Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Different routes of vaccination produce different types of immunity at different sites. Oral vaccines along the digestive tract to the GALT, which produce mucosal and systemic immunity. Aerosol vaccines reach BALT by inhalation into the bronchi, which produce mucosal and systemic immunity. Nasal vaccines produce mucosal and systemic immunity at NALT.
