence hotspots: Overcoming the dual burden of data scarcity and spatial interpolation challenges. Available from