Explain why a person who recovers from a disease can attend others with the disease without fear of contracting it.

검증된 단계별 안내

Understand that when a person recovers from a disease, their immune system has been exposed to the pathogen responsible for that disease.

During the infection, the immune system produces specific antibodies and memory cells that recognize and respond quickly to the pathogen if it enters the body again.

These memory cells provide long-lasting immunity by enabling the immune system to mount a faster and stronger response upon re-exposure to the same pathogen.

Because of this immune memory, the recovered person is generally protected from reinfection by the same disease-causing organism.

Therefore, the recovered person can safely attend to others with the disease without fear of contracting it again, as their immune system effectively prevents the pathogen from causing illness.

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이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Immunity Development

When a person recovers from a disease, their immune system has produced specific antibodies and memory cells against the pathogen. This immune memory allows the body to recognize and respond quickly to future exposures, preventing reinfection or reducing disease severity.

Adaptive Immune Response

The adaptive immune response involves the activation of lymphocytes that target specific pathogens. After initial infection, these cells remain in the body, providing long-term protection by rapidly neutralizing the pathogen upon re-exposure.

Herd Immunity and Exposure Risk

Recovered individuals often have reduced susceptibility to the disease, lowering their risk of contracting it again. This concept also contributes to herd immunity, where immune individuals help limit disease spread within a population.