There are five categories of pathogens; viruses, bacteria, fungi, protozoa, and worms. All of these pathogens act differently and can spread disease in different ways. COVID 19 is, obviously, a virus and it is made up of proteins. COVID 19 is particularly problematic because its chemical makeup allows it to live on surfaces for longer than some others and thus be transmitted much more easily.
Whether you live in an area that is still under lockdown restrictions or not, consider where you are going that day, how many people you are going to be in contact with and how many surfaces you and your family might actually have to touch while you are out.