Table 2 Microscopic blood analysis using night thick blood smears, in the districts of urban Belém, Northern region of Brazil, 1990–2004
From: Lymphatic filariasis in Brazil: epidemiological situation and outlook for elimination
Local | Year | Number of individuals examined | Number of microfilaremics (%) | Reference |
|---|---|---|---|---|
Greater Belém | 1990-1994 | 1,062,945 | 180 (0.017) | [17] |
6 Districts | 1995 | 226,796 | 6 (0.002) | [17] |
5 Districts | 1996 | 93,498 | 15 (0.016) | [17] |
4 Districts | 1997 | 133,198 | 6 (0.004) | [17] |
5 Districts | 1998 | 115,279 | 1 (0.0008) | [17] |
7 Districts | 1999 | 152,255 | 0 (0.0) | [17] |
6 Districts | 2000 | 132,388 | 0 (0.0) | [17] |
15 Districts | 2001 | 99,093 | 1 (0.001)* | [17] |
21 Districts | 2002 | 92,463 | 0 (0.0) | [17] |
12 Districts | 2003 | 71,555 | 0 (0.0) | [17] |
31 historically endemic districts | 2004 | 164,018 | 0 (0.0) | [18] |