|Sample Requirement||Turnaround Time|
Same working day
The Streptococcus equi (strangles) enzyme-linked immunosorbent assay (ELISA) detected two specific antigens (A and C).
In the original validation study, the assay gave a 93.3% detection rate of true positive horses.
A negative result (≤0.2) for both antigens indicates the animal is unlikely to be a carrier and or have been exposed to S.equi 2 weeks prior to the sample being taken.
A borderline result (0.3 – 0.4) to either antigen indicates the animal may have recently been exposed to S.equi. We recommend a repeat blood sample 10-21 days later to look for a rising titre.
A positive result (≥0.5) to either antigen indicates further testing is recommended – either testing guttural pouch washes (by culture and/or PCR) or examination of three repeat nasopharyngeal swabs.
This serological test was developed by the Animal Health Trust and is performed at Rossdales Laboratories under a licence agreement. We undertake the APHA's VETQAS quality assurance scheme.