Babies can also get the herpes virus during a vaginal birth if their mother has genital herpes.
You can't transmit the virus to your baby by breastfeeding, though, even if you have an active cold sore.
In others, it periodically flares up and triggers cold sores. Stress, fever, and sun exposure – but not contact with a cold sore – seem to trigger outbreaks.
During these secondary flare-ups, your child probably won't have swelling of her gums or lymph nodes or a fever or sore throat, but she will have the telltale blistering on or near her lips. Clinical manifestations and diagnosis of herpes simplex virus type 1 infection.
Meaning "having the latest facts" is recorded from 1889; that of "having current styles and tastes" is from 1891.