Table 1.
Y. pestis reservoir surveillance in Santa Clara and Los Colonos, Casagrande | |||||||
---|---|---|---|---|---|---|---|
X. cheopis Specific Index ( c ) | |||||||
Location | Num. traps | Captured rodents | Trap Index (a) | General Flea Index (b) | R. rattus | R. norvegicus | Y. pestis results |
Los Colonos | 60 | 17 | 14,17% | 6,59 | 11,8 | 0,5 | Not available |
Santa Clara | 60 | 12 | 10,00% | 0,20 | 0 | 0,11 | POSITIVE |
(Note: No data was available for San José Alto but the human cases where located there)
(a) Defined as the number of traps with rats divided by the total number of traps deployed, multiplied by 100. [50]
(b) Defined as the number of fleas collected divided by the total number of rodents captured. [50]
(c) Defined as the number of fleas of one specific species divided by the total number of rodents of one specific species. If the Specific Index (SI) is > 1 regarding Xenopsilla cheopis, the situation is considered at risk. [50]