Which infection is most likely to confer life-long immunity after infection?

Which infection is most likely to confer life-long immunity after infection?

• A. Measles
• B. Rubella
• C. Influenza
• D. Chickenpox

Answer: (B)

The infection that is most likely to confer life-long immunity after infection is rubella. After a person has contracted rubella, their immune system typically develops a strong and lasting response against the virus. This is similar to the way the body responds to a vaccination, allowing individuals to have protection against future infections. Measles and chickenpox also provide long-lasting immunity, but rubella is often highlighted specifically for its robust, life-long immunity post-infection. Influenza, on the other hand, tends to change frequently due to antigenic drift and shift, meaning that immunity from a previous infection may not protect against different strains encountered in the future. This understanding of rubella's immunity is critical for public health, especially in populations vulnerable to congenital rubella syndrome.

The infection that is most likely to confer life-long immunity after infection is rubella. After a person has contracted rubella, their immune system typically develops a strong and lasting response against the virus. This is similar to the way the body responds to a vaccination, allowing individuals to have protection against future infections.

Measles and chickenpox also provide long-lasting immunity, but rubella is often highlighted specifically for its robust, life-long immunity post-infection. Influenza, on the other hand, tends to change frequently due to antigenic drift and shift, meaning that immunity from a previous infection may not protect against different strains encountered in the future.

This understanding of rubella's immunity is critical for public health, especially in populations vulnerable to congenital rubella syndrome.