Peru's Amazon basin has the highest level of hepatitis A endemicity in Latin America. Diseases such as measles and diphtheria are commonly reported. Influenza risk extends throughout the year. There is no risk in urban areas. Cajamarca, La Libertad, Lambayeque, Piura.
Chloroquine resistance is confirmed in the departments bordering Brazil and Ecuador.
Persons facing exposure in other risk areas should undertake chemoprophylaxis with chloroquine in addition to personal protective measures. And anything else necessary to know. Am anticipating a trip and need information. Especially if you have been there personally. A final decision regarding immunizations will be based on the traveler's medical history, proposed itinerary, duration of stay and purpose for traveling.