Bayraktar, Vasyl M.Байрактар, Василь Миколайович2025-05-272025-05-272025Bayraktar V. M. Lifecycle of Chlamydophila psittaci and optimal term to isolate elementary bodies for vaccine preparation / V. M. Bayraktar // From experimental and clinical pathophysiology to the achievements of modern medicine and pharmacy : collected papers of 7th scientific and practical conference of students and young scientists with international participation (Kharkiv, 15 May 2025). – Kharkiv : NUPh, 2025. – P. 28–30.https://dspace.onu.edu.ua/handle/123456789/41550Chlamydiae exist as two stages: infectious particles called elementary bodies and intracytoplasmic, reproductive forms called reticulate bodies. The outermost surface of the small infectious forms of Chlamydophila psittaci contain geometrically arranged spikes distributed over approximately 50% of the bacterial surface. Infection begins when elementary bodies attach to the membrane of a cell of the inner layer (epithelium) of the urogenital tract. Elementary bodies enter the cell and two hours later are transformed into reticular bodies which grow and divide over the next hours, resulting in a rapid increase in number.enChlamydophila psittacifiltrating membranelife cycleChlamyudial vaccineArticle