Table 2 Recommended Premise Index (PI) and Container Index (PI) values for Kandy based on frequency analysis
Probability of occurrence (%) | PI (%) | CI (%) | Risk category | Recommended action | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
Akurana | Gampola | KMC and GK | Average | Akurana | Gampola | KMC and GK | Average | |||
25 | 12.45 | 15.00 | 11.00 | 12.82 | 14.75 | 18.75 | 12.40 | 15.30 | High risk | Application of chemical larvicides for potential breeding sites |
50 | 7.70 | 12.60 | 8.00 | 9.43 | 9.00 | 15.00 | 9.58 | 11.19 | Moderate risk | Intensive vector surveillance and government involved source reduction of vector breeding sites |
75 | 3.80 | 10.70 | 5.76 | 6.75 | 4.60 | 12.14 | 7.26 | 8.00 | Low risk | Be alert and motivate source reduction of vector breeding sites |