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Fredrick Okoth

Research Profile

Geographic Areas

Kenya

Disorders

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Chemicals & Drugs

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Genes, env

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Publications

TOP 3
Saida Osman; Fredrick A Okoth; Xiuqiong Bi; Hiroshi Ichimura; Azumi Ishizaki; Rukia Kibaya; Raphael W Lihana; Raphael Lwembe
Diversity of HIV type 1 and drug resistance mutations among injecting drug users in Kenya.
Sheila Kageha; Raphael W Lihana; Matilu Mwau; Jane M Ngaira; Fredrick A Okoth; Vincent Okoth; Elijah M Songok; Samoel Khamadi
HIV type 1 subtype surveillance in central Kenya.
Raphael W Lihana; Raphael Lwembe; Rachel Musoke; Washingtone Ochieng; Fredrick A Okoth; Mary Owens; Tresa Palakudy; Annie Panikulam; Elijah M Songok; Xiuqiong Bi; Azumi Ishizaki; Hiroshi Ichimura
Efficient monitoring of HIV-1 vertically infected children in Kenya on first-line antiretroviral therapy.

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All Publications

2013: Saida Osman; Fredrick A Okoth; Xiuqiong Bi; Hiroshi Ichimura; Azumi Ishizaki; Rukia Kibaya; Raphael W Lihana; Raphael Lwembe
Diversity of HIV type 1 and drug resistance mutations among injecting drug users in Kenya.
AIDS research and human retroviruses 2013;29(1):187-90.
2012: Sheila Kageha; Raphael W Lihana; Matilu Mwau; Jane M Ngaira; Fredrick A Okoth; Vincent Okoth; Elijah M Songok; Samoel Khamadi
HIV type 1 subtype surveillance in central Kenya.
AIDS research and human retroviruses 2012;28(2):228-31.
2011: Raphael W Lihana; Raphael Lwembe; Rachel Musoke; Washingtone Ochieng; Fredrick A Okoth; Mary Owens; Tresa Palakudy; Annie Panikulam; Elijah M Songok; Xiuqiong Bi; Azumi Ishizaki; Hiroshi Ichimura
Efficient monitoring of HIV-1 vertically infected children in Kenya on first-line antiretroviral therapy.
Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology 2011;52(2):123-8.
2010: Raphael W Lihana; Samoel Khamadi; Kizito Lubano; Joseph Mwangi; Joyceline G Kinyua; Vincent O Okoth; Nancy J Lagat; Fredrick A Okoth; Elijah M Songok; Ernest P Makokha
Genetic characterization of HIV type 1 among patients with suspected immune reconstitution inflammatory syndrome after initiation of antiretroviral therapy in Kenya.
AIDS research and human retroviruses 2010;26(7):833-8.
2009: Raphael W Lihana; Samoel Khamadi; Kizito Lubano; Raphael Lwembe; Michael K Kiptoo; Nancy Lagat; Joyceline G Kinyua; Fredrick A Okoth; Elijah M Songok; Ernest P Makokha; Hiroshi Ichimura
HIV type 1 subtype diversity and drug resistance among HIV type 1-infected Kenyan patients initiating antiretroviral therapy.
AIDS research and human retroviruses 2009;25(12):1211-7.
2009: Samoel Khamadi; Raphael W Lihana; Saida Osman; Joseph Mwangi; Joseph Muriuki; Nancy Lagat; Joyceline Kinyua; Matilu Mwau; Sheila Kageha; Vincent Okoth; Washingtone Ochieng; Fredrick A Okoth
Genetic diversity of HIV type 1 along the coastal strip of Kenya.
AIDS research and human retroviruses 2009;25(9):919-23.
2009: Raphael W Lihana; Samoel Khamadi; Raphael M Lwembe; Washingtone Ochieng; Joyceline G Kinyua; Michael K Kiptoo; Joseph K Muriuki; Nancy Lagat; Saida Osman; Joseph M Mwangi; Fredrick A Okoth; Elijah M Songok
The changing trend of HIV type 1 subtypes in Nairobi.
AIDS research and human retroviruses 2009;25(3):337-42.
2009: Raphael Lwembe; Raphael W Lihana; Washingtone Ochieng'; Annie Panikulam; Charles O Mongoina; Tresa Palakudy; Heleen de Koning; Azumi Ishizaki; Seiji Kageyama; Rachel Musoke; Mary Owens; Elijah M Songok; Fredrick A Okoth; Hiroshi Ichimura
Changes in the HIV type 1 envelope gene from non-subtype B HIV type 1-infected children in Kenya.
AIDS research and human retroviruses 2009;25(2):141-7.
2009: Raphael W Lihana; Samoel Khamadi; Raphael Lwembe; Joyceline G Kinyua; Joseph K Muriuki; Nancy J Lagat; Fredrick A Okoth; Ernest P Makokha; Elijah M Songok
HIV-1 subtype and viral tropism determination for evaluating antiretroviral therapy options: an analysis of archived Kenyan blood samples.
BMC infectious diseases 2009;9():215.
2008: Samoel Khamadi; Vincent Okoth; Raphael W Lihana; Judi Nabwera; Jackson Hungu; Fredrick A Okoth; Kizito Lubano; Matilu Mwau
Rapid identification of infants for antiretroviral therapy in a resource poor setting: the Kenya experience.
Journal of tropical pediatrics 2008;54(6):370-4.
2008: Joseph Mwangi; Zipporah Nganga; Elijah Songok; Joyceline Kinyua; Nancy Lagat; Joseph Muriuki; Raphael W Lihana; Samoel Khamadi; Saida Osman; Raphael Lwembe; Michael Kiptoo; Matilu Mwau; Ruth Chirchir; Solomon Mpoke; Jack Nyamongo; Fredrick A Okoth; Rika Yamada; Seiji Kageyama; Hiroshi Ichimura
Molecular genetic diversity of hepatitis B virus in Kenya.
Intervirology 2008;51(6):417-21.
2007: Raphael Lwembe; Washingtone Ochieng; Annie Panikulam; Charles O Mongoina; Tresa Palakudy; Yusuke Koizumi; Seiji Kageyama; Naohiko Yamamoto; Tatsuo Shioda; Rachel Musoke; Mary Owens; Elijah M Songok; Fredrick A Okoth; Hiroshi Ichimura
Anti-retroviral drug resistance-associated mutations among non-subtype B HIV-1-infected Kenyan children with treatment failure.
Journal of medical virology 2007;79(7):865-72.
2006: J W O Nyangao; P Kingori; Fredrick A Okoth
Detection and identification of echovirus 7 from a child with gastro-enteritis.
East African medical journal 2006;83(12):666-9.
2006: Raphael W Lihana; Samoel Khamadi; Michael K Kiptoo; Joyceline G Kinyua; Nancy Lagat; Gabriel N Magoma; Matilu M Mwau; Ernest P Makokha; Vincent Onyango; Saida Osman; Fredrick A Okoth; Elijah M Songok
HIV type 1 subtypes among STI patients in Nairobi: a genotypic study based on partial pol gene sequencing.
AIDS research and human retroviruses 2006;22(11):1172-7.
2006: Fredrick A Okoth; J Mbuthia; Z Gatheru; F Murila; F Kanyingi; F Mugo; F Esamai; Z Alavi; J Otieno; H Kiambati; N Wanjuki
Seroprevalence of hepatitis B markers in pregnant women in Kenya.
East African medical journal 2006;83(9):485-93.
2006: Rosemary C Sang; Clayton Onyango; John Gachoya; Ernest Mabinda; Samson Konongoi; Victor O Ofula; Lee Dunster; Fredrick A Okoth; Rodney Coldren; Robert Tesh; Amelia Travassos da Rossa; Stacy Finkbeiner; David Wang; Mary B Crabtree; Barry Miller
Tickborne arbovirus surveillance in market livestock, Nairobi, Kenya.
Emerging infectious diseases 2006;12(7):1074-80.
2005: Washingtone Ochieng; P Wanzala; C Bii; Isao Oishi; Hiroshi Ichimura; Raphael W Lihana; Solomon Mpoke; D Mwaniki; Fredrick A Okoth
Tuberculosis and oral Candida species surveillance in HIV infected individuals in Northern Kenya, and the implications on tuberculin skin test screening for DOPT-P.
East African medical journal 2005;82(12):609-13.
2005: Samoel Khamadi; Washingtone Ochieng; Raphael W Lihana; Joyceline Kinyua; Joseph Muriuki; Joseph Mwangi; Raphael Lwembe; Michael K Kiptoo; Saida Osman; Nancy Lagat; Roger Pelle; Anne Muigai; Jane Y Carter; Isao Oishi; Hiroshi Ichimura; D L Mwaniki; Fredrick A Okoth; Solomon Mpoke; Elijah M Songok
HIV type 1 subtypes in circulation in northern Kenya.
AIDS research and human retroviruses 2005;21(9):810-4.
2005: Hudson Lodenyo; Fasana Rana; Geoffrey Z Mutuma; John M Kabanga; Julius K Kuria; Fredrick A Okoth
Patterns of upper gastrointestinal diseases based on endoscopy in the period 1998-2001.
African journal of health sciences 2005;12(1-2):49-54.
2004: Clayton O Onyango; Victor O Ofula; Rosemary C Sang; Sanson L Konongoi; Abourahmane Sow; Kenin M De Cock; Peter M Tukei; Fredrick A Okoth; Robert Swanepoel; Felicity J Burt; Norman C Waters; Rodney L Coldren
Yellow fever outbreak, Imatong, southern Sudan.
Emerging infectious diseases 2004;10(6):1063-8.
2004: Elijah M Songok; Raphael Lwembe; Rukia Kibaya; Kana Kobayashi; Nicaise Ndembi; Kayoko Kita; John M Vulule; Isao Oishi; Fredrick A Okoth; Seiji Kageyama; Hiroshi Ichimura
Active generation and selection for HIV intersubtype A/D recombinant forms in a coinfected patient in Kenya.
AIDS research and human retroviruses 2004;20(2):255-8.
2003: Francis M Mbugua; Fredrick A Okoth; Michael Gray; Tatu Kamau; Akpaka Kalu; Rudi Eggers; Peter Borus; Janet Kombich; Agnes Langat; Peter Maritim; Josephine Lesiamon; Graham A Tipples
Molecular epidemiology of measles virus in Kenya.
Journal of medical virology 2003;71(4):599-604.
2003: Ernest P Makokha; M Ogolla; Alloys S S Orago; Davy K Koech; Solomon Mpoke; Fabian Esamai; Elijah M Songok; Nobuyoshi Kobayashi; Fredrick A Okoth; Peter M Tukei
CD4T lymphocyte subsets and disease manifestation in children with and without HIV born to HIV-1 infected mothers.
East African medical journal 2003;80(2):95-100.
2003: Elijah M Songok; Raphael W Lihana; Michael K Kiptoo; Isaiah O Genga; Rukia Kibaya; Frida Odhiambo; Kana Kobayashi; Yumi Ago; Nicaise Ndembi; Fredrick A Okoth; Yoshihide Fujiyama; Jiro Imanishi; Hiroshi Ichimura
Identification of env CRF-10 among HIV variants circulating in rural western Kenya.
AIDS research and human retroviruses 2003;19(2):161-5.
1999: Fredrick A Okoth; P M Kaiguri; E Mathenge; J Tuei; S Muchiri; N Owino; G Kamau; J Kulundu; A Njuguna; Peter M Tukei; M Yano; T Naruse
KEMRI Hep-cell II hepatitis B surface antigen screening kit.
East African medical journal 1999;76(9):530-2.
1998: Fredrick A Okoth; P M Kaiguri; J Tuei; E M Mathenge; N O Ragot; G Kamau; J Kulundu; V Osidiana; A Njuguna; Peter M Tukei
Human plasma derived hepatitis B vaccine: Kenyan experience.
East African medical journal 1998;75(11):647-8.
1996: P M Kaiguri; Fredrick A Okoth; F Lida; N Matsumura; J Tuei; E G Mathenge; A Kasomo; E Ireri; G M Kamati; V O Osidiana; N R Owino; J M Kuiundu; A W Njuguna; Peter M Tukei; M Yano; T Fujino; H Yatsuhashi; M Koga; R Hamada; T Fukui; M Nagatomo
Detection of HBV-DNA and HCV-RNA viral sequences by polymerase chain reaction in selected Kenyan samples and the relationship to HBV seromarkers.
African journal of health sciences 1996;3(2):51-5.
1996: Fredrick A Okoth
Viral hepatitis.
East African medical journal 1996;73(5):308-12.
1994: Fredrick A Okoth; M Kobayashi; N Takayanagi; D C Kapttich; P M Kaiguri; Peter M Tukei
Efficacy of hepatitis B vaccine in a rural community in Muranga, Kenya.
East African medical journal 1994;71(4):250-2.
1993: K C Hyams; Fredrick A Okoth; Peter M Tukei; D S Vallari; J C Morrill; G Long; J Bansal; Niel T Constantine
Inconclusive hepatitis C virus antibody results in African sera.
The Journal of infectious diseases 1993;167(1):254-5.
1991: Fredrick A Okoth; M Kobayashi; D C Kaptich; P M Kaiguri; Peter M Tukei; T Takayanagi; T Yamanaka
Seroepidemiological study for HBV markers and anti-delta in Kenya.
East African medical journal 1991;68(7):515-25.
1991: J C Morrill; B K Johnson; C Hyams; Fredrick A Okoth; Peter M Tukei; M Mugambi; J Woody
Serological evidence of arboviral infections among humans of coastal Kenya.
The Journal of tropical medicine and hygiene 1991;94(3):166-8.
1990: B K Johnson; Fredrick A Okoth; Peter M Tukei; M Mugambi; J N Woody; J C Morrill; K C Hyams
Dengue-2 virus in Kenya.
Lancet 1990;336(8722):1071.
1990: Fredrick A Okoth; T Yamanaka; N Takayanagi; P M Kaiguri; D Kapttich; Peter M Tukei; D Kinuthia
A community based longitudinal study of viral hepatitis B in a rural community.
East African medical journal 1990;67(9):640-9.
1989: K C Hyams; Fredrick A Okoth; Peter M Tukei; M Mugambi; B Johnson; J C Morrill; G C Gray; J N Woody
Epidemiology of hepatitis B in eastern Kenya.
Journal of medical virology 1989;28(2):106-9.
1986: Fredrick A Okoth; T R Bowry; M V Shah; D G Gatei
Aetiology of liver cirrhosis in Kenya.
East African medical journal 1986;63(11):724-30.
1986: C Greenfield; M V Shah; Fredrick A Okoth; D Gatei; T Jowett; P Karayannis; B M Wankya
Serological evidence of hepatitis B virus and hepatitis delta virus infection in 164 patients with histological evidence of liver damage.
East African medical journal 1986;63(9):585-91.
1986: C Greenfield; V O Osidiana; N Owino; J Nyangao; Fredrick A Okoth; Peter M Tukei; B Fritzell
Cheaper immunisation against hepatitis B: a follow-up report.
East African medical journal 1986;63(9):581-4.
1985: C Greenfield; M J Fowler; B M Wankya; M V Shah; Fredrick A Okoth; J Monjardino; Howard Thomas; D Gatei
The molecular relationship between HBV infection and hepatoma in Kenya.
East African medical journal 1985;62(11):791-3.