The Nurse Is Providing Patient Teaching to a Young Mother

The nurse is providing patient teaching to a young mother who has brought her 3-month-old infant to the clinic for a well-baby checkup. What action should the nurse recommend to the woman to prevent the transmission of organisms to her infant during the cold season?

A) Take preventative antibiotics, as ordered.
B) Gargle with warm salt water regularly.
C) Dress herself and her infant warmly.
D) Wash her hands frequently.