For your protection, Yellow Fever vaccination is recommended for all travellers 9 months of age and older travelling at altitudes below 2300m / 7546ft in all regions of the Amazon Basin (east of the Andes mountains) and the following regions west of the Andes: Ancash, Apurimac, Ayacucho, Cajamarca, Huancavelica, La Libertad, and Piura.
Note: Vaccination is not recommended if only travelling to the provinces of Lambayeque, Tumbes, western Piura, and the southern half of Cajamarca. Take meticulous anti-mosquito bite measures during the daytime in these areas. All other areas of Peru, including Machu Picchu, the Inca Trail, Lima, and Cusco are risk free.
Updated: December 2018
Countries may change their vaccination requirements without notice and in some instances border agents use their discretion to deny entry despite the officially stated requirements.
If there is risk of Yellow Fever at your destination, whether vaccination is required for entry or not, be prepared to show a certificate of vaccination or a waiver stating the medical reasons for not being vaccinated.
If your medical practitioner has advised you against the Yellow Fever vaccine, take meticulous anti-mosquito bite measures during the daytime in Yellow Fever risk areas. More details on insect bite prevention.