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24 November 2022 | Story Andre Damons | Photo Supplied
Thaba Nchu health web new
One Health Warriors with the scholar pledge cloth after scholars made a pledge to take care of their pets at St Paul’s Primary School in Thaba Nchu.

International One Health Day is held annually on 3 November. The goal of the day is to educate and increase awareness of One Health to encourage a collaborative effort between multiple disciplines, promoting the concept that the interactions between humans, animals, and the environment impact the health of people, animals, plants, and the environment.

The aptly named One Health Warriors, a student group comprising postgraduate students from the Division of Virology at the University of the Free State (UFS), was formed in 2016. The One Health Warriors annually participate in arranging a One Health event to celebrate International One Health Day. What is One Health? What zoonotic diseases should the public be aware of? How do zoonoses affect the healthcare provider? These are all questions that the student group addresses in their events.  

In 2022, the One Health Warriors targeted scholars to participate in their annual event. It is important for scholars to start learning about One Health from an early age, because most of them do not understand the importance of taking care of their pets. They are not always aware of the diseases that can be transmitted from animals to humans and how to protect themselves.

It is for this reason that postgraduate students from the Division of Virology took One Health awareness and science communication to the classrooms of Ratau Primary and St. Pauls Primary schools in Thaba Nchu, Bloemfontein. Grade 6 scholars were included in the events and a total of 224 learners participated in the day. 

According to Prof Felicity Burt, an expert in arbovirology in the Division of Virology and the National Health Laboratory Services (NHLS) – who holds an NRF-DST South African Research Chair in Vector-borne and Zoonotic Pathogens Research – and Tumelo Sekee, PhD student and research assistant in the School of Pathology, they decided to start with primary schools as they believe it is good to start teaching scholars from an early age to take care of their pets and understand the importance of One Health. 

Making the youth aware 

The focus was on making the youth aware of diseases transmitted from animals to humans, how to protect themselves from zoonotic diseases, and how to take care of their pets. They used role-play activities in which the learners were educated about the risk of contracting the rabies virus and some of the signs that may be shown by rabid dogs. The learners also got to learn about the importance of reporting any bites and getting appropriate treatment from the clinics.  

Rabies circulates within this area and is a high risk for children who play with stray dogs. They were advised about vaccines to protect their dogs against infection and thereby protecting themselves. They were shown how to remove ticks from the dogs, and the importance of not eating a dead animal whose cause of death is unknown. 

“The children were advised on the potential for tuberculosis (TB bovis) to occur in their livestock and the potential for spread to humans. Pictures were circulated among the learners showing them what a rabid dog or animal might look like and how an animal with TB bovis may present. The learners were taught about the importance of hand washing. In the finale of the event, the learners made a pledge to take care of their pets, and this was confirmed with painted hands on our One Health posters,” says Tumelo Sekee.

According to Prof Burt, One Health is an approach that recognises that the health of people is closely connected to the health of animals and their shared environment. One Health is not new, but it has become more important in recent years. “This is partly because many factors have influenced the way humans interact with animals (domestic and wild), plants, and our environment. These changes have led to the spread of known (endemic) pathogens and the emergence of novel pathogens and zoonotic diseases, which are diseases that can spread between animals and people. The recent pandemic is an example of how zoonotic transmission of a pathogen from wildlife to humans has a devastating public health impact,” explains Prof Burt.

Positive feedback
Sekee says the feedback was extremely positive; this may be because the communication was done in the learners’ mother tongue, Setswana, which made it easy for them to understand. Says Sekee: “There were many questions and discussions after the play, which suggested that the scholars showed interest in learning about a One Health approach. The scholars were also enthusiastic about participating in future events of the One Health warriors.”

The postgraduate One Health group previously also visited schools in Botshabelo and Bloemfontein, as well as farm workers in Kroonstad. They now plan to visit other schools in the Free State so that the One Health message can reach as many people as possible.  

News Archive

Research on cactus pear grabs attention of food, cosmetic and medical industry
2015-02-18

Cactus pear
Photo: Charl Devenish

The dedicated research and development programme at the UFS on spineless cactus pear (Opuntia ficus-indica) – also known as prickly pear – has grown steadily in both vision and dimension during the past 15 years. Formal cactus pear research at the UFS started with the formation of the Prickly Pear Working Group (PPWG) in June 2002. It has since gone from strength to strength with several MSc dissertations and a PhD thesis as well as popular and scientific publications flowing from this initiative.

According to Prof Wijnand Swart from the Department of Plant Sciences, the UFS is today recognised as a leading institution in the world conducting multi-disciplinary research on spineless cactus pear.

Cactus pear for animal feed

Increasing demands on already scarce water resources in South Africa require alternative sources of animal feed – specifically crops that are more efficient users of water. One alternative with the potential for widespread production is spineless cactus pear. It is 1.14 x more efficient in its use of water than Old man saltbush, 2.8 x more efficient than wheat, 3.75 x more efficient than lucerne and 7.5 x more efficient than rangeland vegetation.

“Studies on the use of sun-dried cactus pear cladodes suggest that it has the potential to provide some 25% of the basic feed resources required by South Africa’s commercial ruminant feed manufacturing sector,” says Prof HO de Waal of the Department of Animal, Wildlife and Grassland Sciences at the UFS.

Until recently, research has focused extensively on the use of cactus pear as drought fodder. However, this is now beginning to shift, with growing interest in the intensive production of spineless cactus pear for other types of animal feed. One example is the spineless cactus pear fruit, produced seasonal, yielding large quantities of fruit in a relatively short period of a few months in summer. Unless kept in cold storage, the fruit cannot be stored for a long period. Therefore, a procedure was developed to combine large volumes of mashed cactus pear fruit with dry hay and straw and preserve it for longer periods as high moisture livestock feed, kuilmoes – a high water content livestock feed similar to silage.

Cactus pear and Pineapple juice
Photo: Charl Devenish

Cactus pear for human consumption

“In addition to its use as a livestock feed, cactus pear is increasingly being cultivated for human consumption. Although the plant can be consumed fresh as a juice or vegetable, significant value can be added through processing. This potential is considerable: the plant can be pickled; preserved as a jam or marmalade; or dried and milled to produce baking flour. It can also serve as a replacement of egg and fat in mayonnaise,” said Dr Maryna de Wit from the Department of Microbial, Biochemical and Food Biotechnology.

The extraction of mucilage from fresh cladodes can form a gelling, emulsifier, and fat-replacing agent commonly found in food products such as mayonnaise and candy. During an information session to the media Dr De Wit and her team conducted a food demonstration to showcase the use of the cladodes in a juice, chicken stir-fry, biscuits and a salad.

The extrusion of cactus pear seed oil provides a further lucrative niche product to the array of uses. These include high-value organic oil for the cosmetic sector, such as soap, hair gel and sun screens.

The cladodes and the fruit also have medicinal uses. It has anti-viral, anti-inflammatory, pain killing and anti-diabetic agents. It is also high in fibre and can lower cholesterol. The fruit also prevents proliferation of cells and suppresses tumour growth and can even help to reduce a hangover.

In South Africa the outdated perception of cactus pears as thorny, alien invaders, is rapidly disappearing. Instead, farmers now recognise that cactus pear can play a vital role as a high yielding, water-efficient, multi-use crop, said Prof de Waal and the members of the Cactus Pear Team.

Facebook photo gallery
Dagbreek interview with Dr Maryna de Wit  

Research on cactus pear (read the full story)

For more information or enquiries contact news@ufs.ac.za

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