What should not be allowed for a client undergoing chemotherapy in terms of visitors?

For a client undergoing chemotherapy, it is crucial to minimize the risk of infections due to their compromised immune system. Chemotherapy often reduces white blood cell counts, leaving patients vulnerable to even minor infections that a healthy person might easily fight off. Therefore, allowing visitors with colds poses a significant risk to these patients. Colds are caused by viruses that can be easily transmitted, and an individual undergoing chemotherapy may not have the immune response to combat such an infection effectively.

Restricting visitors with colds helps protect the patient's health and maintain their ability to continue with treatment effectively. In contrast, visitors who are healthy, including family members and neighbors, may not necessarily pose the same level of risk, especially if proper hygiene practices are followed.