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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

Researchers receive study grant for research into Congo Fever
2015-03-10

UFS researchers will be contributing significantly to the search for a vaccine against the deadly tick-borne disease known as Congo Fever.

Prof Felicity Burt from the Department of Medical Microbiology and Virology was recently awarded a research grant by the National Health Laboratory Service (NHLS) to study candidate vaccines for Crimean-Congo heamorrhagic fever (CCHF) virus and other arboviruses.

Arboviruses are viruses transmitted by mosquitoes, ticks, or other arthropods.

Prof Burt is an internationally-recognised expert on the Crimean-Congo haemorrhagic fever (CCHF). The Crimean-Congo haemorrhagic fever (CCHF) virus is a tick-borne virus that is associated with severe haemorrhagic disease in South Africa and other parts of Africa, Asia, and eastern Europe. Her interests focus on medically significant viruses that are transmitted by ticks and mosquitoes. Her research group is involved in determining the immune responses that are induced by different viral proteins.

Crimean-Congo haemorrhagic fever (CCHF) virus, a tick- borne virus found in Africa, Asia, the Balkans, and eastern Europe, causes severe viral haemorrhagic fever outbreaks.

Although a number of tick species are capable of becoming infected with CCHF virus, ticks of the genus Hyalomma, commonly referred to in SA as the “bont-legged ticks”, are the principal vector. The ticks have distinctive brown and white bands on their legs.

In February 1981, the first case of CCHF was recognised in South Africa (SA). To date, there have been nearly 200 cases of CCHF infection in SA with a 20% fatality rate. The majority of cases occurring in SA were in patients from the Northern Cape and Free State provinces.

“The funding that has been awarded will be used to profile immune responses against CCHF viral proteins, and investigate mechanisms and strategies to enhance these immune responses. We hope that the study will contribute knowledge towards the development of a vaccine against this medically significant virus.”

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

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