The only disease I found originating in the New World is syphilis.
https://docs.google.com/viewer?a=v&q=cache:iK7hr6kldS0J:www.econ.yale.edu/~nq3/NANCYS_Yale_Website/Research_files/JEP_revision_word_version_final_with_tables.pdf+Columbian+exchange+diseases+to+Europe&hl=en&gl=us&pid=bl&srcid=ADGEESj2CslqaSD5NEZHoVjiVZSkFvYMryfwHoSWVsPf2g7i7Xo5etAFFmDvUI62tSKbAjMB0II-gHnIxEMX1d0hfcFarjLyuLwAgc9l54v_y8w0omKQXNspKJl67EIpQYnNkDmT1xUO&sig=AHIEtbQmES9ua6MLLW0BhkdHtSOdepWOQA
During the Columbian Exchange what diseases were brought from the new world to Europe?
2 answers
http://docs.google.com/viewer?a=v&q=cache:iK7hr6kldS0J:www.econ.yale.edu/~nq3/NANCYS_Yale_Website/Research_files/JEP_revision_word_version_final_with_tables.pdf+Columbian+exchange+diseases+to+Europe&hl=en&gl=us&pid=bl&srcid=ADGEESj2CslqaSD5NEZHoVjiVZSkFvYMryfwHoSWVsPf2g7i7Xo5etAFFmDvUI62tSKbAjMB0II-gHnIxEMX1d0hfcFarjLyuLwAgc9l54v_y8w0omKQXNspKJl67EIpQYnNkDmT1xUO&sig=AHIEtbQmES9ua6MLLW0BhkdHtSOdepWOQA