- Previous vaccination with any registered, non-registered or investigational pneumococcal vaccine, or planned use of such a vaccine other than the study vaccine during the study period. If a child belongs to a high risk group for pneumococcal infections (such as children with an anatomic or functional asplenia, HIV infection, chronic cardiac or respiratory disease (not asthma), diabetes, cochlear implant, CSF fistula or with significant immunodeficiency) for which a licensed pneumococcal conjugate vaccine is made locally available, the subject can not be enrolled in the study and should be referred to the specific immunization program.