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01 November 2024 | Story André Damons | Photo Supplied
Dr Nomakhuwa Tabane
Dr Nomakhuwa Tabane is the Head of the Department of Paediatrics and Child Health at the University of the Free State.

The first 1 000 days of a baby’s life, from conception to the age of two, constitute a critical period during which children’s brains form as many as 1 000 neural connections every second – a pace that will not be repeated in their lifetime.

These connections are the building blocks of every child’s future, which makes the role of a campaign like the First 1 000 Days vitally important. It highlights the importance of stimulation and learning from the earliest possible moments, good nutrition for expectant mothers, prevention of malnutrition of children, and early diagnosis of chronic, life-threatening illnesses and developmental disorders.

This is according to Dr Nomakhuwa Tabane, Head of the Department of Paediatrics and Child Health at the University of the Free State (UFS). The campaign was promoted by Dr Tabane’s department in partnership with the Mother and Child Academic Hospital (MACAH) Foundation.  The annual campaign kicks off on 1 November each year.

“There are certain factors that can interfere with this process and result in irreversible damage to children’s brain development, poor growth, and compromised immunity. Those conditions include prematurity, ischaemic brain damage, and infections. These are also the top contributors to the neonatal mortality.

“In the one-month to 49-month-old period, the causes of mortality and morbidity that affect brain development and growth include respiratory illnesses like pneumonia, diarrhoeal diseases, and malnutrition,” says Dr Tabane. 

Aims of the campaign

The First 1 000 Days initiative promotes excellent mother, infant, and child healthcare by supporting community-based programmes that drive the message of the importance of the first 1 000 days of life to teenagers, young adults, healthcare workers, and the public. This initiative aims to bring about interventions that can address the Under-5 Mortality Rates (U5MR), including Neonatal Mortality Rates (NMR), Infant Mortality Rates (IMR), and Perinatal Mortality Rates (PMR).

“The campaign also aims to improve the growth and development of children in their first 1 000 days of life from conception until they are two years old. It also aims to improve expectant mothers’ health and prevent and decrease maternal mortality in the Free State, as well as to prevent unwanted pregnancies, focusing on decreasing teenage pregnancies.”

According to Dr Tabane, the 2020 South African UN Inter-agency Group for Child Mortality Estimation (UNIGME) estimate for U5MR was 32 deaths per 1 000 live births, NMR of 11 per 1 000 live births, and infant mortality rate (IMR) of 26 per 1 000 live births as compared to the Medical Research Council (MRC) estimate of U5MR of 28 per 1 000 live births, NMR of 12 per 1 000 live births and IMR of 21 per 1 000 live births (15).

South Africa behind other BRICS countries

Based on the 2020 UNIGME report, says Dr Tabane, South Africa has achieved the Sustainable Development Goals (SDG) goals of NMR and the U5MR. South Africa’s indicators were much better than the UNIGME and the MRC 2020 estimates, but it still falls behind other BRICS countries.

“In contrast to other BRICS countries (Brazil, Russia, India, China, and South Africa), UNIGME reports that in the same reporting period of 2020, China’s U5MR was seven per 1 000 live births, Brazil's 15 per 1 000 live births, and Russia's five per 1 000 live births (16). In 2020, the South African national in-hospital neonatal mortality rate (NMR) based on DHIS data was 12,0 per 1 000 live births; the infant mortality rate (IMR) was 15.1 per 1 000 live births, and the under-5 mortality (U5 MR) rate was 16.9 per 1 000 live births, with differences amongst provinces,” says Dr Tabane.

The first 1 000 days campaign’s interventions include education to prevent illnesses and deaths and promote good health, growth, and development. While many training programmes on child survival strategies have been rolled out (e.g., MSSN, HBB, ETAT, AANC, ESMOE, and IMCI), in-service training still has significant gaps.

Other interventions include preventing unwanted and unplanned pregnancies, providing healthcare support for therapeutic and interventional care, strengthening the implementation of the existing strategies developed by the Department of Health to reduce Maternal and Child Mortalities, and monitoring and evaluating the interventions.

News Archive

Research eradicates bacteria from avocado facility
2017-01-17

 Description: Listeria monocytogenes Tags: Listeria monocytogenes

Listeria monocytogenes as seen under an electron
microscope. The photo was taken with a transmission
electron microscope at the microscopy unit of the UFS.
Bacteriophages (lollipop-like structures) can be seen
next to the bacterial cells.
Photo: Supplied

“The aim of my project was to identify and characterise the contamination problem in an avocado-processing facility and then to find a solution,” said Dr Amy Strydom, postdoctoral fellow in the Department of Microbial Biochemical and Food Biotechnology at the University of the Free State (UFS).

Her PhD, “Control of Listeria monocytogenes in an Avocado-processing Facility”, aimed to identify and characterise the contamination problem in a facility where avocados were processed into guacamole. Dr Strydom completed her MSc in food science in 2009 at Stellenbosch University and this was the catalyst for her starting her PhD in microbiology in 2012 at the UFS. The research was conducted over a period of four years and she graduated in 2016. The research project was funded by the National Research Foundation.

The opportunity to work closely with the food industry further motivated Dr Strydom to conduct her research. The research has made a significant contribution to a food producer (avocado facility) that will sell products that are not contaminated with any pathogens. The public will then buy food that is safe for human consumption.


What is Listeria monocytogenes?

Listeria monocytogenes is a food-borne pathogenic bacterium. When a food product is contaminated with L. monocytogenes, it will not be altered in ways that are obvious to the consumer, such as taste and smell. When ingested, however, it can cause a wide range of illnesses in people with impaired immune systems. “Risk groups include newborn babies, the elderly, and people suffering from diseases that weaken their immune systems,” Dr Strydom said. The processing adjustments based on her findings resulted in decreased numbers of Listeria in the facility.

The bacteria can also survive and grow at refrigeration temperatures, making them dangerous food pathogens, organisms which can cause illnesses [in humans]. Dr Strydom worked closely with the facility and developed an in-house monitoring system by means of which the facility could test their products and the processing environment. She also evaluated bacteriophages as a biological control agent in the processing facility. Bacteriophages are viruses that can only infect specific strains of bacteria. Despite bacteriophage products specifically intended for the use of controlling L. monocytogenes being commercially available in the food industry, Dr Strydom found that only 26% of the L. monocytogenes population in the facility was destroyed by the ListexP100TM product. “I concluded that the genetic diversity of the bacteria in the facility was too high and that the bacteriophages could not be used as a control measure. However, there is much we do not understand about bacteriophages, and with a few adjustments, we might be able to use them in the food industry.”

Microbiological and molecular characterisation of L. monocytogenes

The bacteria were isolated and purified using basic microbiological culturing. Characterisation was done based on specific genes present in the bacterial genome. “I amplified these genes with polymerase chain reaction (PCR), using various primers targeting these specific genes,” Dr Strydom said. Some amplification results were analysed with a subsequent restriction digestion where the genes were cut in specific areas with enzymes to create fragments. The lengths of these fragments can be used to differentiate between strains. “I also compared the whole genomes of some of the bacterial strains.” The bacteriophages were then isolated from waste water samples at the facility using the isolated bacterial strains. “However, I was not able to isolate a bacteriophage that could infect the bacteria in the facility.

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