Vaccination is when a vaccine is put into your body to protect against disease. Immunization happens when your body becomes immune because of the vaccination. Vaccines trigger your immune system to ...

Because swine flu burst onto the American scene after the makeup of last year's flu vaccine had been determined, people had to get a second inoculation to protect themselves against the new variant of ...

Nasal vaccines offer an option to those afraid of needles, situations where mass vaccination is required, or for those seeking an at-home option, but there are restrictions on who should receive the ...