Brazil: Fighting dengue fever in Sao Paulo
19 April 2015 Last updated at 01:26 BST
One-hundred-and-thirty people have died in an outbreak of dengue fever in Sao Paulo.
More than 460,000 cases have been reported so far this year.
The disease is spread by mosquitoes and the epidemic is blamed on wet weather, and on storing contaminated water - at a time of water shortages across the country.
Peter Dobbie reports.