Not catching a common virus for a year or 2, or 5, does not make you respond to it like an immunosuppressed person the next time you catch it. Avoiding pathogens doesn’t damage your immune system.
On the other hand, there are many pathogens out there that ARE capable of damaging your immune system. Pathogens are foes, not friends.
Assistant Professor of Dermatology @McGillMed. MD/residency @med_umontreal. Fellowship @HarvardDerm. Focus: complex medical dermatology and medical education.