Florida

Science, Tech & Environment

After a long journey from Africa, a new tropical disease sets up shop in Florida

A nasty tropical disease that causes extreme joint pain and can leave sufferers unable to sit up for weeks has shown up in the US for the first time. Florida health officials say at least two cases of chikungunya appear to have been transmitted by local mosquitoes, and a reporter who's been covering the story says officials fear a wider outbreak.

Conflict & Justice

Strands of Evidence: Hair Forensics

What you eat ends up in your hair. Scientists in the US and Europe have used this basic idea to devise a sort of hair-based GPS tracking system. Law enforcement agencies are now using this technique to solve crimes. NOVA's Ari Daniel Shapiro reports.

Science, Tech & Environment

After a long journey from Africa, a new tropical disease sets up shop in Florida

A nasty tropical disease that causes extreme joint pain and can leave sufferers unable to sit up for weeks has shown up in the US for the first time. Florida health officials say at least two cases of chikungunya appear to have been transmitted by local mosquitoes, and a reporter who's been covering the story says officials fear a wider outbreak.