A client is diagnosed with influenza A and is prescribed oseltamivir. Which of the following statements by the client indicates a need for further education?

“This medication will shorten the duration of my symptoms.”.

“This medication will prevent me from spreading the virus to others.”.

“This medication will work best if I start taking it within 48 hours of symptom onset.”.

“This medication may cause nausea and vomiting as side effects.”.