title: Vaginorectal Streptococcus porcinus in pregnancy: an emerging pathogen?
abstract: 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.
  
  
  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.
authors.affiliation: Department of Obstetrics and Gynecology, Drexel University College of Medicine, Philadelphia, PA.
authors.forename: Nigel
authors.initials: N
authors.lastname: Pereira
authors.forename: Anna M
authors.initials: AM
authors.lastname: Powell
authors.forename: Paul
authors.initials: P
authors.lastname: Nyirjesy
authors.forename: Lauren A
authors.initials: LA
authors.lastname: Plante
mesh_terms: D000328:Adult; D021821:Communicable Diseases, Emerging / Q000150:complications* / Q000382:microbiology; D005260:Female; D005322:Premature Rupture of Fetal Membranes; D006801:Humans; D011247:Pregnancy; D012007:Rectum / Q000382:microbiology*; D013290:Streptococcal Infections / Q000150:complications* / Q000382:microbiology; D013291:Streptococcus / Q000145:classification / Q000302:isolation & purification*; D014621:Vagina / Q000382:microbiology*; D055815:Young Adult