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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 by experts published in Nature
2011-06-02

 
The members of the research group are, from the left, front: Christelle van Rooyen, Mariana Erasmus, Prof. Esta van Heerden; back: Armand Bester and Prof. Derek Litthauer.
Photo: Gerhard Louw

A  research article on the work by a team of experts at our university, under the leadership of Prof. Esta van Heerden, and counterparts in Belgium and the USA has been published in the distinguished academic journal Nature today (Thursday, 2 June 2011).

The article – Nematoda from the terrestrial deep subsurface of South Africa – sheds more light on life in the form of a small worm living under extreme conditions in deep hot mines. It was discovered 1,3 km under the surface of the earth in the Beatrix Goldmine close to Welkom and is the first multi-cellular organism that was found so far beneath the surface of the earth. The worm (nematode) was found in between a rock face that is between 3 000 and 12 000 years old.

The research can shed some new light on the possibility of life on other planets, previously considered impossible under extreme conditions. It also expands the possibilities into new areas where new organisms may be found.

These small invertebrates live in terrestrial soil subjected to stress almost for 24 hours They live through sunshine, rain, scorching temperatures and freezing conditions. Through time they developed a means to cope with harsh conditions. Terrestrial nematodes (roundworms, not to be confused or related to earthworms) are among those very tough small invertebrates that deal with those conditions everywhere. After insects they are the most dominant multi-cellular (metazoan) species on the planet having a general size of 0,5 to 1 mm and are among the oldest metazoans on the planet, Nature says in a statement on the article.

They inhabit nearly every imaginable habitat form the deep seas to the acid in pitcher . Some nematodes simply eat bacteria and these are the ones we study here. Terrestrial nematodes have developed a survival stage that can take them through hard times (absence of food, extreme temperatures, too little oxygen, crowding, and more).

At the head of the research was Prof. Gaetan Borgonie of the Ghent University in Belgium and a world leader in the discipline of nematode research. He was brought into contact with the South African research leader, Prof. Esta van Heerden, who set up a cooperation agreement with the University of Ghent and Prof. Borgonie. Prof. Van Heerden manages the Extreme Biochemistry group at the UFS and the research was funded by several research grants.

The search for worms began in earnest in 2007, but it was soon clear that the sampling strategy was insufficient. A massive sampling campaign in 2008-2009 in several mines led to the discovery of several nematodes and the new nematode species Halicephalobus mephisto. It is named after the legend of Faust where the devil, also known as the lord of the underworld is called Mephistopheles.

Nature says special filters had to be designed and installed on various boreholes. Unfortunately, there is no easy way of finding a magic formula and designs had to be adapted by trial and error; improving existing designs all the time. The work of the UFS Mechanical Workshop, which manufactured, adapted and helped design it, was crucial in this respect. Filters were left on the holes for varying periods, sometimes for a few hours and sometimes for months. Prof. Derek Litthauer from the UFS played a big role in sampling, filter designs and coming up with ideas for names for the new nematode with Prof. Borgonie.

Research showed that the nematodes can live in the deep for up to 12 000 years. Three students – Armand Bester, Mariana Erasmus and Christelle van Rooyen from the UFS – did the work on this.

The importance of multi-cellular animals living in the ultra-deep subsurface is twofold: The nematodes graze on the existing bacterial population and influence their turnover. Secondly, if more complex multi-cellular organisms can survive in the deep subsurface on earth, this may be good news when looking for life on other planets where the surface is considered too inhospitable (e.g. Mars). Complex life forms can be found in ecosystems previously thought to be uninhabitable. Nature says this expands the possibilities into new areas where new organisms may be discovered.

Future research will focus on selective boreholes to look for more metazoans, so that a better idea of the complexity of the ecosystems there can be obtained. It will also look for metazoans in the deep subsurface on other continents to determine similarities and differences.

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