Vaginorectal streptococcus porcinus in pregnancy: An emerging pathogen?

Nigel Pereira, Anna M. Powell, Paul Nyirjesy, Lauren A. Plante

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


OBJECTIVE: Streptococcus porcinus has previously been isolated from the genitourinary tract of reproductive-aged women. However, very little is known about the pathogenicity of this microorganism in pregnancy. The study aimed to report pregnancies complicated by vaginorectal S. porcinus and associated adverse outcomes. MATERIALS AND METHODS: We present 2 patients with 3 pregnancies complicated by vaginorectal S. porcinus and preterm cervical change. RESULTS: The first patient lost a twin pregnancy to previable preterm rupture of membranes. During her subsequent pregnancy, again positive for S. porcinus, cervical shortening prompted antibiotic treatment and cerclage. The second patient delivered preterm despite cerclage placed for sonographic indications. CONCLUSIONS: Our cases suggest that S. porcinus may contribute to the pathogenesis of preterm rupture of membranes and cervical insufficiency.

Original languageEnglish (US)
Pages (from-to)e18-e21
JournalJournal of Lower Genital Tract Disease
Issue number4
StatePublished - Oct 1 2013
Externally publishedYes


  • Streptococcus porcinus
  • Streptococcus pseudoporcinus
  • cervical insufficiency
  • pregnancy
  • preterm delivery

ASJC Scopus subject areas

  • Obstetrics and Gynecology


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