Microbiome alterations during and after international travel

Future travellers should be forewarned about the hazards of international travel to their gut health, have an appreciation for safe and unsafe foods and have a plan for therapy should they develop diarrhoea. Additionally, international travel in the past year should be part of the medical history for patients developing an endogenous infection (e.g. urinary tract infection, sepsis of uncertain origin or a post-operative infection) as it may influence therapy.