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Table 2 Seroprevalence of HTLV-1 infection among blood donors from seven provinces of Iran (per 100,000)

From: Seroprevalence and geographical distribution of human T-lymphotropic virus type 1 among volunteer blood donors in endemic areas of Iran

Location Donors, no. Confirmed HTLV-1 +
Donors, no. Prevalence per 100,000 (95% CI)
Alborz 264340 151 57 (50–70)
Ardabil 139613 14 10 (0–21)
Gilan 373227 92 24 (20–30)
North Khorasan 79035 47 59 (40–80)
Razavi Khorasan 628667 1301 207 (200–220)
South Khorasan 72185 24 33 (20–50)
West Azerbaijan 307422 211 68 (60–80)
Total 1864489 1840 98 (97–99)