In this study, we report a familial cluster of cases which included five patients and two close contacts who were confirmed to have coronavirus disease 2019 (COVID-19). These participants had received real-time reverse transcription-polymerase chain reaction (RT-PCR) chest X-rays (CXRs) before diagnosis. The follow-up CXRs three in the family showed significant progression, with COVID-19 pneumo...

dear editor-in-chief we read with interest the study by khazaei et al. (1) in which the authors have nicely concluded that pcr is more sensitive test than ziehl-neelsen staining and histo-pathological examination for the diagnosis of tuberculosis (tb). they have rightly pointed to use pcr, selectively, in acidfast bacilli negative paucibacillary forms of tb. however, we intend to highlight few ...

To cultivate different grape varieties according to market needs, it is necessary study the regulation mechanism of color changes in development stages grapes. In this study, RNA-sequencing (RNA-Seq) technology was used compare and analyze transcriptome data four at same stage. Among annotated differential genes, anthocyanin synthesis pathway flavonoid mainly studied. Further RT-qPCR analysis k...

Real-time reverse transcription polymerase chain reaction (RT-PCR) tests for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are occasionally repeated when clinicians suspect false-negative results, but the conditions under which RT-PCR testing is warranted remain unclear. We evaluated practice of repeat SARS-CoV-2 in 45 patients who were retested after an initial negative PCR test...

Abstract Severe acute respiratory syndrome coronavirus 2 causing disease 2019 pandemic is an enveloped virus, showing genome similarity with bat coronavirus. This virus initially infects the upper tract, subsequent spread to lower tract. Despite availability of antigen and antibody detection methods, reverse transcription-polymerase chain reaction (RT-PCR) diagnostic test choice for this novel ...

Background and Aims: Bovine viral diarrhea virus (BVDV) is considered as worldwide and economically significant infection. The aim of this study was to estimate prevalence of persistent bovine viral diarrhea infection (PI) in industrial dairies of Tehran and Alborz province, Iran. Materials and Methods: In this cross-sectional study, 102371 blood samples were collected from bovine of industria...

Abbreviations: ALT: Alanine Transaminase; AST: Aspartate Transaminase; BMI: Body Mass Index; CMV: Cytomegalovirus; Cnis: Calcineurin Inhibitors; Csa: Cyclosporine; FK Or FK-506: Tacrolimus; GRWR: Graft Recipient Weight Ratio; HAI: Histological Activity Index; HCC: Hepatocellular Carcinoma; HCV: Hepatitis C Virus; HCV RNA: Hepatitis C Virus Ribonuclic Acid; HPB: Hepatopancreatobiliary;LDLT: Livi...

Avian reoviruses (ARVs) are considered as an important cause of several diseases in poultry, particularlyarthritis and tenosynovitis. Tenosynovitis and arthritis, which are among the causes of chronic lameness inbreeder flocks, can result in reduced egg production and culling of breeder hens. In this study, the molecularcharacteristics of ARVs in some broiler breeder flocks were investigated in...