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Original ArticleOpen Access
Seroepidemiology of HTLV-I Infection in Northeast Thailand : A Four Year Surveillance
Urwijitaroon Y 
,
Barusrux S ,
Puapairoj C ,
Romphruk A ,
Khampeera P
,
Barusrux S ,
Puapairoj C ,
Romphruk A ,
Khampeera P The human T-lymphotropic virus type I (H1LV-I) can be transmitted through blood transfusion,
sexual contact, perinataly and by breast feeding. We carried out a four years seroepidemiology
surveillance study of H1L V-I infection among northeast Thai population by screening for
antibodies to H1LV-I (anti-H1LV-I) in 1992, 1993, 1995 and 1997. A total of 8,323 blood samples
were collected from 6,228 blood donors, 823 pregnancies, 219 multitransfused patients, 53 HIV
positive intravenous drug users and 1,000 northeast-Thai workers at different periods of time. The
serum samples were tested for anti-HTL V-I by particle agglutination (P A) technique and confirmed
by Western blot. One sample from a multitransfused patient collected in 1992 and one
sample from a blood donor collected in 1995 demonstrated positive anti-H1L V-I screening by
PA but negative by Western blot. This finding indicates that at present H1L V-I is not a public
health problem in the northeast of Thailand but surveillance should be continually conducted.
sexual contact, perinataly and by breast feeding. We carried out a four years seroepidemiology
surveillance study of H1L V-I infection among northeast Thai population by screening for
antibodies to H1LV-I (anti-H1LV-I) in 1992, 1993, 1995 and 1997. A total of 8,323 blood samples
were collected from 6,228 blood donors, 823 pregnancies, 219 multitransfused patients, 53 HIV
positive intravenous drug users and 1,000 northeast-Thai workers at different periods of time. The
serum samples were tested for anti-HTL V-I by particle agglutination (P A) technique and confirmed
by Western blot. One sample from a multitransfused patient collected in 1992 and one
sample from a blood donor collected in 1995 demonstrated positive anti-H1L V-I screening by
PA but negative by Western blot. This finding indicates that at present H1L V-I is not a public
health problem in the northeast of Thailand but surveillance should be continually conducted.
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