See From the Amazon rainforest Vaccination versus yellow fever and having anti-malaria medication could possibly be needed When you are travelling for the Midwestern point out of Mato Grosso or the northern (Amazon) locations. If you are arriving from Peru, Colombia or Bolivia, evidence of yellow fever vaccination is needed https://extraordinarz.com/userinfo.php?action=view&do=profile&mod=space&userinfo=kai_meares-451692&op=userinfo