For all 108 patients leptospirosis was diagnosed on the basis of a fourfold or greater increase in titer by mat seroconversion and all but 1 of 245 controls were mat negative titers 1 100.
Mat titers leptospirosis.
Laboratory studies can confirm the diagnosis and determine the extent of organ involvement.
Titers of greater than 100 are usually considered significant although these may be due to vaccination.
For all species of animals when chronic leptospirosis is suspected abortion anterior uveitis hepatitis and nephritis etc it is not necessary to collect a convalescent serum sample.
The mat is an excellent test but it.
Horses that abort due to leptospirosis exposure tend to have very high mat titers.
Results are expressed as the reciprocal of the highest dilution where agglutination is observed.
Lepto mat result interpretation the mat is a qualitative and quantitative test having high diagnostic specificity and relatively low sensitivity.
Human leptospirosis is an acute febrile illness that presents with many manifestations and is found worldwide.
Detection of antibodies using the microscopic agglutination test mat has been the most common diagnostic method used for the diagnosis of canine leptospirosis 10 vaccination with commercially available leptospirosis vaccines will produce detectable mat titers 10 see algorithm 2 for more information on mat results.
In leptospirosis antibodies can be demonstrated in the serum by mat.
Major disadvantages of microscopic agglutination test mat.
A single elevated mat titer in a patient with a compatible febrile illness and suspected exposure suggests acute leptospirosis.
Does the mat always work.
Testing may include culture and or serology.
The mat is the keystone for a correct diagnosis wolff 1954.
As with other serology assays vaccination complicates the interpretation of titers.
A severe form which includes jaundice kidney failure and bleeding is called weil disease.
In the endemic regions there may be a substantial proportion of the population with elevated titres of mat.
An interpretation is included in each mat report at no extra charge and additional consultation is also available.
What is the mat test for leptospirosis.
In equine abortion cases a mat titer of 1 6400 or higher is considered.
For the reading of mat titers it is highly recommended to use a darkfield microscope with a high contrast between the leptospires and the dark background.
Sera are screened at a 1 100 dilution and those showing agglutination are then serially diluted further to determine a titer endpoint.
A series of cultures of different leptospires are incubated with serial dilutions of serum.
