What concern is most relevant when a child has had eight antibiotic courses in a year?

What concern is most relevant when a child has had eight antibiotic courses in a year?

• A. He may develop chronic diarrhea.
• B. He may develop antibiotic resistant micro-organisms.
• C. He will develop a hearing loss.
• D. His immune system will become dependent on the antibiotics.

Answer: (B)

Repeated exposure to antibiotics creates strong selection pressure that favors bacteria with resistance traits. When a child has eight antibiotic courses in a year, the normal gut and skin flora are repeatedly disturbed, giving resistant strains more opportunities to survive and multiply. Those resistant bacteria can colonize the child and potentially spread to others, making future infections harder to treat because the same antibiotics may no longer be effective. While diarrhea or rare drug-specific side effects can occur with antibiotic use, they don’t carry the same long-term public health impact as the emergence and spread of antibiotic-resistant micro-organisms. The idea that the immune system would become dependent on antibiotics isn’t accurate—antibiotics don’t train immunity, they just kill susceptible bacteria.

Repeated exposure to antibiotics creates strong selection pressure that favors bacteria with resistance traits. When a child has eight antibiotic courses in a year, the normal gut and skin flora are repeatedly disturbed, giving resistant strains more opportunities to survive and multiply. Those resistant bacteria can colonize the child and potentially spread to others, making future infections harder to treat because the same antibiotics may no longer be effective. While diarrhea or rare drug-specific side effects can occur with antibiotic use, they don’t carry the same long-term public health impact as the emergence and spread of antibiotic-resistant micro-organisms. The idea that the immune system would become dependent on antibiotics isn’t accurate—antibiotics don’t train immunity, they just kill susceptible bacteria.