title: Filariasis infection is a probable cause of implantation failure in in vitro fertilization cycles.
abstract: OBJECTIVE
  To describe a parasitic infection that probably affected the implantation of good-quality embryos in an in vitro fertilization (IVF) cycle.
  
  
  METHODS
  Case report.
  
  
  METHODS
  Tertiary care center in a university hospital.
  
  
  METHODS
  A 36-year-old Caucasian female with primary unexplained infertility. The patient underwent two cycles of IVF with good-quality embryos transferred; however, no pregnancy ensued despite adequate luteal support.
  
  
  METHODS
  In vitro fertilization cycles, CBC, blood smear, evaluation for eosinophilia including serological evaluation for parasitic infections.
  
  
  METHODS
  Pregnancy.
  
  
  RESULTS
  Following treatment for filariasis, a repeat IVF cycle using the same stimulation protocol yielded a full-term pregnancy.
  
  
  CONCLUSIONS
  This case is of particular importance because, to our knowledge, it is the first to describe a parasitic infection that probably affected the implantation of good-quality embryos in IVF cycles.
authors: Department of Obstetrics and Gynecology, American University of Beirut Medical Center, Beirut, Lebanon.
authors: Tony
authors: T
authors: Bazi
authors: Ramzi
authors: R
authors: Finan
authors: Dani
authors: D
authors: Zourob
authors: Amira S
authors: AS
authors: Sabbagh
authors: Roy
authors: R
authors: Nasnas
authors: Tony G
authors: TG
authors: Zreik