Yazar "Padron-Perez, Beatriz" seçeneğine göre listele

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  • Küçük Resim
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    A one-year descriptive epidemiology of zoonotic abortifacient pathogen bacteria in farm animals in Turkey
    (Elsevier Ltd, 2021) Sakmanoğlu, Aslı; Uslu, Ali; Sayın, Zafer; Sanioğlu Gölen, Gökçenur; İlban, Ayşegül; Padron-Perez, Beatriz; Karyeyen, Yasemin; Gök, Ayten; Tekindal, Mustafa Agah; Erganiş, Osman
    This study aimed to investigate the epidemiology of 10 suspicious pathogenic bacteria in 250 stomach contents of aborted calf, lamb, and goat foetuses in 2019. The 155 positive samples obtained from PCR consisted of 53 (58.88 %) bacteria from 90 lamb samples, 10 (43.47 %) bacteria from 23 goat samples, and 92 (67.15 %) bacteria from 137 calf samples. The five most common bacteria associated with abortions were Brucella melitensis, 52 (20.9 %); B. abortus, 13 (5.2 %); Leptospira spp., 34 (13.6 %); Campylobacter fetus, 52 (20.9 %); and Coxiella burnetii, 4 (1.6 %). The highest rate of B. melitensis (65.4 %), B. abortus (69.2 %), Leptospira spp. (67.6 %), and C. fetus (50 %) was detected in the aborted calf samples. The highest individual rate was that of C. fetus (5.2 %). The flock-herd rates of B. melitensis, B. abortus, Leptospira spp., C. fetus, and C. burnetii infections in the 29 farms studied were 34.48 %, 20.69 %, 62.06 %, 82.75 %, and 3.44 %, respectively, with a confidence level and interval of 95 %. The frequency of abortions caused by Leptospira spp. and Campylobacter fetus may be related to increasing in B. melitensis. The rates of aborted calf, lamb, and goat foetuses among the various sampling periods and regions were significantly (P < 0.01) different. In conclusion, precautions should be applied to reduce the spread of these bacterial agents in high-risk areas and to eliminate the risk of harbouring these zoonotic infections in humans. Therefore, these results must be taken into account in the development of control and protection strategies against abortions in animals.
  • Küçük Resim
    Öğe
    Investigation of the nontypical Pasteurella multocida strains obtained from multiple sources, regions, and times: an unexpected increase was detected
    (TUBITAK, 2021) Sakmanoğlu, Aslı; Uslu, Ali; Karyeyen, Yasemin; Sanioğlu Gölen, Gökçenur; İlban, Ayşegül; Padron-Perez, Beatriz; Tekindal, Mustafa Agah; Erganiş, Osman
    In this study, it was aimed to isolate Pasteurella multocida from 1250 lung samples (calf, sheep, and goat), with respiratory system infection, such as nasal discharge, cough, fever, and to investigate the phenotypic and genotypic properties of this bacteria. As a result, a total of 92 P. multocida were obtained, of which 66 (71.73%) were from calf, 19 (20.65%) from sheep, and 7 (7.6%) from goat. The A:3A type was the most common type with 34 isolates (36.95%), including 30 from calves (45.45%), and 4 from sheep (21.05%). An alternate mPCR protocol was developed to determine capB and capE genes and 5 from 41 nontypical strains were detected as type B (n = 3; 3.26%) and type E (n = 2; 2.17%) via this novel protocol. Twenty-six nontypical strains presented nonmucoid colonies. The serotype of 11 typical and 13 nontypical strains was not able to be determined by mPCR. The prevalences of nontypical P. multocida were significantly (p < 0.01) different by determinants. Nineteen virulence-associated gene profiles were determined, and the highest percentages of genes were ompA (70.65%), ptfA (69.56%), and tadD (64.13%). Also, there was a higher rate of similarity between calf and sheep strains. In conclusion, nontypical strains may commonly cause pneumonia in farm animals. These results may be considered for future vaccine studies.