Respiratory syncytial virus (RSV) is the most common cause of acute lower respiratory tract illness (ALRI) in infants, children, and the elderly, and often leads to fatal bronchiolitis and pneumonia. About 3.4 million children under the age of five are hospitalized each year due to an acute RSV in…

Mucosal IgA are immunoglobulins (antibodies) that play a key role in the defense of mucosal tissues by neutralizing pathogenic microorganisms and toxins and interfering with bacterial or viral colonization of the epithelium. An important component of needle-free vaccines is induction of mucosal Ig…