From: Diagnostic tools used in the evaluation of acute febrile illness in South India: a scoping review
Study | Positive threshold | Threshold for convalescent sera |
---|---|---|
Kumar et al., 2012 [50] | ≥ 1:80 | – |
Mathai et al., 2003 [52] | ≥ 1:80 | – |
Razak et al., 2010 [63] | ≥ 1:160 | 4-fold rise starting from 1:40 |
Stephen et al., 2015 [65] | ≥ 1:320 | 4-fold rise starting from 1:40 |
Subbalaxmi et al., 2014 [66] | ≥ 1:80 | – |
Viswanathan et al., 2013 [70] | ≥ 1:20 | – |
Vivekanandan et al., 2010 [71] | ≥ 1:80 | – |
Katoch et al., 2016 [74] | ≥ 1:320 | 4-fold increase in paired sera |
Manickam et al., 2014 [83] | ≥ 1:160 | – |
Prasannan et al., 2017 [75] | ≥ 1:320 | – |