Pathogens and Vaccines

The immune system is introduced to a dead or altered form of the pathogen.

The white blood cells engulf and digest a pathogen. (correct)

The white blood cells produce complementary antibodies that attach to the antigen.

The antibodies slowly increase, peak at around ten days and then gradually decrease.

To prevent individuals from becoming ill from a specific disease.

To reduce the chance of people coming into contact with specific pathogens. (correct)

To protect the individual who has been vaccinated against the specific disease.

To cause a mass infection among the majority of the population.

A few are not vaccinated against the disease, and they are ill and contagious.

The majority of the population are vaccinated and healthy against a specific disease, a few are not vaccinated but well. (correct)

Most of the population are not vaccinated against the specific disease but are well, some are vaccinated and healthy, and a few are not vaccinated, but ill and contagious.

The majority of the population are not vaccinated against a specific disease, however, a few people are ill and contagious.