You've likely seen headlines about measles outbreaks across the United States and around the world — even after health experts declared the disease "eliminated" in the U.S. decades ago. | What to Expect
Respiratory syncytial virus (RSV) is such a common virus that nearly all adults and young children are affected by it sooner or later.| What to Expect
If your toddler is sneezing with a runny nose and itchy eyes after a fun day of playing outside, he may already be suffering from seasonal allergies, which can start at almost any age (though they're rare in a baby's first year of life).| What to Expect