Volume 4, Number 1—March 1998
Perspective
Risk for Transfusion-Transmitted Infectious Diseases in Central and South America
Table 3
Estimates of transfusion-transmitted infectious diseases, by countrya
Country | No. of donors | Absolute no. of transfusion- transmitted infectious diseasesb | Infection spreading indexc/104 | Ratio of infections: donations | ||||
---|---|---|---|---|---|---|---|---|
HIV | HBV | HCV | T. cruzi | Total | ||||
Bolivia | 37,948 | 2 | 49 | NAe | 832 | 883 | 233 | 1:43 |
Chiled | 217,312 | 0 | 8 | 1681 | 236 | 1925 | 88 | 1:113 |
Colombia | 352,316 | 8 | 32 | 2364 | 875 | 3279 | 93 | 1:107 |
Costa Rica | 50,692 | 0 | 2f | NA | NA | NA | NA | NA |
Ecuador | 98,473 | 9 | 33 | 92 | 20 | 154 | 16 | 1:639 |
El Salvador | 48,048 | 0 | 12 | 82 | 85 | 179 | 37 | 1:268 |
Guatemala | 45,426 | 0 | 49 | 226 | 33 | 308 | 68 | 1:147 |
Honduras | 27,885 | 0 | 9 | 10 | 7f | 26 | 9 | 1:1072 |
Nicaragua | 46,001 | 0 | 65 | 94 | 10 | 169 | 37 | 1:272 |
Paraguay | 32,893 | 0 | 23 | NA | 41 | 64 | 19 | 1:514 |
Perug | 52,909 | 0 | 4f | 147 | 393 | 544 | 103 | 1:97 |
Venezuela | 204,316 | 0 | 22f | 1312 | 57f | 1391 | 68 | 1:147 |
aData from 1993 except for Ecuador and Paraguay, which were for 1994.
bNumber of cases transmitted by blood transfusion = [number of donors x P(I) ]. For calculations of number of infections, the prevalence was corrected taking into account the sensitivity of the screening.
cInfection spreading index = (total number of infections transmitted ¸ number of donors) x 10,000.
dFractionation index = 1.85.
eData not available.
fResidual infectivity considering that sensitivity of diagnostic tests is not 100%.
gFractionation index = 1.5.