International Travel Medicine Center of Iran International Journal of Travel Medicine and Global Health 2322-1100 13 4 2025 12 01 Vaccines, Immune Memory, and Travel: Rethinking Prevention in a Globalized World 237440 10.30491/ijtmgh.2025.237440 EN Journal Article 1970 01 01 https://www.ijtmgh.com/article_237440_c09d683c95f5371618010d0e3791fafd.pdf