Varicella, known as chickenpox, is caused by the varicella zoster virus (VZV), with an estimated 84 million cases annually. It primarily affects children, for most of whom it is a self-limiting ...

rubella), genetic abnormalities, multiple gestations, and prematurity. Certain anomalies are more common in male or female infants. If one wants to compare the incidence of congenital anomalies ...

Serious man with Down syndrome congenital disability working on laptop in modern corporate office, sits at desk in workspace, learning received administrative tasks, review data, do online assignments ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...