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Table 2 Transmission season categories and implied IRS coverage levels

From: Improving the cost-effectiveness of IRS with climate informed health surveillance systems

1 2 3 4
Cases occurring with no intervention Severity of transmission (actual or predicted) Years in this category Implied IRS Coverage Level
0–50,00 Low transmission 1993, 1994 24%
50,001–100,000 Medium transmission 1995 50%
100,001–150,000 High transmission 1997
1998
75%
150,001–200,000 Epidemic 1996 100%