Virulence

We discovered and characterized a temperate, transducing bacteriophage phage (Ba1) for the avian respiratory pathogen Bordetella avium. With regard to host range, Ba1 grew on six of nine clinical isolates of B. avium but failed to grow on any tested strains of B. bronchiseptica,…

Salmonella enterica serovar Typhimurium (S. Typhimurium) es una bacteria Gram negativo y un patógeno gastrointestinal de importancia mundial, ya que es uno de los principales agentes causantes de intoxicación alimentaria y de enfermedades invasivas no tifoideas, principalmente e…

The objectives of this research were to determine the virulence, genetic stability and immunogenicity of a specific Mycoplasma gallisepticum laboratory strain. Virulence of the strain was determined by evaluation of clinical symptoms before and after ten sequential passes in bot…

Mycoplasma gallisepticum is one of several infectious agents contributing to chronic respiratory disease (CRD) in chickens and infectious sinusitis in turkeys. It is highly contagious in industry flocks spreading via airborne dust, droplets or feathers. Infection causes lowered …

The genus Striga is composed of about 50 species, all obligate parasites of tropical cereals and legumes. The genetic structure of S. asiatica of Benin and S. gesnerioides (SG) were analyzed using AFLP. In the former, the mean within population genetic distances ranged from 0.02…