“…Primary VZV infection, or varicella, occurs almost exclusively during childhood [4], and is a self-limited, benign disease. In otherwise healthy children, pneumonia is an infrequent complication (7-16% of the varicella cases) [5], although in immunocompromised children it may increase to 40% [3]. Only 1-5% of all varicella reported cases occur in adults.…”