From Risk to Resilience: A Systematic Approach to Infectious Disease Prevention and Health Care Advice for Travelers

Abstract

Global tourism has rebounded robustly following the COVID-19 pandemic, with over 1.1 billion international arrivals recorded in the first three quarters of 2025. This resurgence highlights the critical importance of travel medicine in preventing significant morbidity among travelers, with studies indicating that 15% to 70% of international travelers experience illness during their journeys. The primary aim of this review is to synthesize evidence-based strategies for mitigating health risks associated with international travel. We outline the principal infectious hazards, focusing on vector-borne diseases (malaria, arboviruses), fecal-oral infections (traveler’s diarrhea, typhoid, hepatitis A and E), and other significant risks such as zoonotic and sexually transmitted infections. The cornerstone of effective prevention is a structured pre-travel health consultation, which enables personalized risk stratification based on destination, itinerary, and traveler-specific factors. This consultation guides the implementation of the foundational preventive triptych: appropriate vaccination (including required, recommended, and routine immunizations), targeted chemoprophylaxis (notably for malaria), and comprehensive education on behavioral precautions (food/water safety, insect bite avoidance). Despite the availability of these measures, compliance remains suboptimal. The application of behavioral models such as Capability, Opportunity, and Motivation–Behavior (COM-B) is essential to understand and bridge the gap between traveler awareness and preventive action. Ultimately, the success of travel health hinges on a collaborative partnership between the traveler and healthcare provider, emphasizing the necessity of adherence to a personalized, evidence-based plan to ensure safe and healthy global mobility.