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Table 1 Summary of number of tested “vectors” and number of positives of all species combined. Data is divided into individual vectors or pooled (multiple) individuals and subdivided by laboratory test category

From: Scrub typhus ecology: a systematic review of Orientia in vectors and hosts

Laboratory method Total no. of individuals tested Total no. of individuals positive (%) Total no. of pools tested Total no. of pools positive (%)
Culture +/− microscopy 1286 35 (2.7) 2919 688 (24)
Combination culture and serology 37,603 244 (0.6)a 1928 389 (20)
Combination culture and molecular 229 22 (9.6)
Combination serological and molecular 8019 90 (1.1) 347 195 (56)
Serological 45,439 2260 (5) 1170 123 (11)
Molecular 30,767 588 (1.9) 1343 411 (31)
Unknown ? 9 80 24 (30)
  1. aOne study reported 75% O. tsutsugamushi infection rate in pools made up of 20,700 L. deliense, but the number of pools tested and number positive were not reported [257]
  2. Key: +/−, with or without; ?, unknown
  3. Note: Percentages shown in parentheses were pooled by giving equal weight to all studies