| presence of human t lymphotropic virus type i in two patients with progressive myelopathy in puerto rico. | two patients from puerto rico with progressive paraparesis had serum positive for human t lymphotropic virus type i (htlv-i) antibodies by elisa and western blot, and one patient had htlv-i antibodies in csf by the elisa method. although the caribbean basin is considered to be an endemic area for tropical spastic paraparesis, this is the first report of the isolation of htlv-i antibodies in the serum and csf of patients with chronic myelopathies in puerto rico. | 1991 | 1891106 |
| evaluation of serologic markers for transfusion transmitted infectious diseases for allogeneic blood donors in puerto rico. | the purpose of this project is to assess the prevalence of serologic markers for transfusion transmitted infectious disease in allogeneic blood donors of the american red cross blood services (arcbs) in puerto rico. four hundred records were randomly selected from a population of 7718 first time volunteer donors from the arcbs in p.r. covering the period from jan. 1st to jun. 30th, 1991. variables obtained were: age, sex, presence of hepatitis b surface antigen (hbsag), hepatitis b anti-core ant ... | 1997 | 9431563 |
| seroprevalence of human t lymphotropic virus type i in puerto rico. | serum specimens from puerto rican residents were tested for antibodies to human t lymphotropic virus type i (htlv-i) using an enzyme immunoassay, western immunoblot, and radioimmunoprecipitation assays. of 1,279 specimens obtained during a dengue virus surveillance program in 1986 and 1987, 3 (0.2%) tested positive; an additional 11 were indeterminate. of 602 specimens obtained from blood donors in ponce in 1987, 1 (0.2%) was positive; an additional specimen was indeterminate. of 21 persons hosp ... | 1989 | 2742042 |