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03 May 2021 | Story Leonie Bolleurs | Photo Sonia Small
Prof Robert Bragg recently participated in a live panel discussion with leaders from the food and beverage sector, debating the challenges facing the industry and sharing their lessons and solutions.

Prof Robert Bragg from the Department of Microbiology and Biochemistry at the University of the Free State formed part of a live panel discussion with leaders from the food and beverage sector, debating the challenges facing the industry and sharing their lessons and solutions.

The discussion, part of a week-long virtual event (19-23 April), was attended by more than 1 300 attendees representing 500 food manufacturers, retailers, ingredient companies, and laboratories from 83 countries.

The magazine, New Food, coordinated the initiative that focused on food integrity. Speaking with Prof Bragg at the session that centred around animal welfare, zoonotic disease, and antibiotics, were Catherine McLaughlin, Chair, Responsible Use of Medicines in Agriculture (RUMA); Vicky Bond, UK Managing Director, The Humane League; and Daniela Battaglia, Livestock Development Officer, Food and Agriculture Organization of the United Nations (FAO).

The rise of antibiotic resistance

James Russell, President of the British Veterinary Association (BVA), was the moderator of the discussion that also touched on the issues surrounding animal welfare; how animal welfare can impact meat quality; avoiding future zoonotic disease; the rise of antibiotic resistance; ethical considerations to be mindful of; and the use of pesticides and safety considerations.

Prof Bragg specifically talked about antibiotic resistance. “Mankind has major problems with antibiotics,” he said. 

He asked if animal agriculture can be sustained without the use of antibiotics and stated that it was necessary to look at alternatives. Possible solutions he suggested include improved vaccines, bacteriophages, and phage enzymes. He, however, believes that biosecurity will be the most effective alternative. 

Living in a post-antibiotic area

Disinfectants are one of the biosecurity measures taken to minimise the risk of infectious diseases. “But it is important to be aware of the fact that as resistance to antibiotics increases the resistance to disinfectants also increases,” said Prof Bragg. 

He continued: “An increase in the use of disinfectants increases the resistance to disinfectants. This is also evident in humans, especially now during the COVID-19 pandemic. Much of these disinfectants are also of poor quality,” he said. 

According to Prof Bragg, we are living in a post-antibiotic era. “Although food standards are higher in developed countries such as in Europe – where people can pay more for poultry that were fed diets with reduced antibiotics, it is important to keep in mind that people cannot pay the same for poultry in developing countries. These countries often import poultry from countries where the food standards are not that high and where birds were treated to diets containing more antibiotics. A large supplier of poultry in Africa is small-scale farmers, who also feed their birds food containing higher levels of antibiotics.” 

“We need to look at the antibiotic problem as a global problem; a concern that will be with us for a while,” said Prof Bragg.

One solution provided by the group was for mankind to reduce its meat intake and moving to a more plant-based diet. This will have a significant effect on animal welfare as well as reducing the demand for antibiotics.

News Archive

Her mission: Looking for viruses
2017-10-03

Description: Burt readmore Tags: Prof Felicity Burt, Felicity Burt, inaugural lecture, medical virology, UFS Faculty of Health Sciences, arboviruses 

Prof Felicity Burt delivering her inaugural lecture,
Catching a Virus
Photo: Stephen Collett

“Preparing and presenting an inaugural lecture is an opportunity to look back at one’s career and to enjoy previous highlights and achievements; to share these, not only with colleagues, but also with family and friends.”

This is according to Prof Felicity Burt, who recently presented her inaugural lecture, Catching a Virus. Prof Burt is a professor in medical virology in the Faculty of Health Sciences at the University of the Free State (UFS). It may sound ominous, but it is a story about identifying viruses, and finding and stopping them in their tracks in nature.

Research focus on arbo- and zoonotic viruses 
“My research focuses on arboviruses and zoonotic viruses,” said Prof Burt. “Arboviruses are viruses that are transmitted by insect vectors, such as mosquitoes, ticks, midges or sandflies, whereas zoonotic viruses are naturally transmitted from animals to humans. However, there is a considerable overlap between these two groups.” The research looks at host responses, virus discovery and surveillance in order to identify which of the viruses in circulation have the potential to cause human diseases.

“Emerging and re-emerging viruses have significant implications for public health,” said Prof Burt at the start of her lecture. She also stated that there have been disease outbreaks of unprecedented magnitude, which have spread and established in distinct geographic regions. “Many of these emerging viruses are transmitted by vectors or are spread to humans from animals. These viruses can cause significant diseases in humans,” said Prof Burt. 

There are many reasons why these viruses re-emerge, such as global warming, human invasion in forested areas, changes in agricultural practices, international travel, as well as the illegal movement of animals. Prof Burt used the Zika virus as an example of a recent emerging virus. 

More than 20 years’ experience 

With more than 20 years’ experience and a PhD in medical virology from the University of the Witwatersrand, Prof Burt is a renowned specialist. She has worked in the Special Pathogens Unit at the National Institute for Communicable Diseases, and was a member of various teams responding to outbreaks of Ebola and Rift Valley fever in Africa and Saudi Arabia, respectively. She is co-author of more than 51 articles in international scientific journals, as well as six chapters on arboviruses. In 2016, she was awarded a SARChl research chair by the South African Research Chair Initiative for her research on vector-borne and zoonotic diseases.

Click here to read the full lecture.

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