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You are at:Home»Uncategorized»Antibiotics under threat as wonder drugs
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Antibiotics under threat as wonder drugs

Grocott's MailBy Grocott's MailNovember 29, 2016No Comments4 Mins Read
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Antibiotics help save lives, but are not the answer when we come down with a case of the "sniffles". The misuse of antibiotics has already resulted in them becoming less effective, which has serious implications for treating bacterial infections in the future. 

Antibiotics help save lives, but are not the answer when we come down with a case of the "sniffles". The misuse of antibiotics has already resulted in them becoming less effective, which has serious implications for treating bacterial infections in the future. 

Speaking during World Antibiotic Awareness Week, from 14 to 20 November, Dr Dena van den Bergh, Director: Quality Leadership at Netcare, said that many people still view antibiotics as a cure for all.

“Antibiotics treat bacterial infections, so they should only be prescribed in the event of a suspected or proven bacterial infection. Antibiotics are not effective against viral infections, and even for bacterial infections they should not be taken unless there is a compelling medical reason why the body’s natural defences may require help. 

“This is because overusing antibiotics, continuously and without real need, breeds more resilient bacterial strains, which then become more resistant to the medication,” she explains. 

According to Van den Bergh, the increasing incidence of antibiotic resistant organisms has highlighted the importance of correct antibiotic prescribing, including “bug-drug matching”, use of narrower spectrum antibiotics, appropriate duration of the course of treatment and correct dosage. 

“At the same time, patients also contribute to antibiotic resistance when they pressure their doctors to prescribe antibiotics to treat non-bacterial infections and by not taking the antibiotics as prescribed.

“At Netcare we believe that information is empowering and that the choices made by ordinary South Africans can play a meaningful role in helping to prevent the problems posed by the overuse and incorrect use of antibiotics,” she asserts. 

Antibiotics are a group of medicines that are capable of destroying or inhibiting the growth of bacteria. An example of a commonly used antibiotic is penicillin, which was discovered in 1928 by Alexander Fleming. 

Antibiotics are used to treat bacterial infections such as pneumonia, ear infections, strep throat, tuberculosis (TB) and urinary tract infections. Antibiotics are not effective against viruses, such as the common cold or influenza. 

Bacteria are constantly evolving, producing different "strains" which have slight differences in their genetic make up. Just as humans can build up resistance to certain types of illness, the evolution of bacteria strains enables them to develop resistance to the antibiotics we rely on to treat bacterial infections. 

This means that the antibiotic loses its ability to effectively control or kill bacterial growth and the bacteria are increasingly able to withstand or resist the curative effect of antibiotic drugs and continue to multiply. In other words, the antibiotic was once able to kill off the bacteria and treat the infection but, due to development of resistance, that antibiotic has now become ineffective in treating the infection. 

Antibiotic resistance is now a global problem, as it has risen to dangerously high levels in many parts of the world. Common infectious illnesses such as pneumonia, tuberculosis and gonorrhoea are becoming more difficult to treat because the antibiotics used to treat them are becoming less effective.

Without antibiotics that work, essential medical procedures like hip operations, caesarean sections, organ transplants and treatments such as chemotherapy would be much more risky.

If we do not take urgent action we will soon head for a post-antibiotic era, in which common infections and minor injuries will once again cause death and disability. This would also lead to higher medical costs and prolonged hospital stays. 

Multi-drug resistant (MDR) bacteria are germs that have developed resistance to at least three different antibiotics. These are particularly dangerous to patients who have other underlying health problems or injuries, or are undergoing surgery, for example. 
Internationally and in South Africa, we urgently need to change our patterns of antibiotic prescription and usage. Without such behavioural change, antibiotic resistance will remain a major threat even if new medicines are developed.

The World Health Organisation has flagged antibiotic resistance as a high priority issue, endorsing a global action plan on antibiotic resistance at the World Health Assembly in May 2015. The global action plan aims to ensure the prevention and treatment of infectious diseases with safe and effective medicines continues.

The global action plan has five strategic objectives:
• To improve awareness and understanding of antimicrobial resistance
• To strengthen surveillance and research
• To reduce the incidence of infection
• To optimise the use of antimicrobial medicines
• To ensure sustainable investment in countering antimicrobial resistance.

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