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22 February 2024 | Story André Damons | Photo SUPPLIED
Prof Robert Bragg
Prof Robert Bragg is a researcher in the Department of Microbiology and Biochemistry at the University of the Free State (UFS) and believes hospital-acquired infections (HAIs) might already be “Disease X”.

During the World Governments Summit, the World Health Organisation (WHO) warned world leaders about the likelihood of a Disease X outbreak, saying it is “a matter of when, not if” a new pathogen and pandemic will strike. If there is an outbreak of this disease tomorrow, the world still would not be ready. 

During his speech earlier this month at the summit in Dubai, Tedros Adhanom Ghebreyesus, Director-General of the WHO, said COVID-19 was a Disease X – a new pathogen causing a new disease. He said: “There will be another Disease X, or a Disease Y or a Disease Z. And as things stand, the world remains unprepared for the next Disease X, and the next pandemic. If it struck tomorrow, we would face many of the same problems we faced with COVID-19.”

Though Disease X is a hypothetical placeholder representing yet-to-be-encountered pathogens, Prof Robert Bragg, researcher in the Department of Microbiology and Biochemistry at the University of the Free State (UFS), believes hospital-acquired infections (HAI) might already be “Disease X”. He says data shows that deaths from HAIs will become the leading cause of human deaths. This problem is rapidly growing as most of the pathogens which people contract while in hospital are now resistant to antibiotics, making them very difficult to treat.  

Prof Bragg, whose main research is in disease-control, first in the agricultural industry, and now human health, also previously warned about a disease that would make COVID-19, which killed more than seven million people to date globally, look like a dress rehearsal. His PhD student, Samantha Mc Carlie, investigating how bacteria become resistant to disinfectant and sanitiser products. This is a serious problem for the future, as disinfection could be our last line of defence.

Heading for a crisis in health care

“The world is rapidly heading for a crisis in health care regarding hospital-acquired infections. It is common knowledge that we are quickly running out of antibiotics (and antifungals) to treat bacterial and yeast infections. Without antibiotics and antifungals, the outcome of many of these bacterial and yeast hospital-acquired infections will be very severe. They will, unfortunately, in many cases, result in the death of the patient,” says Prof Bragg. 

According to him, the WHO suggests that 30% of patients in ICUs in developed countries and 70% in underdeveloped countries will contract a HAI. Of these, the mortality rate can be as high as 70%. 

“Most of these infections are caused by multiple drug resistance strains of bacteria such as Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa and Enterobacter species. Additional bacteria and yeast, which can also cause HAIs, such as Serratia species, are also becoming a concern due to their intrinsic higher levels of disinfectant resistance.”

Prof Bragg explains that in 2014, a high-profile review was first published, commissioned by the UK Prime Minister, entitled, “Antimicrobial Resistance: Tackling a crisis for the Health and Wealth of Nations” (the AMR Review). This review estimated that antimicrobial resistance (AMR) could cause 10 million deaths annually by 2050 (The Review on Antimicrobial Resistance 2016). This is the same number of deaths caused by cancer today, making AMR the leading cause of human mortality by 2050. When it was finalised, this report was highly criticised as an over-dramatisation, as when this prediction was made, the number of mortalities related to HAIs was around 700 000 – a very long way off 10 000 000. However, according to recent estimates, five years later, in 2019, 1.27 million deaths were directly attributed to drug-resistant infections globally, and this had reached 4.95 million deaths associated with bacterial AMR (including those directly attributable to AMR) by 2022 (Murray et al. 2022). 

The overuse of disinfectants during the COVID-19 pandemic, according to Prof Bragg and Mc Calie, has contributed to the crisis by fostering resistant strains and contaminating environments. Based on the current trajectory of mortalities, the 10 million mark will be reached way before 2050.

Need for a paradigm shift

The researchers say an urgent need to change the paradigm in medicine from “treatment” to “prevention” is necessary and that the old saying ‘prevention is better than cure’ has never been truer. 

According to Bragg: “The golden era of antibiotics is rapidly coming to an end. It is highly unlikely that we will discover new antibiotics, and even if we do, the likelihood that the bacteria will already have or will be able to develop resistance in a very short time is highly likely. 

“We need to think of what happed with quinolones, where we thought we had won the war with a groundbreaking new antimicrobial agent. The bacteria did not have millions of years of evolution to develop resistance to quinolone, yet in only three years, the first resistant bacteria were isolated. There is currently great excitement around AI-derived new antibiotics. However, the end result is likely to be the same. We need an alternative to treatment – in other words, a paradigm shift.” 

Improved biosecurity 

Prof Bragg says highly improved biosecurity is the only viable option for disease control in a post-antibiotic era. By using good biosecurity in poultry production, he says the mortality rates were reduced by 50%. 

Research has shown a direct link between the environmental microbial load in a hospital and HAIs; with a lower microbial load linked to lower incidence of HAIs including C. difficile infections (Boyce et al. 2008; Suleyman et al. 2018; Umemura et al., 2022). Therefore, the new paradigm is to reduce microbial contamination in the hospital environment to prevent HAIs. If there are fewer dangerous microorganisms in an environment, patient and staff exposure to these microorganisms will decrease, reducing the level of HAIs for staff and patients. However, to reduce the microbial loads in healthcare settings, effective cleaning and disinfection products need to be used. 

News Archive

The UFS produces some of the finest teachers in the country
2015-03-02

 

The quest for producing well-grounded, excellent and prolific teachers at the UFS is bearing fruit. Numerous accolades have over the years been bestowed on some of the UFS Qwaqwa Campus's finest graduates.

"For us as the faculty, it is gratifying and rewarding to learn about the achievements of our students. These achievements do not only validate our efforts, but inspire us as well,” says Dr Dipane Hlalele, Assistant Dean in the Faculty of Education at the UFS.

Dr Hlalele also revealed that, in the recent past, the faculty at the Qwaqwa Campus has experienced an increase in the enrolment figures for teacher training.

"Numbers in our initial teacher education programmes grow in leaps and bounds and we produce some of the best teachers in the country. We are proud to say that on graduation day, our students receive at least two things, i.e., their qualifications as well as entry into the teaching profession," added Hlalele.

Some of the shining examples that Dr Hlalele referred to, are Tebello Tshabalala (English), Mthobisi Khumalo (Mathematics), Thabo Mohapi (Physical Sciences), Lehlohonolo Khanye (Accounting) and Yvonne Tsotetsi (Business Studies). All of these are educators at Lekgulo Senior Secondary School in Qwaqwa and have each produced a 100% pass rate in the 2014 examinations.

There is also Nape Motloung, whose excellent Mathematics results at Botshabelo's Lefikeng High School have placed him as the Top Mathematics Educator in the Free State. Motloung's consistent excellent results have also placed his school in the Top 10 of the Best Performing Schools in Mathematics. This has also won his school R100 000 from the Free State Department of Education.

At yet another Qwaqwa school, Sekgutlong Secondary, Malefetsane Mokomotoane's Mathematics results over the years have earned him a runner-up prize in the category Excellence in Teaching Mathematics at the 2014 National Teachers Awards hosted by Minister Angie Motshekga.

"I am proud to have had 98% of my learners pass Mathematics, with 10 distinctions," said an elated Mokomotoane, who has just been appointed Principal of Selelekela Secondary School in Qwaqwa.

"Having achieved an average of 59%, my highest ever, has taught me and my learners that through hard work, anything is possible," added Mokomotoane.

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