Most of us know the basics of contagious illness. If someone is sick, they can sicken other people around them. Most specifically, they’re expelling and spreading germs — most powerfully by sneezing or coughing, but also by handling objects with contaminated hands — that someone else then inhales or ingests.
In flu season or cases like the 2020 coronavirus outbreak, it can make sense to disinfect your car so people can’t pass around germs as easily. Disinfecting your car won’t protect you against a sick passenger who coughs or sneezes on a healthy one, but it keeps people from picking up germs left on a high-contact surface. Here’s how, when, and why to disinfect your car.