The MSU VDL now offers Streptococcus equi PCR (Strangles PCR, test code 60090).

Advantages of a PCR assay include:

    • A shorter turnaround time for results
    • Higher sensitivity compared to traditional culture; it can be difficult to isolate Streptococcus equi using traditional culture for samples heavily contaminated with commensal bacteria

Things to note:

    • The PCR assay can detect the presence of vaccine strain even up to 30 days post-vaccination.
    • If antimicrobial susceptibility is needed, a traditional culture should be ordered along with a PCR test.

Details for sample submission and ordering can be found in our test catalog.

For More Information:

Understanding Equine Strangles (AAEP) – Find more information on clinical signs of disease, transmission, diagnosis, treatment, management of an outbreak, vaccination, and additional preventative measures.

Confirmed Strangles Cases in Michigan for 2021 – The Michigan Department of Agriculture and Rural Development reports confirmed cases of strangles in Michigan. The VDL provides this information as a service to our Michigan clients and horse owners.

Equine Disease Communication Center – Use the EDCC disease alerts to get updates on current disease outbreaks nationally or by state.