ERIC-PCR genotyping of emergent serovar C-1 isolates of Avibacterium paragallinarum from Mexico.
Between 2008 and 2010, 14 isolates of Avibacterium paragallinarum were identified as serovar C-1 in Mexico. All isolates were obtained from commercial laying hens suffering infectious coryza despite a history of vaccination. The enterobacterial repetitive intergenic consensus-based PCR genotyping showed that all isolates had a common pattern. Until recently, serovars A-1, A-2, B-1, and C-2 were the serovars prevalent in Mexico. Serovar C-1 has been identified in Japan and recently in the Americas in Ecuador. Our current study suggests that Av. paragallinarum serovar C-1 is an emerging serovar in Mexico. Our results also indicate that the Mexican isolates of Av. paragallinarum serovar C-1 may have a clonal relationship. Knowledge of the genetic diversity of Av. paragallinarum may be of value in understanding vaccine performance and identifying the best combination to achieve broader protection.
Centro de Investigación y Estudios Avanzados en Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Toluca, 50200, México.
V
V
Morales-Erasto
A
A
García-Sánchez
C
C
Salgado-Miranda
M
M
Talavera-Rojas
F
F
Robles-Gonzalez
P J
PJ
Blackall
E
E
Soriano-Vargas
D000818:Animals; D001424:Bacterial Infections / Q000453:epidemiology / Q000382:microbiology / Q000662:veterinary*; D002645:Chickens; D021821:Communicable Diseases, Emerging / Q000662:veterinary*; D005260:Female; D020563:Gammaproteobacteria / Q000145:classification / Q000235:genetics*; D005838:Genotype; D008800:Mexico / Q000453:epidemiology; D016133:Polymerase Chain Reaction / Q000379:methods / Q000662:veterinary*; D011201:Poultry Diseases / Q000453:epidemiology / Q000382:microbiology*