Infection in newborn babies (group B streptococcus)
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What are the symptoms of group B strep infection in newborn babies?
Most babies who get early-onset infection become ill within the first few hours of their life.

Early-onset infection
Some signs and symptoms of early infection in newborn babies are:1 2 3

  • Rapid breathing or difficulty breathing (in most babies this is the first symptom that appears)
  • A high temperature (fever)
  • A low temperature (less than 95.5 degrees)
  • Grunting
  • Difficulty feeding or not wanting to feed
  • Being floppy, limp and hard to wake up
  • Low blood pressure
  • Low blood sugar
  • Jaundice in the first 48 hours after life (in jaundice, the skin and the whites of your baby's eyes get a yellow tinge; after 48 hours a little bit of jaundice is common and normal)
  • Mottled looking skin.
Late-onset infections
Late-onset infections happen between seven days and two months after birth. But most babies become ill in the first month.2

Some signs and symptoms of late infection in newborn babies are:

  • A high temperature
  • Being floppy, limp and hard to wake up
  • Difficulty feeding or not wanting to feed
  • Rapid breathing2
  • Being difficult to settle and irritable.
Babies who get a late-onset infection are less likely to have difficulty breathing. But they're much more likely to have an infection of the fluid and lining around the brain (known as meningitis).

It's very important that you get medical help right away if you think that your baby is sick. Group B strep infection is serious, and your baby may become very ill very quickly.3 4



Sources for the information on this page:
  1. Royal College of Obstetricians and Gynaecologists. Preventing group B streptococcus (GBS) infection in newborn babies: information for you. January 2007. Available at http://www.rcog.org.uk/index.asp?PageID=1400 (accessed on 21 April 2008).
  2. Shet A, Ferrieri P. Neonatal and maternal group B streptococcal infections: a comprehensive review. Indian Journal of Medical Research. 2004; 120: 141-150.
  3. Turow J, Spitzer AR. Group B streptococcal infection early onset disease controversies in prevention guidelines, and management strategies for the neonate. Clinical Pediatrics. 2000; 39: 317-326. 10879933
  4. Centers for Disease Control and Prevention. Group B strep disease: frequently asked questions. October 2006. Available at http://www.cdc.gov/groupBstrep (accessed on 17 April 2008).
This information was last updated in Apr 24, 2008