Childhood is a disease - a sickness that you grow out of.

Diabetes is now the most common chronic disease of childhood outside of asthma.

Literature is a textually transmitted disease, normally contracted in childhood.

My long sickness Of health and living now begins to mend, And nothing brings me all things.

Sick now? droop now? This sickness doth infect The very lifeblood of our enterprise.

Is Brutus sick, and is it physical To walk unbraced and suck up the humors Of the dank morning? What, is Brutus sick, And will he steal out of his wholesome bed To dare the vile contagion of the night, And tempt the rheumy and unpurged air, To add unto his sickness?