During this winter my whole family got a bad cold and so I decided to take a look on our hand hygiene. My five year old daughter asked me every time she went to the bath to join her and to to say her how long she should soap her hands. This brought me to the idea to implement an alexa skill to help keep the correct time for hand washing.
The skill gives instructions to water the hands, rub it with soap (during this time a 30 second cc-0 music file is played) and finally rinse the hands with clean water (as recommended by the WHO)
It's built with php and runing on an own server.
The next steps are to bring a version with visuals and more detailed instructions how to exactly soap the hands.
A version with support of more languages is also already in the certification process.