Even though there has been a lot of progress in the fight against Chagas disease, there are still challenges that Latin America continues to face.  As was noted in Venezuela, it is necessary to continue control efforts even when substantial progress has been made.  Venezuela had reduced its transmission rate considerably and therefore decided to reduce its control activities accordingly.  Unfortunately, vector-borne transmission problems reappeared shortly after (Guhl, 36).  This showed that even though a country may be successful with its efforts, they must continue these efforts if they want to retain their progress.