See On the Amazon rainforest Vaccination from yellow fever and getting anti-malaria medication might be required For anyone who is travelling on the Midwestern point out of Mato Grosso or even the northern (Amazon) locations. For anyone who is arriving from Peru, Colombia or Bolivia, proof of yellow fever vaccination https://bravelight.net/userinfo.php?name=Your_Account&op=userinfo&from=space&username=mozelle_klimas-451692&action=view