Mycobacterium avium subsp. paratuberculosis (MAP) is the etiological agent of bovine paratuberculosis, also known as Johne’s Disease. It is a chronic infectious disease that primarily affects cattle but can also involve other ruminants, causing significant impacts on herd productivity and the profitability of the livestock industry.
Infection occurs predominantly through the fecal-oral route, via the ingestion of contaminated water, feed, or milk. Calves are the most susceptible to infection, although clinical signs generally manifest only in adulthood. The bacterium is slow-growing and exhibits high environmental resistance, which complicates the control of the disease.
Clinically, paratuberculosis is characterized by chronic diarrhea, progressive weight loss, a drop in milk production, and, in advanced stages, the death of the animal. Although many animals remain asymptomatic for long periods, they can shed the agent into the environment, contributing to the silent dissemination of the disease within the herd.
The control of paratuberculosis is based on management and biosecurity measures, including the separation of calves at birth, rigorous hygiene of facilities, control of animal origin, and sanitary culling of positive individuals. Currently, there is no effective curative treatment, and vaccination, when used, plays only a complementary role in the control of the disease.
Laboratory testing is fundamental for the epidemiological surveillance of bovine paratuberculosis. Serological, bacteriological, and molecular methods, such as real-time PCR, allow for the detection of infected animals at different stages of the disease. Early identification and continuous herd monitoring are essential to reduce the dissemination of the agent and minimize the associated economic impacts.
Thus, the combination of laboratory diagnosis, proper sanitary management, and continuous surveillance forms the basis for the effective control of Mycobacterium avium subsp. paratuberculosis, contributing to animal health, production sustainability, and the sanitary safety of cattle herds.
In this context, the Bioperfectus bovine paratuberculosis (MAP) rapid test serves as a useful screening tool to support sanitary surveillance in cattle herds. The use of the rapid test enables the agile identification of suspected animals directly in the field, including those in early or subclinical stages, aiding in immediate decision-making such as segregation, sanitary culling, and the intensification of management and biosecurity measures. In this way, the rapid test complements conventional laboratory methods, contributing to the early detection of infection, the reduction of the spread of Mycobacterium avium subsp. paratuberculosis, and the strengthening of control strategies for Johne’s Disease.
