Weak immune response critical to disease that causes most infant hospitalizations

The most common cause of infant hospitalization in the United States, respiratory syncytial virus, infects virtually all children by age two. Along with the influenza virus, RSV is a major contributor to the approximately two million infant deaths worldwide caused every year by respiratory infections, according to the World Health Organization. Worse yet, there’s no safe and effective RSV vaccine available to prevent severe respiratory infections, and no specific antiviral therapy to treat them.