Well sneezing into the sleeve of your shirt does help decrease spread of a disease and is reccomended as we are in a pandemic at the moment. washing your hands before eating is getting rid of germs but that doesn't mean that there arent other people that are sick but doesnt not help spread a disease. Staying at home when you're sick is quarantining and that helps you recover and does not spread the disease as easily. So you are left with the answer of eating contaminated food.