Marello: I would agree with Dr. Deshpande. It is understandable that a serious infection like meningitis in the first twin would worry any of us regarding the risks to the other twin. One might worry if this is a particularly virulent strain of GBS or could the twins both of some immunodeficiency making them more susceptible to infection. However, the most likely scenario is that the first twin, being premature and colonized, was unlucky enough to become infected (most likely through the usual portals). If the other twin is asymptomatic the acceptable approach would be to watch her closely at home. Perhaps a thorough discussion with the family regarding what to watch for would be the most beneficial, and then work up and treat if she shows any signs or symptoms of possible infection. Good luck.
Les Lang
Neonatologist
USA