Virbac Diagnostics

Speed V-Diar 4 & Speed V-Diar 5

Speed V-Diar 4 & Speed V-Diar 5 picture

Rapid combined detection of Coronavirus, Rotavirus, Cryptosporidium parvum, E. coli F5 and CS31A antigens

Presentation Advantages

Method : Immunochromatographic strip test

Analysis : Detection of antigens specific to:
Rotavirus (group A protein)
Cryptosporidium parvum (oocysts)
E. coli (surface antigens K99(F5) and non-fimbrial adhesin CS31A)

Sample : Faeces

Preparation : 2 minutes

Reading : 15 minutes

Storage : 18 months at room temperature (2°C – 30°C)

Presentation : V-Diar 4: 5 tests and 10 tests
V-Diar 5: 4 tests and 10 tests

Reliability : Each strip has been tested against the reference tests (ELISA, Latex agglutinin, bacteriological culture, or modified Ziehl-Nielsen staining).

  Sensitivity Specificity
Rotavirus 93.5 % 100%
Coronavirus 94.3% 99.2%
Cryptosporidium Parvum 97.2% 95%
E. Coli F5 93.5% 99.2%
E. Coli CS31A 89% 93%


Speed V-Diar enables the rapid identification, in only 15 minutes, of the causative agents of neonatal diarrheas.

Simple, Speed V-Diar does not require any specific equipment. It can be undertaken during an on-farm visit and gives an immediate result.

Stable, Speed V-Diar can be stored for 18 months room temperature, between 2°C and 30°C

Why use Speed V Diar ?

Neonatal diarrhea is the principal cause of mortality and growth retardation in calves under 1 month of age. They represent more than 25% of the reasons for consultation on farms (2). Due to the similarities seen in the symptoms between bacterial, viral, or parasitic diarrheas, laboratory identification is essential.

Furthermore, associations of various different pathological agents are common.
A precise etiological diagnosis enables a specific treatment protocol to be instigated at the farm and adapted preventive measures throughout the calving season.

When use Speed V Diar ?

Speed V-Diar can be used to determine which pathological agents are implicated in calf diarrhea. The Speed V-Diar test is carried out from the first signs of diarrhea, before any form of treatment is administered.

On a larger scale, Speed V-Diar can be used to identify the pathological agents that are present on the farm from the first few cases of diarrhea in the calving season. This identification enables the instigation of appropriate sanitary and prophylactic measures.

Instructions for use



(1) Internal study, BVT
(2) ROUSSEAU C. Pathologie du veau. Activéto, 2002, 6
(3) DEVAUX E. Les dernières données sur les colibacilloses du veau. Dépèche Vétérinaire, 2002, 718