Author : Khlaif, Saba [ز


Clinical and molecular identification of ruling Theileria annulata strains in cattle calves in Al-Diwaniyah province, Iraq

Monyer A. Alfatlawi; Asaad A. Jasim; Noor E. Jarad; Saba F. Khlaif

Iraqi Journal of Veterinary Sciences, In Press
DOI: 10.33899/ijvs.2020.126429.1319

This study aimed to investigate the evolutionary status of T. annulata in Al-Diwaniyah province, Iraq. In this study, the clinical examination of 50 infected animals was performed with blood sample collection (2.5ml per animal), and drug targets cytochrome b, a vital component of the electron transfer chain in the mitochondria of the protozoan, cytb gene was targeted using a polymerase chain reaction (PCR) procedure. Also, 18S rRNA gene as a molecular target for the PCR and a partial gene sequencing (PGS) were included. The PCR that involved using the 18S rRNA and cytb genes as genetic targets revealed amplification of the targeted pieces at 620bp and 1092bp, respectively, in all tested samples. The18S rRNA gene sequence of local T. annulata isolates were aligned with global reference strains for T. annulata recorded in the GenBank. The local strains were close, 100%, in their identity to isolates from Iran, Turkey, and Pakistan; however, they were 99% similar to a nucleotide sequences from India and Bangladesh. Diseased calves showed clinical signs such as high fever (40.3-41.5°C), decreased appetite or in appetence, asymmetrical enlargement of superficial lymph nodes particularly the pre-scapular ones, some cases with diarrhea, pale or icteric mucus membrane of eyes, bulging eyes, lacrimation, ecchymotic hemorrhages on the sclera, incoordination, nervous signs (Dullness, depression, lethargy), salivation, and bloated young calves. The data observed from the present inspecting work may reveal genetic evolution in the local strains with others recorded in the GeneBank. This means that our local strains might have close relationships with some global strains.

The genetic relationship for Klebsiella pneumoniae isolated from human urinary tract and beef

Saba Falah Klaif; Hassan Naser; Jenan N. Sadeq

Iraqi Journal of Veterinary Sciences, 2019, Volume 33, Issue 1, Pages 75-80
DOI: 10.33899/ijvs.2019.125531.1053

The present study aimed to describe the genetic relationships of zoonotic characterization of Klebsiella pneumoniae isolated from Human urinary tract and beef. The study includes (50) urine samples from human and (50) beef samples. The isolation and identification of Klebsiella pneumonia were done by using enrichment culture method and Vitek 2, then confirmed by PCR technique based on 16S ribosomal RNA gene which designed in this study using NCBI-GenBank (LT599801.1) and DNA sequencing was done on some positive isolates. The results show that Klebsiella pneumoniae was isolated from Beef at 38(76%) And from human at 32(64%) by vitek2. The PCR technique was show highly sensitive and specific confirmative detection of Klebsiella Pneumonia isolates at Clarify DNA sequencing of a partial sequence of 16S ribosomal RNA gene was shown homology sequence identity highly with NCBI-Blast Klebsiella pneumoniae isolates. The phylogenetic analysis was show clear genetic similarity at (0.5 genetic change) between human and beef in Klebsiella pneumoniae isolates. The gene sequence deposited into NCBI-GenBank accession numbers (MF314450.1, MF314451.1, MF314452.1, MF314453.1). In conclusion, the study presents the first report in Iraq of genetic relationship among K. pneumoniae isolates from beef and humans. Therefore, it is essential to define the role of animals as an important source for the distribution of pathogen related to public health.

Molecular characterization of enterohemorrhagic E. coli O157 and O153 isolated from tissue camel and human stool samples in Al-Diwaniyah, Iraq

Saba Falah Klaif; Zeena Foaad Saleh; Alaa abd alkadhem Jawad

Iraqi Journal of Veterinary Sciences, 2019, Volume 33, Issue 1, Pages 81-86
DOI: 10.33899/ijvs.2019.125530.1052

The present study aimed to describe the genetic relationships of zoonotic characterization of Escherichia coli isolated from human and livestock camel clinical infection. The study includes collected (50) meat of camel and (50) stool human samples. These samples were foreword to traditional bacterial isolation and identification using enrichment culture method and biochemical tests, then confirmed by PCR technique based on Gyr B gene Escherichia coli and DNA sequencing was done on some positive isolates. The results show that Escherichia coli were isolated from animals at 42 (84%) and 39 (78%) from human infection. The PCR technique was show highly sensitive and specific confirmative detection of Escherichia coli the positive results into 40 (95%) meat sample of camel, and 35 (89.7%) stool sample of a human. To evaluate of Virulence E.coli,we used specific virulence hlyA gene from NCBI-GenBank, published sequence of E. coli hly A gene (Genbank code: X94129.1) and the results show high of presence of virulence gene hly A in camel in percentage (19) 45% than of virulence gene in human (15) 38%. DNA sequencing of a partial sequence of GyrB gene was shown highly homology sequence identity with NCBI-Blast Escherichia coli strain O157H7 isolates from human and O153H3 from the camel. The phylogenetic analysis was shown there is clear genetic similarity at between human and animal’s E. coli isolates and then the gene sequence deposited into NCBI-Genbank accession numbers (MG560867.1, MG560866.1). Also, study design for detection of some virulence gene hly A Escherichia coli. In conclusion, there prevalence E. coli in humans and camel. Therefore, it is essential to define the role of animals as an important source for the distribution of pathogen related to public health. Our study found gyrB gene sequence could be used for identification and making a phylogenetic analysis of gyrB nucleotide.