I was thinking more about international travelers who deem the world to be their inexpensive playground only to come home sick with things that "should" be easily fixable but often no longer are:

Increasingly we are also seeing antibiotic-resistant bacteria from overseas reaching Australia through returning travellers.

https://www.news-medical.net/health/Global-travel-and-antibi...

Antibiotic resistance is also intricately linked to travel health and has many implications for travellers. Overuse of antibiotic medications for ailments such as traveller’s diarrhea has contributed to the spread of antibiotic resistance. In Southeast Asia, for example, ciprofloxacin and other fluoroquinolone antibiotics are no longer effective in treating traveller’s diarrhea since they are resistant to Campylobacter, Escherichia coli, Salmonella, and Shigella bacteria.

In Pakistan, extensively drug-resistant Typhoid Fever is growing since antibiotics such as ampicillin and ciprofloxacin no longer work. Cases have been reported in returning travellers from North America, the UK, Denmark and Australia. Travellers can be at the forefront of antimicrobial resistance – we are sentinels that can provide clues or alert researchers to developments on the ground.

https://www.iamat.org/blog/fighting-back-against-antibiotic-...