Hand washing is a topic most public health institutions around the globe, as well as more than a hand full of public figures, are currently promoting.
While the majority is taking an educational approach - demonstrating proper technique and explaining their benefits - studies have shown that feeling of disgust might be a motivator. Much more than a byproduct, resulting from our sophisticated and civilised modern urban life, this instinct rather tends to protect us the same way as it has does other animals like chimpanzees.
Even though the current situation led to some out of the box educative collaborations - e.g.: scrubhub.tv - it might turn out, that having revolting posters hung next to public washtubs would be much more efficient yet far less entertaining.
