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20 March 2023 | Story Prof Danie Brand | Photo Supplied
Prof Danie Brand
Opinion article by Prof Danie Brand, Director of the Free State Centre for Human Rights at the University of the Free State.

Opinion article by Prof Danie Brand, Director of the Free State Centre for Human Rights at the University of the Free State
What does it mean to say one has a right to something, such as access to housing or to protest or to property? What are human rights? What do they ‘do’?

One often hears of human rights being asserted as if they give one an absolute claim to something specific and discrete, which can be enforced against anything and everyone else, irrespective of the impact on the interests (and rights) of others, as well as broader public goals or values.

Perhaps the clearest example of this was the way in which the right to ownership of land was understood under apartheid property law. Ownership then was an absolutely exclusive right: it entitled its holders to exclude everyone else without a countervailing right from their land, irrespective of circumstance or context. All a landowner had to prove before a court to obtain an eviction order if they sought to evict someone from their land, was that they had the right (owned the land) and that those they sought to evict had no countervailing right in law to be on the land. If the right was proved in this way, the remedy of exclusion through eviction followed automatically – the court had to grant the eviction order.

Constitutional right to peaceful protest

A more recent example of this view was on display in the way in which members of parliament complained about their removal from the house when they attempted to shut down the President’s State of the Nation Address through protest action. Many responded by saying their removal was unjustified because, by trying to stop the address from proceeding, they were exercising their constitutional right to peaceful protest. The assumption underlying this response is that the right to protest peacefully and unarmed entitles you to protest peacefully and unarmed in any way you see fit and regardless of the consequences for other people and for society at large.

With this view of rights, a right bestows on its holders a sphere of absolute inviolability – an abstract space within which they can do what the right entitles them to do (protest, hold property, speak, associate or whatever), subject to nothing and no-one else, with no limitations. Rights are seen as instruments through which to separate ourselves from other people and unilaterally impose our will and our interests on others. Rights operate as trumps, boundaries, conversation stoppers.

Understanding human rights

Fortunately, our constitution embodies a different vision or understanding of human rights. In various ways, our constitution makes it clear that what exactly our human rights entitle us to do, or have, or experience, is never abstractly fixed, immutable, or absolute, but must always be determined anew within context. Whenever we seek to exercise one of our human rights, its precise contours and limits must be determined in light of the circumstances prevailing at the time we seek to exercise it; the history of our country; the impact that our exercise thereof will have on the rights and interests of other people; and how our conduct in terms of the right aligns with the public interest and broader constitutional goals.

In this view of rights, our understanding of the right of ownership (which is of course not one of the human rights proclaimed in our constitution but is only indirectly protected in Section 25 of the Constitution) has been moulded into something entirely different from the apartheid conception. Landowners no longer have absolute, exclusive control over their land that simply arises from the fact that they have the right to ownership. If landowners today want to remove people occupying their land without any legal right to do so – in addition to and after proving their ownership – they must persuade a court that eviction would be just and equitable in light of all relevant circumstances (prevailing circumstances; interests of others, including the occupiers of their land; the public interest; constitutional goals) before they will succeed.

WATCH: The Power of Human Rights 




Building democracy

Likewise, if we seek to exercise our right to protest – in order to know what we would be entitled to do in terms of that right – we must consider how our protest will affect the rights and interests of others and whether that impact can be justified, and how the manner and form of our protest squares with constitutional goals such as building democracy. Equally, of course, if others object to our protest because of its impact on their rights and interest, they will have to contextualise their attempt to exercise their right to education, or academic freedom, or freedom of movement in light of our interests, the prevailing circumstances, the public interest, and constitutional goals such as fostering democracy, freedom of association, and freedom of speech.

That is, instead of rights in our constitutional order being abstract spheres of inviolability that can be exercised against others to protect or enforce our interests without consideration of context, keeping us apart, they are mechanisms to enable us to live together, to find accommodation between our disparate, perhaps conflicting, but often overlapping interests and concerns.

What is it then that our human rights do for us or entitle us to? Whenever our human rights-related interests are at stake, or if we rub up our fellow human beings with whom we cohabit the wrong way when our interests seem to clash, they entitle us to be taken equal account of. They require others (most importantly those in authority, usually the state) to include us and have concern for our interest, equal to the concern for others, in the conversation about what should happen and what we may or may not do. In this sense, rights do not keep us apart or stop conversations. Instead, they are acutely democratic mechanisms, making it possible for us to live together. ‘Only that?’, you may respond – but this is no small thing.

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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