After three years of the outbreak of Coronavirus Disease 2019 (COVID-19) pandemic, main tasks as to treatment and vaccination are still pending their solution. Today, it is known that SARS-CoV 2 coronaviruses are intracellular viral infections having an inevitable negative impact on all cells of the human body, including the blood cells. It is established that COVID-19 patients can be classified into mild, moderate, and severe. Modern literature does not describe ultrastructural changes of circulatory blood cells in patients with moderate course of this disease.

In 2022, 90 years passed since the birthday of the outstanding Ukrainian scientist-anatomist, head of the Department of Normal Anatomy of the Danylo Halytsky Lviv National Medical University, Professor Mykhailo Andriyovych Netlyukh, and 50 years since the publication of his first "Latin-Ukrainian Anatomical Dictionary (International and Ukrainian anatomical nomenclature)" (Kyiv, Naukova dumka, 1972).

In our opinion, this is the anniversary date of the Ukrainian professor-anatomist Mykhailo Andriyovych Netlyukh, our dear teacher and mentor, who tirelessly, dignified, heroically defended, nurtured and developed Ukrainian names in anatomy and medicine in general, created and enriched the Ukrainian-speaking space in the years that it is difficult to call them favourable for the development of the Ukrainian language, science and culture, affirms our grateful memory, which does not fade or wither over time. We hope that the "Latin-Ukrainian Anatomical Dictionary" by M.A. Netliukh, published 50 years ago, will delight medical students, doctors, philologists and all interested people with its language richness in new editions more than once.

After three years of the outbreak of Coronavirus Disease 2019 (COVID-19) pandemic, main tasks as to treatment and vaccination are still pending their solution. Today, it is known that SARS-CoV 2 coronaviruses are intracellular viral infections having an inevitable negative impact on all cells of the human body, including the blood cells. It is established that COVID-19 patients can be classified into mild, moderate, and severe. Modern literature does not describe ultrastructural changes of circulatory blood cells in patients with moderate course of this disease.