Guidelines for oral fluid-based surveillance of viral pathogens in swine

Table 2 Early detection of PRRSV by PCR as a function of specimen and day post inoculation^a

Specimen	Positivity (%) by day post inoculation
Specimen	1	2	3	4	5	6	7
Serum	36.5	79.1	89.5	93.8	95.2	97.4	99.9
Blood swab	30.3	73.3	79.4	86.7	87.9	99.9	99.9
Oral fluid	3.6	59.0	89.4	97.6	99.9	99.9	99.9

^a Probability calculated using a binomial logistic regression model with estimates obtained using the least square methods. Reprinted from Pepin et al. (2015) Transboundary and Emerging Diseases 62, 295–304 (copyright 2013) with permission from John Wiley and Sons (4816070894659)

ISSN: 2055-5660