Final answer:
If someone you're working with shows symptoms of fever, nausea, or diarrhea, advise them to stay home from school or work until they are well. They should also cover their mouth and nose when sneezing or coughing, wash their hands frequently, and avoid sharing personal items and drinking glasses or utensils.
Step-by-step explanation:
If someone you're working with shows symptoms of fever, nausea, or diarrhea, it is important to take precautions to prevent the spread of infection. You should advise the person to stay home from school or work until they are well.
They should also cover their mouth and nose when sneezing or coughing with a tissue and wash their hands frequently to avoid spreading pathogens. Additionally, it is important to avoid sharing personal items and drinking glasses or dining utensils to prevent the transmission of infectious diseases.