What type of disease develops when a significant number of individuals are immune?

What type of disease develops when a significant number of individuals are immune?

• A. Transmissible disease
• B. Contagious disease
• C. Chronic disease
• D. Non-communicable disease

Answer: (B)

The correct answer is associated with the concept of herd immunity. When a significant number of individuals in a population are immune to a disease, typically through vaccination or previous infections, it can halt the spread of infectious agents. This effect is particularly notable for contagious diseases, which are transmitted from one individual to another. With enough individuals in a community being immune, the likelihood of an infected person coming into contact with a susceptible person decreases, thereby protecting those who are not immune. This principle helps illustrate why vaccination campaigns are critical for managing contagious diseases; they not only protect the vaccinated individuals but also contribute to the overall health of the community by reducing transmission. On the other hand, transmissible diseases refer to any disease caused by pathogens that can be spread from one person to another, but not all transmissible diseases will see the same effects from community immunity. Chronic diseases are long-lasting conditions that do not spread from person to person, while non-communicable diseases are also not transmitted between individuals. Therefore, the concept of immunity and community health behavior primarily applies to contagious diseases.

The correct answer is associated with the concept of herd immunity. When a significant number of individuals in a population are immune to a disease, typically through vaccination or previous infections, it can halt the spread of infectious agents. This effect is particularly notable for contagious diseases, which are transmitted from one individual to another.

With enough individuals in a community being immune, the likelihood of an infected person coming into contact with a susceptible person decreases, thereby protecting those who are not immune. This principle helps illustrate why vaccination campaigns are critical for managing contagious diseases; they not only protect the vaccinated individuals but also contribute to the overall health of the community by reducing transmission.

On the other hand, transmissible diseases refer to any disease caused by pathogens that can be spread from one person to another, but not all transmissible diseases will see the same effects from community immunity. Chronic diseases are long-lasting conditions that do not spread from person to person, while non-communicable diseases are also not transmitted between individuals. Therefore, the concept of immunity and community health behavior primarily applies to contagious diseases.