The 2006 season saw her win her first national title and take a third Barrientos Memorial win. She competed internationally for the first time, taking silver at the Central American and Caribbean Games, but failing to clear a height at the 2006 World Junior Championships in Athletics after her poles did not arrive at the competition. Silva ended the season having improved her regional junior record to 4.20 m. In her first year of senior competition she won gold at the 2007 ALBA Games and a bronze at the 2007 Pan American Games. The latter was her country's first medal in the event at the Games and she broke the Central American and Caribbean record with her clearance of 4.30 m. She improved to 4.50 m in early 2008, but a lack of high level competitions meant she managed on 4.15 m in qualifying on her Olympic debut in Beijing.