Coronavirus: Tracking new outbreaks in the sewers

Covid-19 cases are on the rise in Spain. Around 15,000 new cases of the disease have been reported in the past week.

In the city of Valencia a team of engineers and scientists are going into the sewer network in an attempt to find out where outbreaks are likely to spring up next.

Video produced by Silvio Castellanos, Juan Antonio Dominguez and Bruno Boelpaep