This Health Marketing Stunt Uses Live Bacteria Collected from Kitchens

As part of a health marketing stunt from The Netherlands Nutrition Centre to cut down on the number of people affected by food poisoning each year, a series of five ads were set up like giant petri dishes on the city streets. Using real bacteria collected from kitchens, the wording on the ads began to grow over time and reveal messages that made it clear that what you can't see is making you sick.

The ads relayed messages that encouraged the public to stir food heated in the microwave, use separate cutting boards for meat and keep your fridge at a temperature of about 4°C. Although bacteria normally goes unseen, these ads are a clever way to bring bacteria into the spotlight, especially since food poisoning is something that can easily be remedied with more awareness and diligence in the kitchen.