Publications by authors named "Hasan Abayli"

Article Synopsis
  • Viral enteritis significantly impacts the mortality rate of dogs under 6 months old, prompting a study on various viral pathogens in 62 diarrheal dogs.
  • The study found canine bufavirus (CBuV) in 2 dogs and canine chaphamaparvovirus (CaChPV) in 1 dog, with one also testing positive for three parvoviruses, while all were negative for canine adenovirus.
  • This research identified new strains of CBuV and CaChPV in Turkey, contributing important insights to the molecular epidemiology and understanding of enteric diseases in dogs.
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Viral enteritis is a significant threat to domestic dogs. The two primary pathogens that cause viral enteritis in dogs are canine coronavirus (CCoV) and canine parvovirus (CPV). In this study, we investigated the occurrence of CPV-2, CCoV, and canine circovirus coinfection by characterizing circulating subtypes of CPV-2 in faecal samples from symptomatic dogs admitted to veterinary clinics located in Ankara, Elazığ, Kayseri, and Kocaeli provinces of Turkey, between 2019 and 2022.

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Background: Marek's disease (MD) is a lymphoproliferative disease caused by Gallid alphaherpesvirus 2 (GaHV-2, MDV-1), which primarily affects chickens. However, the virus is also able to induce tumors and polyneuritis in turkeys, albeit less frequently than in chickens.

Results: This is the first study in Turkey reporting the molecular characterization of a MDV-1 strain detected in a flock of backyard turkeys exhibiting visceral lymphoma.

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Bovine ephemeral fever (BEF) is an arthropod‑borne viral disease characterised by a short‑term clinical expression that can lead to significant losses in high‑yielding cattle and water buffaloes. In this study, we aimed to generate a recombinant plasmid expressing the glycoprotein (G) of the BEF virus (BEFV) and to stimulate a humoral immune response to this protein in BALB / c mice immunised with the recombinant plasmid. Expression of the encoded protein was demonstrated by western blotting and immunoperoxidase tests.

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The pet cat's population and the number of viruses that infect them are increasing worldwide. Recently, feline chaphamaparvovirus (FeChPV, also called fechavirus) and feline bocaparvovirus (FBoV) infections, which are novel parvovirus species, have been reported in cats from different geographic regions. Here, we investigated FBoV 1-3 and FeChPVs in healthy cats in Turkey using PCR, where nuclear phosphoprotein 1 (NP1) is targeted for FBoV and NP for FeChPV.

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Feline calicivirus (FCV), feline alphaherpesvirus 1 (FHV-1) and feline panleukopenia virus (FPLV) as well as retroviral agents such as feline leukaemia virus (FeLV) and feline immunodeficiency virus (FIV) are important viral pathogens of cats. The aim of this study was to detect and characterise FHV-1, FPLV, FeLV, FIV and feline foamy virus (FFV) in oropharyngeal, nasal and conjunctival swabs from 93 cats that had been screened for FCV previously. We wanted to determine the possible risk factors for infection with these viruses.

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Marek's disease (MD) is a highly contagious neoplastic disease of chickens associated with economic losses, often due to visceral lymphomas. The etiological agent is MD virus serotype 1 (MDV-1), also called Gallid alphaherpesvirus 2 (GaHV-2). Despite intensive vaccination, MDV is constantly evolving and maintaining its presence in the world.

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Article Synopsis
  • - The study explores the characteristics of the SARS-CoV-2 virus, responsible for COVID-19, using Atomic Force Microscopy on different surfaces, specifically tissue culture polystyrene (TCPS) and glass coverslips.
  • - Researchers drop cast SARS-CoV-2 onto these surfaces and examine its height profiles, density, and aggregation, noting a "coffee ring effect" where virions cluster near the edges of the drops, with a higher concentration on TCPS surfaces.
  • - The effects of ethanol disinfectant on the virus were also analyzed to assess its impact on SARS-CoV-2, providing insights into the ultrastructure of the virus after treatment.
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Relatively high prevalence and mortality rates of bovine ephemeral fever (BEF) have been reported in recent epidemics in some countries, including Turkey, when compared with previous outbreaks. A limited number of complete genome sequences of BEF virus (BEFV) are available in the GenBank Database. In this study, the complete genome of highly pathogenic BEFV isolated during an outbreak in Turkey in 2012 was analyzed for genetic characterization.

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