OCD can make us worry about anything, including worrying we’ll catch someone else’s traits. This is often based typically on whatever OCD theme is driving it.
OCD will use everything in its power to keep you growing it, including facts. If we search, we can find literally any fact to support OCD’s lies. OCD will often take a fact and exaggerate the risk. OCD will take a fact and scare you into doing more compulsions. OCD will take facts to prove it is right.