Bird fancier's lung (BFL) is a pulmonary disease caused by inhalation of avian proteins. The involvement of the microorganisms of droppings has been assumed in the past and this idea still persists today. Our study aimed to compare by immunoprecipitation assay the detection of antibodies against both droppings and microorganisms in the sera of patients (n=15) and asymptomatic exposed controls (n=18). We found that 14/15 BFL patients had negative serological results for isolated microorganisms of the droppings, only one positive against Enterobacter sakasakii. Serological arguments were in accordance with diagnosis in 87 % of cases by testing à la carte antigens from each bird dropping versus 20 % using the standard antigenic panel. Otherwise, the microorganisms antigens issued from dropping flora were negative in 93 % of cases. Consequently, it's preferable to use the total extract from the patient's bird droppings to establish the serodiagnosis of the disease.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1099/jmm.0.000586 | DOI Listing |
Open Vet J
November 2024
Department of Physiology, College of Veterinary Medicine and Surgery, Shatrah University, Shatrah, Thi-Qar, Iraq.
Background: In poultry, despite intense vaccination programs for prevention of Newcastle disease (ND), the ND infection still affects, causing high mortality in most vaccinated flocks.
Aim: This study aimed to determine whether the genetic material of the ND virus has changed and has become incompatible with the vaccines used in Iraq.
Methods: Real-time PCR was used to analyze genetic variation in the fusion (F) and haemaggluatination neuraminidase (HN) genes, as well as mRNA expression changes in inflammatory biomarkers, including C-reactive protein (CRP), interleukin 6, interleukin-1 beta (IL-6, IL-1β), and gamma interferon (IFN-γ).
Arch Razi Inst
June 2024
Department of Poultry Diseases, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
Highly pathogenic avian influenza (HPAI) is a viral disease caused by some H5 and H7 subtypes of influenza virus type A in most species of birds, especially poultry. HPAI viruses are among the most challenging viruses that threaten both human and animal health. Consequently, various strategies, such as the use of vaccines have been proposed to control the disease.
View Article and Find Full Text PDFVaccine
December 2024
Poultry Diseases Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt.
Avian infectious bronchitis virus (IBV) is responsible for a highly contagious disease that poses a significant threat to the poultry industry due to its high rates of evolution. The occurrence of vaccination failure can frequently be attributed to the emergence of novel strains that exhibit antigenic divergence from conventional vaccine strains. This study aims to evaluate the safety and efficacy of the Eg/1212B-based live attenuated virus vaccine indicated for immunization of chickens against nephropathogenic GI-23 variant strains reported globally.
View Article and Find Full Text PDFPoult Sci
December 2024
School of Agriculture and Food Systems, West Virginia University, Morgantown, WV 26506.
Serotonin is a potent immunomodulatory neurohormone. Activities of the serotonergic and immune systems are often reported together in poultry studies with unidirectional analyses focused on serotonergic signaling mediating immune response. Considering serotonin's relevance across a range of immune-related poultry topics, elucidation of whether the immune system affects the serotonergic system can provide valuable insights into the bi-directionality of poultry neuroendocrine-immune interactions.
View Article and Find Full Text PDFLung India
January 2025
Department of Pulmonary Medicine, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India.
Background: Bird fancier's disease is a type of HP occurring due to exposure to bird's antigen. The diagnosis is quite difficult as it requires the identification of an inciting agent with findings of HRCT and lung biopsy. The exposure is usually done by history with antigen-specific IgG and/or specific inhalational challenge testing.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!