Host Genetic Susceptibility to Avian Influenza A/H5N1

NCT01074736 | Completed DMC

• 1 other identifier: SEA 007
• Study Type: observational
• Target: 500
• Locations: 1 country
• Sites: 1

Brief Summary

The identification and characterization of susceptibility loci for H5N1 infection in humans could have profound implications. The detection of host genetic factors may shed light on key pathogenic interactions between H5N1 and human cells, assisting in identifying the viral characteristics determining pandemic potential. In addition, the identification and verification of susceptibility loci would be followed by functional studies which might point the way to new therapeutic and preventive options. The objective of this study is to investigate if host genetic factors are associated with susceptibility to influenza H5N1 illness

Conditions

Influenza A Virus/H5N1 Subtype

Keywords

influenza A/H5N1; host genetic susceptibility; genotyping

Eligibility Criteria

• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

* symptomatic cases with laboratory confirmed H5N1 infection will be eligible for inclusion. * Priority for recruitment will be given to cases from multi-case families in order tomaximize the probability of including cases with a genetic etiology.

You may qualify if:

• The individual had a clinically compatible illness (defined as respiratory symptoms and an abnormal chest x-ray or encephalitis), AND
• Influenza A/H5 RNA identified in a clinical sample by reverse transcription-polymerase chain reaction \[RT-PCR\], OR
• Influenza A/H5 cultured from a clinical sample, OR
• High titres (1:80 or higher) of anti-H5 antibodies by microneutralization in convalescent samples of patients who had a compatible illness but no or negative RT-PCR, AND
• The patient survived or if they died an archived biological specimen is available for potential DNA extraction, AND
• Valid, written consent is obtained.
• The biological parents and biological siblings of all the cases and any other family members linking two cases, AND
• Valid, written consent is obtained.

Sponsors & Collaborators

• South East Asia Infectious Disease Clinical Research Network: lead
• University of Oxford: collaborator
• Wellcome Trust: collaborator

Study Sites (1)

Oxford University Clinical Research Unit

Hanoi, Hanoi, Vietnam

Location

Related Publications (56)

• Albright FS, Orlando P, Pavia AT, Jackson GG, Cannon Albright LA. Evidence for a heritable predisposition to death due to influenza. J Infect Dis. 2008 Jan 1;197(1):18-24. doi: 10.1086/524064.

  PMID: 18171280 BACKGROUND

• Apisarnthanarak A, Erb S, Stephenson I, Katz JM, Chittaganpitch M, Sangkitporn S, Kitphati R, Thawatsupha P, Waicharoen S, Pinitchai U, Apisarnthanarak P, Fraser VJ, Mundy LM. Seroprevalence of anti-H5 antibody among Thai health care workers after exposure to avian influenza (H5N1) in a tertiary care center. Clin Infect Dis. 2005 Jan 15;40(2):e16-8. doi: 10.1086/427034. Epub 2004 Dec 17.

  PMID: 15655735 BACKGROUND

• Bauer M, Orescovic I, Schoell WM, Bianchi DW, Pertl B. Detection of maternal deoxyribonucleic acid in umbilical cord plasma by using fluorescent polymerase chain reaction amplification of short tandem repeat sequences. Am J Obstet Gynecol. 2002 Jan;186(1):117-20. doi: 10.1067/mob.2002.118306.

  PMID: 11810096 BACKGROUND

• Beigel JH, Farrar J, Han AM, Hayden FG, Hyer R, de Jong MD, Lochindarat S, Nguyen TK, Nguyen TH, Tran TH, Nicoll A, Touch S, Yuen KY; Writing Committee of the World Health Organization (WHO) Consultation on Human Influenza A/H5. Avian influenza A (H5N1) infection in humans. N Engl J Med. 2005 Sep 29;353(13):1374-85. doi: 10.1056/NEJMra052211. No abstract available.

  PMID: 16192482 BACKGROUND

• Burgner D, Jamieson SE, Blackwell JM. Genetic susceptibility to infectious diseases: big is beautiful, but will bigger be even better? Lancet Infect Dis. 2006 Oct;6(10):653-63. doi: 10.1016/S1473-3099(06)70601-6.

  PMID: 17008174 BACKGROUND

• Burton PR, Tobin MD, Hopper JL. Key concepts in genetic epidemiology. Lancet. 2005 Sep 10-16;366(9489):941-51. doi: 10.1016/S0140-6736(05)67322-9.

  PMID: 16154023 BACKGROUND

• Buxton Bridges C, Katz JM, Seto WH, Chan PK, Tsang D, Ho W, Mak KH, Lim W, Tam JS, Clarke M, Williams SG, Mounts AW, Bresee JS, Conn LA, Rowe T, Hu-Primmer J, Abernathy RA, Lu X, Cox NJ, Fukuda K. Risk of influenza A (H5N1) infection among health care workers exposed to patients with influenza A (H5N1), Hong Kong. J Infect Dis. 2000 Jan;181(1):344-8. doi: 10.1086/315213.

  PMID: 10608786 BACKGROUND

• Chan VS, Chan KY, Chen Y, Poon LL, Cheung AN, Zheng B, Chan KH, Mak W, Ngan HY, Xu X, Screaton G, Tam PK, Austyn JM, Chan LC, Yip SP, Peiris M, Khoo US, Lin CL. Homozygous L-SIGN (CLEC4M) plays a protective role in SARS coronavirus infection. Nat Genet. 2006 Jan;38(1):38-46. doi: 10.1038/ng1698. Epub 2005 Dec 20.

  PMID: 16369534 BACKGROUND

• Colhoun HM, McKeigue PM, Davey Smith G. Problems of reporting genetic associations with complex outcomes. Lancet. 2003 Mar 8;361(9360):865-72. doi: 10.1016/s0140-6736(03)12715-8.

  PMID: 12642066 BACKGROUND

• Densen P, Weiler JM, Griffiss JM, Hoffmann LG. Familial properdin deficiency and fatal meningococcemia. Correction of the bactericidal defect by vaccination. N Engl J Med. 1987 Apr 9;316(15):922-6. doi: 10.1056/NEJM198704093161506. No abstract available.

  PMID: 3102964 BACKGROUND

• Gagneux P, Cheriyan M, Hurtado-Ziola N, van der Linden EC, Anderson D, McClure H, Varki A, Varki NM. Human-specific regulation of alpha 2-6-linked sialic acids. J Biol Chem. 2003 Nov 28;278(48):48245-50. doi: 10.1074/jbc.M309813200. Epub 2003 Sep 18.

  PMID: 14500706 BACKGROUND

• Gilsdorf A, Boxall N, Gasimov V, Agayev I, Mammadzade F, Ursu P, Gasimov E, Brown C, Mardel S, Jankovic D, Pimentel G, Ayoub IA, Elassal EM, Salvi C, Legros D, Pessoa da Silva C, Hay A, Andraghetti R, Rodier G, Ganter B. Two clusters of human infection with influenza A/H5N1 virus in the Republic of Azerbaijan, February-March 2006. Euro Surveill. 2006;11(5):122-6.

  PMID: 16757853 BACKGROUND

• Glaser L, Conenello G, Paulson J, Palese P. Effective replication of human influenza viruses in mice lacking a major alpha2,6 sialyltransferase. Virus Res. 2007 Jun;126(1-2):9-18. doi: 10.1016/j.virusres.2007.01.011. Epub 2007 Feb 20.

  PMID: 17313986 BACKGROUND

• Hamano E, Hijikata M, Itoyama S, Quy T, Phi NC, Long HT, Ha LD, Ban VV, Matsushita I, Yanai H, Kirikae F, Kirikae T, Kuratsuji T, Sasazuki T, Keicho N. Polymorphisms of interferon-inducible genes OAS-1 and MxA associated with SARS in the Vietnamese population. Biochem Biophys Res Commun. 2005 Apr 22;329(4):1234-9. doi: 10.1016/j.bbrc.2005.02.101.

  PMID: 15766558 BACKGROUND

• Haralambous E, Dolly SO, Hibberd ML, Litt DJ, Udalova IA, O'dwyer C, Langford PR, Simon Kroll J, Levin M. Factor H, a regulator of complement activity, is a major determinant of meningococcal disease susceptibility in UK Caucasian patients. Scand J Infect Dis. 2006;38(9):764-71. doi: 10.1080/00365540600643203.

  PMID: 16938729 BACKGROUND

• He J, Feng D, de Vlas SJ, Wang H, Fontanet A, Zhang P, Plancoulaine S, Tang F, Zhan L, Yang H, Wang T, Richardus JH, Habbema JD, Cao W. Association of SARS susceptibility with single nucleic acid polymorphisms of OAS1 and MxA genes: a case-control study. BMC Infect Dis. 2006 Jul 6;6:106. doi: 10.1186/1471-2334-6-106.

  PMID: 16824203 BACKGROUND

• Hibberd ML, Sumiya M, Summerfield JA, Booy R, Levin M. Association of variants of the gene for mannose-binding lectin with susceptibility to meningococcal disease. Meningococcal Research Group. Lancet. 1999 Mar 27;353(9158):1049-53. doi: 10.1016/s0140-6736(98)08350-0.

  PMID: 10199352 BACKGROUND

• Hill AV. Aspects of genetic susceptibility to human infectious diseases. Annu Rev Genet. 2006;40:469-86. doi: 10.1146/annurev.genet.40.110405.090546.

  PMID: 17094741 BACKGROUND

• Hoebee B, Rietveld E, Bont L, Oosten Mv, Hodemaekers HM, Nagelkerke NJ, Neijens HJ, Kimpen JL, Kimman TG. Association of severe respiratory syncytial virus bronchiolitis with interleukin-4 and interleukin-4 receptor alpha polymorphisms. J Infect Dis. 2003 Jan 1;187(1):2-11. doi: 10.1086/345859. Epub 2002 Dec 13.

  PMID: 12508140 BACKGROUND

• Ip WK, Chan KH, Law HK, Tso GH, Kong EK, Wong WH, To YF, Yung RW, Chow EY, Au KL, Chan EY, Lim W, Jensenius JC, Turner MW, Peiris JS, Lau YL. Mannose-binding lectin in severe acute respiratory syndrome coronavirus infection. J Infect Dis. 2005 May 15;191(10):1697-704. doi: 10.1086/429631. Epub 2005 Apr 11.

  PMID: 15838797 BACKGROUND

• Janssen R, Bont L, Siezen CL, Hodemaekers HM, Ermers MJ, Doornbos G, van 't Slot R, Wijmenga C, Goeman JJ, Kimpen JL, van Houwelingen HC, Kimman TG, Hoebee B. Genetic susceptibility to respiratory syncytial virus bronchiolitis is predominantly associated with innate immune genes. J Infect Dis. 2007 Sep 15;196(6):826-34. doi: 10.1086/520886. Epub 2007 Aug 10.

  PMID: 17703412 BACKGROUND

• Kandun IN, Wibisono H, Sedyaningsih ER, Yusharmen, Hadisoedarsuno W, Purba W, Santoso H, Septiawati C, Tresnaningsih E, Heriyanto B, Yuwono D, Harun S, Soeroso S, Giriputra S, Blair PJ, Jeremijenko A, Kosasih H, Putnam SD, Samaan G, Silitonga M, Chan KH, Poon LL, Lim W, Klimov A, Lindstrom S, Guan Y, Donis R, Katz J, Cox N, Peiris M, Uyeki TM. Three Indonesian clusters of H5N1 virus infection in 2005. N Engl J Med. 2006 Nov 23;355(21):2186-94. doi: 10.1056/NEJMoa060930.

  PMID: 17124016 BACKGROUND

• Kash JC, Tumpey TM, Proll SC, Carter V, Perwitasari O, Thomas MJ, Basler CF, Palese P, Taubenberger JK, Garcia-Sastre A, Swayne DE, Katze MG. Genomic analysis of increased host immune and cell death responses induced by 1918 influenza virus. Nature. 2006 Oct 5;443(7111):578-81. doi: 10.1038/nature05181. Epub 2006 Sep 27.

  PMID: 17006449 BACKGROUND

• Katz JM, Lim W, Bridges CB, Rowe T, Hu-Primmer J, Lu X, Abernathy RA, Clarke M, Conn L, Kwong H, Lee M, Au G, Ho YY, Mak KH, Cox NJ, Fukuda K. Antibody response in individuals infected with avian influenza A (H5N1) viruses and detection of anti-H5 antibody among household and social contacts. J Infect Dis. 1999 Dec;180(6):1763-70. doi: 10.1086/315137.

  PMID: 10558929 BACKGROUND

• Koopmans M, Wilbrink B, Conyn M, Natrop G, van der Nat H, Vennema H, Meijer A, van Steenbergen J, Fouchier R, Osterhaus A, Bosman A. Transmission of H7N7 avian influenza A virus to human beings during a large outbreak in commercial poultry farms in the Netherlands. Lancet. 2004 Feb 21;363(9409):587-93. doi: 10.1016/S0140-6736(04)15589-X.

  PMID: 14987882 BACKGROUND

• Kuiken T, Holmes EC, McCauley J, Rimmelzwaan GF, Williams CS, Grenfell BT. Host species barriers to influenza virus infections. Science. 2006 Apr 21;312(5772):394-7. doi: 10.1126/science.1122818.

  PMID: 16627737 BACKGROUND

• Kumari K, Gulati S, Smith DF, Gulati U, Cummings RD, Air GM. Receptor binding specificity of recent human H3N2 influenza viruses. Virol J. 2007 May 9;4:42. doi: 10.1186/1743-422X-4-42.

  PMID: 17490484 BACKGROUND

• Langhi DM Jr, Bordin JO. Duffy blood group and malaria. Hematology. 2006 Oct;11(5):389-98. doi: 10.1080/10245330500469841.

  PMID: 17607593 BACKGROUND

• Liem NT, Lim W; World Health Organization International Avian Influenza Investigation Team, Vietnam. Lack of H5N1 avian influenza transmission to hospital employees, Hanoi, 2004. Emerg Infect Dis. 2005 Feb;11(2):210-5. doi: 10.3201/eid1102.041075.

  PMID: 15752437 BACKGROUND

• Lo YM, Lau TK, Chan LY, Leung TN, Chang AM. Quantitative analysis of the bidirectional fetomaternal transfer of nucleated cells and plasma DNA. Clin Chem. 2000 Sep;46(9):1301-9.

  PMID: 10973858 BACKGROUND

• Ly S, Van Kerkhove MD, Holl D, Froehlich Y, Vong S. Interaction between humans and poultry, rural Cambodia. Emerg Infect Dis. 2007 Jan;13(1):130-2. doi: 10.3201/eid1301.061014.

  PMID: 17370527 BACKGROUND

• Matrosovich MN, Matrosovich TY, Gray T, Roberts NA, Klenk HD. Human and avian influenza viruses target different cell types in cultures of human airway epithelium. Proc Natl Acad Sci U S A. 2004 Mar 30;101(13):4620-4. doi: 10.1073/pnas.0308001101. Epub 2004 Mar 15.

  PMID: 15070767 BACKGROUND

• Masuzaki H, Miura K, Miura S, Yoshiura K, Mapendano CK, Nakayama D, Yoshimura S, Niikawa N, Ishimaru T. Labor increases maternal DNA contamination in cord blood. Clin Chem. 2004 Sep;50(9):1709-11. doi: 10.1373/clinchem.2004.036517. No abstract available.

  PMID: 15331519 BACKGROUND

• Newport MJ, Huxley CM, Huston S, Hawrylowicz CM, Oostra BA, Williamson R, Levin M. A mutation in the interferon-gamma-receptor gene and susceptibility to mycobacterial infection. N Engl J Med. 1996 Dec 26;335(26):1941-9. doi: 10.1056/NEJM199612263352602.

  PMID: 8960473 BACKGROUND

• Nicholls JM, Chan MC, Chan WY, Wong HK, Cheung CY, Kwong DL, Wong MP, Chui WH, Poon LL, Tsao SW, Guan Y, Peiris JS. Tropism of avian influenza A (H5N1) in the upper and lower respiratory tract. Nat Med. 2007 Feb;13(2):147-9. doi: 10.1038/nm1529. Epub 2007 Jan 7.

  PMID: 17206149 BACKGROUND

• Olsen SJ, Ungchusak K, Sovann L, Uyeki TM, Dowell SF, Cox NJ, Aldis W, Chunsuttiwat S. Family clustering of avian influenza A (H5N1). Emerg Infect Dis. 2005 Nov;11(11):1799-1801. doi: 10.3201/eid1111.050646. No abstract available.

  PMID: 16422010 BACKGROUND

• Oner AF, Bay A, Arslan S, Akdeniz H, Sahin HA, Cesur Y, Epcacan S, Yilmaz N, Deger I, Kizilyildiz B, Karsen H, Ceyhan M. Avian influenza A (H5N1) infection in eastern Turkey in 2006. N Engl J Med. 2006 Nov 23;355(21):2179-85. doi: 10.1056/NEJMoa060601.

  PMID: 17124015 BACKGROUND

• Ortiz JR, Katz MA, Mahmoud MN, Ahmed S, Bawa SI, Farnon EC, Sarki MB, Nasidi A, Ado MS, Yahaya AH, Joannis TM, Akpan RS, Vertefeuille J, Achenbach J, Breiman RF, Katz JM, Uyeki TM, Wali SS. Lack of evidence of avian-to-human transmission of avian influenza A (H5N1) virus among poultry workers, Kano, Nigeria, 2006. J Infect Dis. 2007 Dec 1;196(11):1685-91. doi: 10.1086/522158. Epub 2007 Oct 25.

  PMID: 18008254 BACKGROUND

• Park AW, Glass K. Dynamic patterns of avian and human influenza in east and southeast Asia. Lancet Infect Dis. 2007 Aug;7(8):543-8. doi: 10.1016/S1473-3099(07)70186-X.

  PMID: 17646027 BACKGROUND

• Pitzer VE, Olsen SJ, Bergstrom CT, Dowell SF, Lipsitch M. Little evidence for genetic susceptibility to influenza A (H5N1) from family clustering data. Emerg Infect Dis. 2007 Jul;13(7):1074-6. doi: 10.3201/eid1307.061538.

  PMID: 18214184 BACKGROUND

• Price AL, Patterson NJ, Plenge RM, Weinblatt ME, Shadick NA, Reich D. Principal components analysis corrects for stratification in genome-wide association studies. Nat Genet. 2006 Aug;38(8):904-9. doi: 10.1038/ng1847. Epub 2006 Jul 23.

  PMID: 16862161 BACKGROUND

• Rimmelzwaan GF, van Riel D, Baars M, Bestebroer TM, van Amerongen G, Fouchier RA, Osterhaus AD, Kuiken T. Influenza A virus (H5N1) infection in cats causes systemic disease with potential novel routes of virus spread within and between hosts. Am J Pathol. 2006 Jan;168(1):176-83; quiz 364. doi: 10.2353/ajpath.2006.050466.

  PMID: 16400021 BACKGROUND

• Schultsz C, Dong VC, Chau NV, Le NT, Lim W, Thanh TT, Dolecek C, de Jong MD, Hien TT, Farrar J. Avian influenza H5N1 and healthcare workers. Emerg Infect Dis. 2005 Jul;11(7):1158-9. doi: 10.3201/eid1107.050070. No abstract available.

  PMID: 16032802 BACKGROUND

• Sedyaningsih ER, Isfandari S, Setiawaty V, Rifati L, Harun S, Purba W, Imari S, Giriputra S, Blair PJ, Putnam SD, Uyeki TM, Soendoro T. Epidemiology of cases of H5N1 virus infection in Indonesia, July 2005-June 2006. J Infect Dis. 2007 Aug 15;196(4):522-7. doi: 10.1086/519692. Epub 2007 Jun 29.

  PMID: 17624836 BACKGROUND

• Shinya K, Ebina M, Yamada S, Ono M, Kasai N, Kawaoka Y. Avian flu: influenza virus receptors in the human airway. Nature. 2006 Mar 23;440(7083):435-6. doi: 10.1038/440435a.

  PMID: 16554799 BACKGROUND

• Shioda T, Nakayama EE. Human genetic polymorphisms affecting HIV-1 diseases. Int J Hematol. 2006 Jul;84(1):12-7. doi: 10.1532/IJH97.06100.

  PMID: 16867896 BACKGROUND

• Szretter KJ, Gangappa S, Lu X, Smith C, Shieh WJ, Zaki SR, Sambhara S, Tumpey TM, Katz JM. Role of host cytokine responses in the pathogenesis of avian H5N1 influenza viruses in mice. J Virol. 2007 Mar;81(6):2736-44. doi: 10.1128/JVI.02336-06. Epub 2006 Dec 20.

  PMID: 17182684 BACKGROUND

• Tecle T, White MR, Crouch EC, Hartshorn KL. Inhibition of influenza viral neuraminidase activity by collectins. Arch Virol. 2007;152(9):1731-42. doi: 10.1007/s00705-007-0983-4. Epub 2007 May 22.

  PMID: 17514488 BACKGROUND

• Thanawongnuwech R, Amonsin A, Tantilertcharoen R, Damrongwatanapokin S, Theamboonlers A, Payungporn S, Nanthapornphiphat K, Ratanamungklanon S, Tunak E, Songserm T, Vivatthanavanich V, Lekdumrongsak T, Kesdangsakonwut S, Tunhikorn S, Poovorawan Y. Probable tiger-to-tiger transmission of avian influenza H5N1. Emerg Infect Dis. 2005 May;11(5):699-701. doi: 10.3201/eid1105.050007.

  PMID: 15890122 BACKGROUND

• Thorson A, Petzold M, Nguyen TK, Ekdahl K. Is exposure to sick or dead poultry associated with flulike illness?: a population-based study from a rural area in Vietnam with outbreaks of highly pathogenic avian influenza. Arch Intern Med. 2006 Jan 9;166(1):119-23. doi: 10.1001/archinte.166.1.119.

  PMID: 16401820 BACKGROUND

• Tran TH, Nguyen TL, Nguyen TD, Luong TS, Pham PM, Nguyen vV, Pham TS, Vo CD, Le TQ, Ngo TT, Dao BK, Le PP, Nguyen TT, Hoang TL, Cao VT, Le TG, Nguyen DT, Le HN, Nguyen KT, Le HS, Le VT, Christiane D, Tran TT, Menno de J, Schultsz C, Cheng P, Lim W, Horby P, Farrar J; World Health Organization International Avian Influenza Investigative Team. Avian influenza A (H5N1) in 10 patients in Vietnam. N Engl J Med. 2004 Mar 18;350(12):1179-88. doi: 10.1056/NEJMoa040419. Epub 2004 Feb 25.

  PMID: 14985470 BACKGROUND

• Ungchusak K, Auewarakul P, Dowell SF, Kitphati R, Auwanit W, Puthavathana P, Uiprasertkul M, Boonnak K, Pittayawonganon C, Cox NJ, Zaki SR, Thawatsupha P, Chittaganpitch M, Khontong R, Simmerman JM, Chunsutthiwat S. Probable person-to-person transmission of avian influenza A (H5N1). N Engl J Med. 2005 Jan 27;352(4):333-40. doi: 10.1056/NEJMoa044021. Epub 2005 Jan 24.

  PMID: 15668219 BACKGROUND

• van Riel D, Munster VJ, de Wit E, Rimmelzwaan GF, Fouchier RA, Osterhaus AD, Kuiken T. H5N1 Virus Attachment to Lower Respiratory Tract. Science. 2006 Apr 21;312(5772):399. doi: 10.1126/science.1125548. Epub 2006 Mar 23.

  PMID: 16556800 BACKGROUND

• Vong S, Coghlan B, Mardy S, Holl D, Seng H, Ly S, Miller MJ, Buchy P, Froehlich Y, Dufourcq JB, Uyeki TM, Lim W, Sok T. Low frequency of poultry-to-human H5NI virus transmission, southern Cambodia, 2005. Emerg Infect Dis. 2006 Oct;12(10):1542-7. doi: 10.3201/eid1210.060424.

  PMID: 17176569 BACKGROUND

• Wellcome Trust Case Control Consortium. Genome-wide association study of 14,000 cases of seven common diseases and 3,000 shared controls. Nature. 2007 Jun 7;447(7145):661-78. doi: 10.1038/nature05911.

  PMID: 17554300 BACKGROUND

• Yen HL, Lipatov AS, Ilyushina NA, Govorkova EA, Franks J, Yilmaz N, Douglas A, Hay A, Krauss S, Rehg JE, Hoffmann E, Webster RG. Inefficient transmission of H5N1 influenza viruses in a ferret contact model. J Virol. 2007 Jul;81(13):6890-8. doi: 10.1128/JVI.00170-07. Epub 2007 Apr 25.

  PMID: 17459930 BACKGROUND

Biospecimen

Retention: SAMPLES WITH DNA

* whole blood in tubes containing EDTA * mouth wash. * buffy coat; cell pellet from centrifuged blood, nucleic acid extracted for diagnostic purposes, serum, throat, nose or endotracheal swabs

Study Officials

• Tawee Chotpitayasunond, Professor

  Queen Sirikit National Institute of Child Health, Bangkok, Thailand

  PRINCIPAL INVESTIGATOR

• Herawati Sudoyo, Dr.

  Eijkman Institute for Molecular Biology

  PRINCIPAL INVESTIGATOR

• Tran Hien Nguyen, Professor

  National Institute of Hygiene and Epidemiology, Hanoi, Vietnam

  PRINCIPAL INVESTIGATOR

• Martin Hibberd, Dr.

  Genome Institute of Singapore, Singapore

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: FAMILY BASED
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: NETWORK

Study Record Dates

• First Submitted: February 23, 2010
• First Posted: February 24, 2010
• Study Start: July 1, 2008
• Primary Completion: August 1, 2010
• Study Completion: October 1, 2010
• Last Updated: November 4, 2010

Record last verified: 2010-11

Locations

VN (1)