Final answer:
Coming to school sick with a communicable disease can be dangerous for the sick person and others. It can worsen the symptoms and spread the illness, impacting academic performance.
Step-by-step explanation:
Coming to school sick with a communicable disease can pose dangers to both oneself and others. Firstly, the sick person may be at risk of further complications or worsening symptoms by exerting themselves physically and mentally during the school day. Secondly, they can easily transmit the illness to other students and staff, causing the disease to spread rapidly throughout the school. This can result in more students falling ill, missing school, and affecting their academic performance.
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