Rationalizing the use of common parameters and technological tools to follow up Mycoplasma hyopneumoniae infections in pigs.

Background: Mycoplasma (M.) hyopneumoniae is associated with respiratory disease in pigs and is the primary agent of enzootic pneumonia. Quantification of M.

Long-term follow-up of Mycoplasma hyopneumoniae-specific immunity in vaccinated pigs.

Mycoplasma hyopneumoniae is the primary agent of enzootic pneumonia in pigs. To minimize the economic losses caused by this disease, M. hyopneumoniae vaccination is commonly practiced.

Different local, innate and adaptive immune responses are induced by two commercial bacterins and an adjuvant alone.

Introduction: Enzootic pneumonia still causes major economic losses to the intensive pig production. Vaccination against its primary pathogen, , is carried out worldwide to control the disease and minimize clinical signs and performance losses. Nonetheless, the effects of both infection with, and vaccination against on the innate and adaptive immune responses remain largely unknown.

Novel Quantitative Assay to Describe In Vitro Bovine Mastitis Bacterial Pathogen Inhibition by Non- Staphylococci.

In this paper, we describe a new quantitative method to evaluate and quantify in vitro growth inhibition of mastitis-related bacteria. Colony-forming units of ( = 10), ( = 10), and ( = 10) were quantified after their growth on top of layers of trypticase soy agar (TSA) containing six different concentrations (varying from 10 to 10 CFU/mL) of bovine non- staphylococci (NAS), i.e.

Colonization and local host response following intramammary Staphylococcus chromogenes challenge in dry cows.

Although extensive research has been performed on bovine non-aureus staphylococci (NAS), several aspects such as bacteria-host interaction remain largely unstudied. Moreover, only a few mastitis pathogen challenge studies in cows have been conducted in the dry period, an important period that allows intramammary infection (IMI) to cure and new IMI to occur. We challenged 16 quarters of 4 Holstein Friesian cows at dry off with 100; 100 000 or 10 000 000 CFU of the udder-adapted S.

Transfer of Mycoplasma hyopneumoniae-specific cell mediated immunity to neonatal piglets.

Mycoplasma hyopneumoniae is the primary agent of enzootic pneumonia in pigs. Although cell mediated immunity (CMI) may play a role in protection against M. hyopneumoniae, its transfer from sows to their offspring is poorly characterized.