Table 5

Number of villages with optimal, moderate, alarm and emergency Breteau index (B.I.)
District no. Sample villages Optimal index Moderate index Alarm index Emergency index
6501 20 0 3 14 3
6502 9 0 2 7 0
6503 8 1 0 6 1
6504 12 3 3 3 3
6505 7 0 4 3 0
6506 13 1 1 10 1
6507 6 0 1 4 1
6508 11 0 0 11 0
6509 6 0 2 4 0

According to the risk levels set by National Institute of Health (NIH), Thailand optimal control is a B.I. < 5% and emergency levels of infestation are indicated by a B.I. of 50% or greater. Further as per Ministry of Public Health Thailand (MOPH), Phitsanulok two more groups were categorized, i.e. B.I. between 5% and 10% as moderate index and B.I. between 20 to 50% as alarm index.

Sarfraz et al.

Sarfraz et al. BMC Public Health 2012 12:853   doi:10.1186/1471-2458-12-853

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