| low prevalence of antibodies to hiv-1 and htlv-i in alexandria, egypt. | sera from 1029 subjects from alexandria, egypt were tested for antibodies to htlv-1 and hiv-1 by elisa and confirmatory immunoprecipitation assay. the sera were from 866 blood donors, 71 prisoners, 54 hospital patients, and 38 intravenous drug addicts. 2.8% of the sera were positive for htlv-1 by elisa, 1 of which (0.1%) was confirmed by radioimmuno-precipitation (ripa). 1.6% were positive for hiv-1 by elisa, none of which were confirmed. thus the prevalence of hiv-1 is low in egypt compared ... | 1987 | 12342620 |