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09 October 2020 | Story Leonie Bolleurs | Photo Supplied
Disinfectants
Once they have an understanding of the development of disinfectant resistance, the Veterinary Biotechnology group will be able to make recommendations to hospitals and the agricultural industry on how to prevent the development of these resistant microorganisms.

SARS-CoV-2, an enveloped coronavirus, is susceptible to most disinfectants. Therefore, the majority of disinfectants, including those containing 70% ethanol, should be able to kill the virus fairly quickly.

Nevertheless, it was found that some bacteria are highly resistant to several commercially available disinfectants. These bacteria are currently still quite rare, and the work of the Veterinary Biotechnology group at the University of the Free State (UFS) aims to prevent the development of more highly resistant bacteria.

The research group in the Department of Microbial, Biochemical and Food Biotechnology is working on disinfectant resistance. They recently published an article, ‘Molecular basis of bacterial disinfectant resistance’.

Group members include: Prof Robert Bragg, professor in the department; Dr Charlotte Boucher, research associate; Samantha Mc Carlie, master’s student and laboratory manager; master’s students, Twyne Skein and Gunther Staats; honours students, Carlo Visser, Bernadette Belter, Boudine van der Walt, Jacky Huang, and Mart-Louise van Zyl; and an NRF intern, Gloria Kankam.

According to Mc Carlie, the work being done on disinfectant resistance is largely attributable to the major issues currently experienced with antibiotic resistance.

“Antibiotic resistance is becoming one of the biggest life-threatening challenges of our time – even overshadowing the current COVID-19 pandemic – as multidrug-resistant infections are becoming increasingly difficult to treat. Bacterial infections that are present in hospitals and agriculture are becoming unresponsive to many of the antibiotics currently in use, marking the start of a post-antibiotic era.”

It is predicted that by 2050, antimicrobial resistance could lead to as many deaths as cancer causes today and could account for between 10 million and 50 million deaths per year.

Lack of proper biosecurity

Mc Carlie says the resistance to antibiotics is spreading rapidly due to a lack of proper biosecurity measures in the food and agricultural industry as well as in the hospital environment, even if the COVID-19 pandemic has gone a long way towards increasing the awareness of hospital staff to the importance of good biosecurity. Millions of rands are lost every year due to multidrug-resistant infections in the dairy and poultry industries of South Africa, and superbugs are present in almost every major hospital in the country.

“Currently, the best viable protection we have against bacteria is biosecurity and disinfectants. Biosecurity relies heavily on the use of disinfectants to control bacterial growth. This makes it only more troubling that disinfectant resistance is emerging at an alarming rate.”

She believes it is important to understand the mechanisms of resistance in order to combat resistance to disinfectants. “Once the mechanisms are identified, possible solutions can be investigated.”

The research group is currently monitoring disinfectant resistance, looking at which microorganisms are resistant to which disinfectants. They take environmental samples and test the levels of disinfectant resistance to observe the development and spread thereof.

Once they have an understanding of the development of disinfectant resistance, the Veterinary Biotechnology group will be able to make recommendations to hospitals and the agricultural industry on how to prevent the development of these resistant microorganisms.

“As we learn more about these highly resistant isolates, it will direct day-to-day treatment of multidrug-resistant infections and hopefully aid in the fight against antibiotic and disinfectant resistance,” says Mc Carlie.

The dangers of over-prescribing

“Resistance to antimicrobials such as antibiotics and disinfectants is a natural occurrence. We did not invent antibiotics, we discovered them, and so bacterial resistance has been around for as long as antibiotics have – as a survival strategy.”

“However, the widespread use of antimicrobials creates selective pressure for those microorganisms that are resistant to the antimicrobial being used. Over-prescribing and improper use of antibiotics has led to widespread antibiotic resistance. We expect the same trend to be seen with disinfectant resistance in the near future,” says Mc Carlie.

She urges the public to take note that disease-causing microorganisms can become resistant to antibiotics and disinfectants if they are not used correctly. A course of antibiotics should always be taken at the correct time and until the last dose. In the same way, disinfectants should be used at the recommended level and not diluted below that level.

These resistant organisms are causing major issues in the agricultural and medical industries, but this effect has not been seen in households yet. As long as disinfectants are used correctly, most will be able to kill the novel coronavirus.

There is, however, a need to establish tests on the efficacy of the massive number of ‘hand sanitisers’ that are now suddenly available.

According to Prof Bragg, existing disinfectants and hand sanitisers have been specifically tested against SARS-CoV-2 and have been found to be effective. He says the undergraduate students in the department will be evaluating a wide range of different hand sanitisers as part of their practical training.

Mc Carlie adds that the excessive use of poor-quality disinfectants as hand sanitisers can result in bacteria developing resistance to these disinfectants. “It is therefore very important that reliable high-quality disinfectants are used as hand sanitisers during this COVID-19 crisis, otherwise we will be replacing one crisis with a potentially even bigger crisis.”

Mc Carlie believes there is a need to start looking at alternatives to control bacterial growth. “Disinfectants are currently the only viable option, and if these microorganisms become resistant to disinfectants as well, we will have nowhere else to turn,” she says.

News Archive

During 2011: Highlights at the UFS
2011-12-01

2011 was a phenomenal year in the life of the University of the Free State and the memorable moments will be engraved in the history of this proud institution.

World Universities Forum honours the UFS

The UFS was awarded the World Universities Forum (WUF) Award for Best Practice in Higher Education during 2010.The Best Practice Award recognises the most significant practices of the year around the world. The university’s implementation of a number of interlocking innovations to transform the institution is recognised with the award.

These innovations include: campus-wide racial integration for students; reinvigoration of the academic culture; nurturing of the most promising young scholars by means of the Vice-Chancellor's Prestige Young Scholars Programme; sending 71 first-year students to top American universities to assist with their development into non-racial campus leaders; the revision of the undergraduate curriculum to promote a cross-disciplinary approach to key societal problems; raising the entry requirements; the facilitation of open access to campus leadership through sessions with the Vice-Chancellor and Rector; extension of this spirit of dialogue internationally through the inauguration of its International Advisory Council consisting of key thinkers and practitioners; the identification of 20 of the most dysfunctional high schools in the Free State and the building of relationships with those schools.

This university-school partnership is based on a strict contract of reciprocal commitments to increase the chances of black children attending university. The WUF applauded this as the most innovative step.


New branding for our 107-year old institution

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Our university turned a fresh new page with the launch of a new brand that will take the institution on its path to new horizons.

Two primary brands were adopted – an evolved academic crest and a new marketing brand for the institution’s offerings and services. The very foundation of the UFS is built on a dynamic learning environment where academic excellence and the development of leadership qualities. The new brand seeks to adapt to the changing needs of society, without sacrificing its rich history and heritage.

The rebranding process involved one of the most expansive and intensive process of consultations with staff, alumni, Senate, Council and other stakeholders.

The new brand is anchored in the university’s renewed motto “In Veritate Sapientiae Lux” (In Truth is the Light of Wisdom), which has been evolved to embrace the diversity of the community at the university without losing its essence.


Archbishop Desmond Tutu receives an honorary doctorate

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One of the great sons of Africa, Archbishop Emeritus Desmond Tutu, received an honorary doctor of Theology and opened the International Institute for Studies in Race, Reconciliation and Social Justice on the Bloemfontein Campus at the beginning of 2011.

The Institute originated in the Reitz incident of 2008 and embodies the UFS’s determination to be a place where reconciliation, forgiveness and social justice would not only be studied, but where it would also be applied. Students and scholars from across the world can study the theory and practice of building societies across the boundaries of race, as well as religion, gender, disabilities and national origin.

By honouring Dr Tutu, the UFS recognises the contribution he has made in the field of Theology through his teachings and the books he has written. The UFS not only honoured him as a moral and religious leader who has maintained his integrity as a Christian, but also as “a great son of South Africa who has made a huge contribution to peace, reconciliation and justice in South Africa and in the world”.



Reconciliation closes book on the Reitz incident

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The Reitz incident, that has taken the UFS to front pages and news headlines, could come to closure this year with a reconciliation ceremony between the former students and staff members. The parties involved could meet in private and also took part in a public ceremony with many dignitaries witnessing the closure of the incident and repercussions it had.

Messages of apology were read by Prof. Teuns Verschoor, Vice-Rector: Institutional Affairs, on behalf of the UFS, and Mr Danie Grobler, on behalf of the former students. A message of acceptance of the apologies was read by Ms Emmah Koko on behalf of the workers.

Deputy Chairperson of the South Africa Human Rights Commission, Commissioner Pregs Govender, said of this historic event: “The courage and compassion shown by the workers together with the students’ willingness to embrace the spirit of change have enabled a process of justice, transformation and reconciliation that is an inspiring example for South Africa.”


Grade 12s attend first Leadership Summit

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More than 280 learners from all over South Africa and Namibia attended a three-day Leadership Summit on the Bloemfontein Campus in April 2011. The goal of the summit was to enable young leaders to develop their leadership capabilities by looking beyond their normal boundaries.

Prof. Jonathan Jansen, Vice-Chancellor and Rector, addressed the learners on leadership while Mr Louie de Necker, a training consultant, spoke about conflict resolution. Other highlights included a visit to the Boyden Observatory, picnic suppers, an introduction to residence life, a social evening, and a prize-giving ceremony aimed at learners who distinguished themselves as potential leaders during the three-day visit.


UFS honours great teachers

Our university and Sunday Times have joined hands in identifying 150 of the greatest teachers, who moved, inspired and transformed South Africans during their time at school. The project culminated in the book Great Teachers.

These are the teachers who stood out among their colleagues and made a lasting impact on their learners, inspiring them to excel, long after the mathematical equations and English literature tests are forgotten. The book is a powerful account of inspired and inspiring teachers.

All proceeds from the sales of the book will be used to provide bursaries to student teachers of today, who may become the great teachers for tomorrow’s generation.


Graduations now a celebration

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By changing its format, graduations are now a festival to celebrate years of hard work and dedication of students and lecturers at our university. Some of the changes include the gathering of the procession on the Red Square in front of the Main Building, from where it moves to the Callie Human Centre. The graduation programme is also filled with music and song items with various young speakers addressing and inspiring the audience.

A total of 83 doctorates were conferred this year, making it the highest number in the history of the university.


African Student Affairs Conference a huge success

The first African Student Affairs Conference (ASAC) was hosted by our university. The conference was attended by delegates from universities across the continent and was aimed to place the focus on issues relating to student affairs in an African context.

Delegates shared and exchanged strategies, ideas and resources, and discussed issues related to the work of student-affairs professionals. A delegate from Nigeria said it was an important conference for Africa and it should become a regular event.


Research published in Nature

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A research article on the work by a team under the leadership of Prof. Esta van Heerden, and counterparts in Belgium and the USA, has been published in the distinguished academic journal Nature on 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 (nematode) living under extreme conditions in deep, hot mines. It was discovered in one of the gold mines in the Free State.

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.


Postgraduate School is one of a kind

Our Postgraduate School was launched with the aim of bringing research-bases education in line with national priorities and the focus of the UFS Academic Turnaround Strategy of 2010. It spans across our facilities.

The focus of the school is to produce graduates who are global citizens, research literate and able to reflect ethically on the purpose, process and product of research; to improve throughput rates of postgraduate students; and to make the experience of being a postgraduate at our university one which is stimulating, enjoyable and which contributes to the development of people beyond the limits of their disciplines.


Oprah Winfrey now a Kovsie

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World attention was drawn to our university when an honorary doctorate in Education was conferred on media icon Oprah Winfrey on 24 June 2011 at our Bloemfontein Campus. The graduation was probably the biggest ceremony of its kind in South Africa, with more than 4 500 people attending.

Our university honoured her for her accomplishments and unparalleled work as a global media leader, as well as a philanthropist with vision and foresight in the field of education and development.

Prof. Jonathan Jansen, Vice-Chancellor and Rector of our university, said: “It is a great privilege for us to be the first South African university to honour Ms Winfrey in this way and to be able to recognise a global icon of her stature.”


UFS doctors make history in South Africa

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Two procedures took the UFS to the forefront of the medical world this year.

History was made with the first implant of a special new aortic valve in South Africa. The advantage of this new valve is that it can be implanted percutaneously through a catheter from the groin. This eliminates the need for invasive surgery.

The valve is made from porcine pericardium (tissue derived from pigs) and is mounted on an expandable stent, which is threaded along an artery, until it reaches its desired position. The valve is especially useful in older patients who suffer from aortic valve disease and pose a high surgical risk. It also reduces hospitalisation time.

A rare malignant tumour was also removed in groundbreaking heart surgery. What makes this operation unique, is that the suspicious mass, identified in the heart of a 51-year old man, was rapidly growing into a highly invasive cardiac tumour seen in a small number of patients worldwide.

In the highly complex, 10-hour operation the entire right heart chamber had to be removed and the heart reconstructed.


School of Open Learning adds value

The activities of the new school are driven by a central principle: opening up access to those who have not had the opportunity to study at a higher-education institution due to geographical location, socio-economic circumstances or other factors.

Programmes are delivered through a blended-learning model, which blends contact teaching with distance education.

The school will collaborate with our various faculties, and is managing the continuing education-sponsored endeavours of the Faculty of Education. These include projects for in-service training of teachers in Mathematics, Natural and Physical Sciences, Languages, Literacy, Economic and Management Sciences, Technology and various areas of Management and Leadership.



Second group of young leaders abroad

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A second group of first-year students in the Leadership for Change Programme visited universities in the USA, Europe and Asia. Our university could extent the programme to 150 students, up from 71 in 2010.

These students are seen as a leadership core, not only for their university life, but also in public life outside the university borders.

The main purpose behind the programme is to expose students to positive models of racial integration. Their experiences will go a long way towards changing and enriching the minds of young leaders, who have committed to building a truly non-racial society in South Africa.


Odeion School of Music launched

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Our former Department of Music transformed into the Odeion School of Music. The name Odeion name portrays not only an excellent asset in the Free State, but also nationally and internationally.

The school’s new name bears the respected Odeion brand and a number of successful and respected ensembles operate under this brand. These include the residential Odeion String Quartet, student ensembles, the Junior Odeion String Quartet, the Odeion Sinfonia, and the Odeion Choir.

The formation of the school paths the way for more flexibility to complement its profile with new developments. These include the application of prestigious international experts as artistic fellows, membership to progressive European, jointly-developed degree programmes and curriculum development initiatives, the founding of a chair in Orchestra Conducting, a master’s degree in Arts Management, as well as the incorporation of bio-kinetics in the teaching methodologies of performance practice.


World-class Chemistry facilities opened

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World-class Chemistry facilities, with state-of-the art equipment, opened on the Bloemfontein Campus.

The upgrading of the facilities and addition and replacement of equipment were the single biggest investment at our university in a long time.

Specialised research by the Department of Chemistry includes X-ray crystallography, electrochemistry, synthesis of new molecules, the development of new methods to determine rare elements, water purification, as well as the measurement of energy and temperatures responsible for phase changes in molecules, the development of agents to detect cancer and other defects in the body, and many more.
 

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