From the “Enjoy Peru” website, which one reaches from a link on the home page of the Embassy of Peru – Washington website, information for travelers includes this:
Have a vaccine, at least, 10 days before arriving at the jungle. It is necessary to carry your vaccine certificate with you, as you will be demanded to show it along the excursion to Puerto Maldonado.
In case you arrive to our country without having taken this vaccine, you may be shot at the Jorge Chávez International Airport, the Hospital 2 de Mayo or next to the Hospital del Niño. . . .



I love that. What a good story that would make: “Yeah, I went on a trip to Peru, and they shot me in the airport. After that, we had a ton of fun.”
BWA ha!
saintseester – ROFL!!!!