CURRENT PROJECTS- PUBLIC HEALTH SURVEILLANCE AND RESPONSE

Worldwide, neonatal mortality remains high accounting for 46% of childhood deaths in 2015, with infectious diseases responsible for approximately 600 000 neonatal deaths. In sub-Saharan Africa, which carries a high burden of global childhood deaths, the aetiology of these infections and their resulting burden are not well understood.  Studies in Africa have been limited to tertiary-level institutions, with few, if any, population-based surveillance studies reporting on incidence risks or rates. Some of the contributing factors to this lack of data include under-utilisation/ unavailability of health care services for neonates, suboptimal specimen-taking to confirm an infectious disease diagnosis, limited capacity of diagnostic pathology laboratories to detect, identify and characterise pathogens, absence of appropriate denominator data for calculating incidence risks or rates and limited resources for setting up and maintaining population-based surveillance studies.

We aim to improve neonatal and child health by gaining a deeper understanding of the burden and aetiological factors of neonatal sepsis in urban and rural sub-Saharan Africa through the development of a two-tiered surveillance programme, with a focus on neonatal sepsis occurring at secondary-level institutions. The primary outcome is to determine the national burden of neonatal sepsis in the public sector in South Africa and provide a detailed characterization of risk factors, outcomes and antimicrobial-resistant pathogens associated with neonatal sepsis at secondary-level facilities by setting up a sustainable and in-country-led surveillance system, in order to monitor the impact of future public health interventions aimed at reducing sepsis in these young children.

Ultimately, these surveillance data can be used to address Sustainable Development Goal 3 by aiming to improve neonatal and child health by using a two-tiered laboratory-based surveillance programme to gain a deeper understanding of the aetiology and burden of neonatal and infant sepsis – with a future aim of addressing these factors and thus reducing neonatal morbidity and mortality in low- and middle-income settings.

The impact of this project will be seen on a number of levels:

  • Globally, this data will allow us to gain a better understanding of neonatal sepsis and the antimicrobial susceptibility and molecular relatedness of neonatal bacterial and fungal pathogens in a low- and middle-income country – particularly in secondary-level institutions serving less urbanised and rural communities.
  • Locally, the National Department of Health in South Africa could use these data to understand the burden of neonatal sepsis, to design appropriate interventions (such as antimicrobial stewardship and infection prevention and control programmes), to prioritise facilities requiring urgent intervention and to tailor these interventions for those at highest risk of neonatal sepsis.
  • The hospitals at which we will conduct enhanced surveillance will benefit from the additional information that will come from further characterisation of the isolates causing neonatal sepsis and gain a better understanding on how they can tailor their empiric antimicrobial regimens to better fit the spectrum of organisms that are being cultured.
  • Individual neonates at these hospitals will benefit from the doctors adjusting their empirical therapy accordingly.
  • We will strongly encourage enhanced surveillance sites to implement local antimicrobial stewardship and infection prevention and control programmes for neonatal units and will design facility-level dashboards based on their local surveillance data to allow them to monitor key indicators for neonatal sepsis.
  • Policymakers can use the data on the burden of disease, mortality and risk factors associated with neonatal sepsis and the aetiological patterns of pathogens causing neonatal sepsis to align their strategies on the Continuum of Maternal and Newborn Care to help meet South Africa’s goal to reduce neonatal sepsis by 84% by the year 2025.

 

By setting up this surveillance programme, we will facilitate future sustainable funding of the project and we will be able to objectively record the change in the incidence of neonatal sepsis over time as new interventions are implemented. Ultimately, we hope that policies put in place through the data generated by this project will save the lives of many newborn babies and improve the quality of life of others in the years ahead.

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