The utility of polymerase chain reaction for diagnosis of lumpy skin disease in cattle and water buffaloes in Egypt

2011 ◽  
Vol 30 (3) ◽  
pp. 821-830 ◽  
Author(s):  
S.S.A. SHARAWI ◽  
I.H.A. ABD EL-RAHIM
2016 ◽  
Vol 40 (1) ◽  
pp. 83-88 ◽  
Author(s):  
Khitam Mahdi Mhemid

     This study is conducted to detect lumpy skin disease virus in Babylon, Al-Qadysia and Al-Muthana governorate during autumn 2014 using conventional polymerase chain reaction. A total of 150 specimens: 50 whole blood samples, 50 skin nodular biopsies and 50 tick samples were collected from infected animals of different breeds, genders and ages during lumpy skin disease outbreak. The results revealed that 104 cases (69.33%) were positive for lumpy skin disease virus by using polymerase chain reaction, with significant (P<0.05) differences between positive and negative cases. Out of 50 blood samples, 22 cases (44%) were positive for lumpy skin disease virus. The nodular skin samples collected from slaughtered animals showed 36 positive cases (72%), whereas 46 tick samples (92%) were positive for the disease, with significant (P<0.05) difference among them. According to gender, the finding showed significant results of lumpy skin disease in females (78.78%). It was recorded that higher percentage of positive cases was found in Friesian cattle (100%), crossbreed (73.58%) while native breed was (50.76%) with significant (P<0.05) difference among them. Regarding age groups, the results showed that all ages were susceptible to lumpy skin disease and significantly not different.


Author(s):  
G. W. Hacker ◽  
I. Zehbe ◽  
J. Hainfeld ◽  
A.-H. Graf ◽  
C. Hauser-Kronberger ◽  
...  

In situ hybridization (ISH) with biotin-labeled probes is increasingly used in histology, histopathology and molecular biology, to detect genetic nucleic acid sequences of interest, such as viruses, genetic alterations and peptide-/protein-encoding messenger RNA (mRNA). In situ polymerase chain reaction (PCR) (PCR in situ hybridization = PISH) and the new in situ self-sustained sequence replication-based amplification (3SR) method even allow the detection of single copies of DNA or RNA in cytological and histological material. However, there is a number of considerable problems with the in situ PCR methods available today: False positives due to mis-priming of DNA breakdown products contained in several types of cells causing non-specific incorporation of label in direct methods, and re-diffusion artefacts of amplicons into previously negative cells have been observed. To avoid these problems, super-sensitive ISH procedures can be used, and it is well known that the sensitivity and outcome of these methods partially depend on the detection system used.


2006 ◽  
Vol 175 (4S) ◽  
pp. 485-486
Author(s):  
Sabarinath B. Nair ◽  
Christodoulos Pipinikas ◽  
Roger Kirby ◽  
Nick Carter ◽  
Christiane Fenske

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