| the seroepidemiology of reovirus, coxsackievirus infections among panamanian indian children. | rates of hepatitis b virus infection varied significantly among panamanian indian tribes. chocó and mainland cuna indians had a greater prevalence of antibody to hepatitis b surface antigen than guaymi and island cuna indians. the village water supply appeared to be the major environmental difference that distinguished the tribes from one another. since contaminated water plays a role in the transmission of enterovirus, an attempt was made to assess relative exposure to contaminated water by det ... | 1976 | 176278 |
| human t-lymphotropic virus type ii in panamanian guaymi indians. | currently, human t-lymphotropic virus type ii (htlv-ii) is the most prevalent human retrovirus, detected in persons presenting to donate blood in the united states. only scant information is available with which to counsel htlv-ii-seropositive deferred donors or other persons about the ways in which they may spread htlv-ii to others. | 1994 | 8310488 |
| the epidemiology of hepatitis b antigen and antibody among panamanian cuna indians. | previous studies of hepatitis b antigen (hbsag) and antibody to it (anti-hbs) showed widely differing exposures between panamanian indian tribes. cuna indians living on islands appeared infrequently exposed to hbsag; we found no one antigenemic and low age specific anti-hbs rates. in contrast, mainland dwelling guaymi and chocó indians had a high prevalence of anti-hbs. we have now measured hbsag by counterelectrophoresis and anti-hbs by radioimmunoassay in two cuna indian groups who live in the ... | 1975 | 1238027 |
| familial clustering of hepatitis b surface antigen among panamanian indians. | several authors have suggested that the host genome determines the occurrence of chronic hbs ag (hepatitis b surface antigen). in attempts to evaluate this possibility, total infection rate and the combined frequencies of hbs ag and antibody to hbs ag and radioimmunoprecipitation to measure antibody to hbs ag, we tested sera from 255 panamanian guaymi indians. they represented 48 families and 32 living units. clusters of chronically antigenemic individuals were found in families. clusters of inf ... | 1975 | 1110308 |