title: GENEDIA Multi Influenza Ag Rapid Test for detection and H1, H3, and H5 subtyping of influenza viruses.
abstract: BACKGROUND
  Rapid identification and subtype determination of influenza virus is important in managing infected patients. Rapid influenza diagnostic tests (RIDTs) are widely used in this manner, but most can only detect influenza A and B viruses without subtyping. A new RIDT, GENEDIA Multi Influenza Ag Rapid Test (GENEDIA), was developed for detection of influenza A and B viruses and also subtyping of influenza A to H1, H3, H5 which has not been possible with other RIDTs.
  
  
  OBJECTIVE
  Assess the performance of GENEDIA.
  
  
  METHODS
  Nasopharyngeal swabs were collected from 274 clinically suspected patients (influenza A/H1N1/2009 (n=50), influenza A/H3 (n=50), influenza B (n=73) and influenza-negative (n=101)) and analyzed with the real-time RT-PCR, GENEDIA, SD Bioline Influenza Ag, and Alere BinaxNow Influenza A&B Card. Also, 46 fecal specimens (H5N2 (n=3), H5N3 (n=3)) of spot-billed duck were analyzed with RT-PCR and GENEDIA.
  
  
  RESULTS
  Compared to real-time RT-PCR, the sensitivities of GENEDIA, SD Bioline Influenza Ag, and Alere BinaxNow Influenza A&B Card were 73.0%, 57.0%, 58.0% for influenza A, respectively, and 68.5%, 65.8%, 57.5% for influenza B, respectively. Specifically, the sensitivity of GENEDIA was 70.0% for influenza A/H1N1/2009 and 76.0% for influenza A/H3. From the avian influenza samples, GENEDIA detected all six H5 subtype without any cross-reactions.
  
  
  CONCLUSIONS
  The GENEDIA Multi Influenza Ag Rapid Test was sensitive in detecting influenza viruses compared with other commercial RIDTs and also useful for rapid subtype determination of influenza A.
authors.affiliation: Department of Laboratory Medicine, College of Medicine, Korea University, Seoul, Republic of Korea.
authors.forename: Jin Woo
authors.initials: JW
authors.lastname: Jang
authors.affiliation: Department of Laboratory Medicine, College of Medicine, Korea University, Seoul, Republic of Korea.
authors.forename: Sun-Young
authors.initials: SY
authors.lastname: Ko
authors.affiliation: Department of Laboratory Medicine, College of Medicine, Korea University, Seoul, Republic of Korea.
authors.forename: Mun Sub
authors.initials: MS
authors.lastname: Byoun
authors.affiliation: Department of Veterinary Microbiology, College of Veterinary Medicine, Kangwon National University, Chuncheon, Republic of Korea.
authors.forename: Haan Woo
authors.initials: HW
authors.lastname: Sung
authors.affiliation: Department of Laboratory Medicine, College of Medicine, Korea University, Seoul, Republic of Korea. Electronic address: malarim@korea.ac.kr.
authors.forename: Chae Seung
authors.initials: CS
authors.lastname: Lim
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000956:Antigens, Viral / Q000276:immunology*; D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D005243:Feces / Q000821:virology; D005260:Female; D006801:Humans; D007223:Infant; D009980:Influenza A virus / Q000145:classification* / Q000276:immunology* / Q000302:isolation & purification; D009981:Influenza B virus / Q000145:classification* / Q000276:immunology*; D007251:Influenza, Human / Q000276:immunology / Q000821:virology*; D008297:Male; D008875:Middle Aged; D009305:Nasopharynx / Q000821:virology; D055815:Young Adult
chemical_list: D000956:Antigens, Viral
keywords: H1N1, H3, H5; Influenza; Rapid influenza diagnostic test (RIDT); Subtype