Jane Swenson has been suffering from a cold for about a week and has missed 3 days of work. She decides to return to work at the local senior citizen center. She is still coughing at intervals and has a runny nose but has improved since last week. Should she still use some precautions to prevent spreading her illness

yes!

Explanation:

anytime a person is working with others in any capacity, you should do everything you can to prevent spreading illness.

in the medical field, you should be extremely cautious about this, and I would say that jane should also take precautions to prevent the elderly from getting sick.

the elderly typically have weaker immune systems and it is more strenuous for their bodies to recover from a cold than a person in their 20s. so even a minor cold for Jane could lead to serious complications in an older individual

I hope this helped :)