Northern California is seeing an unusual rise in rotavirus infections this season, marked by severe diarrhea and vomiting. Health experts note that children between 3 months and 3 years old are the most affected by this “late-spring surge.”

An expectant mother is preparing for her baby’s arrival by insisting that anyone visiting in the first three months be fully vaccinated. Following her doctor’s recommendation, she hopes to protect her newborn by limiting exposure to serious illnesses.