August is National Immunization Awareness Month, and Oregon Public Health officials are taking this opportunity to implore everyone, especially expecting and new parents and siblings as well as health care providers, to make sure they are up-to-date on their pertussis vaccine. Infants cannot receive their first pertussis vaccination until they are 2 months old, but if everyone around a new baby is immunized, they can cocoon that newborn and protect him or her.