Over 39 million people could die of antibiotic-resistant infections between now and 2050, according to a study published in The Lancet.
The study says older people are most at risk of driving up infection-based fatalities.
Emergency physician Dr John Bonning says this has been a worry in the medical community for quite some time.
"People don't seem to necessarily realise that not only are they not doing themselves a disservice by overusing them - but it's actually the community resistance that's growing as well."
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