Which of the following is a common side effect of biotherapy?

Biotherapy, also known as immunotherapy, leverages the body’s immune system to fight cancer and can lead to a range of side effects. A common side effect associated with biotherapy is flu-like symptoms, which may include fever, chills, fatigue, and body aches. These symptoms occur because biotherapy can stimulate the immune system, similarly to how a viral infection might provoke a response. The activation of the immune system is beneficial for attacking cancer cells but can also lead to these systemic reactions that mimic the sensations of having the flu.

Nausea and vomiting, hair loss, and weight gain can occur with various cancer treatments, but they are not typically associated with biotherapy. Nausea and vomiting are more commonly linked to traditional chemotherapy, while hair loss is primarily a side effect of certain chemotherapy agents as they target rapidly dividing cells, including those of hair follicles. Weight gain may happen due to various factors, including hormonal changes or corticosteroid use, but it is not a predominant side effect of biotherapy itself.