From: Critical analysis of molluscicide application in schistosomiasis control programs in Brazil
Year | Number of freshwater habitats surveyed | Niclosamide application (%) |
---|---|---|
1976 | 16 488 | 11.4 |
1977 | 43 178 | 3.4 |
1978 | 106 319 | 19.2 |
1979 | 54 817 | 32.4 |
1980 | 126 272 | 26.6 |
1981 | 123 070 | 23.5 |
1982 | 139 255 | 19.6 |
1983 | 178 178 | 21.0 |
1984 | 197 337 | 14.0 |
1985 | 212 113 | 14.4 |
1986 | 156 183 | 11.0 |
1987 | 55 339 | 11.1 |
1988 | 79 287 | 6.8 |
1989 | 100 720 | 7.1 |
1990 | 37 400 | 11.4 |
1991 | 51 012 | 8.5 |
1992 | 50 507 | 14.8 |
1993 | 45 572 | 15.7 |
1994 | 31 772 | 14.8 |
1995 | 34 181 | 13.7 |
1996 | 31 183 | 8.3 |
1997 | 27 832 | 14.4 |
1998 | 44 28 | 34.8 |
1999 | 7 774 | 9.4 |
2000 | 1 519 | 19.8 |
2001 | 3 306 | 0.3 |
2002 | 2 871 | 0 |