Epidemiological, Clinical, and Laboratory Features of Children with SARS-CoV-2 in Ukraine.

Introduction: In December 2019, the Chinese city of Wuhan reported the first cases of pneumonia from a new type of beta coronavirus named SARS-CoV-2. In the early days of the COVID-19 outbreak, paediatric patients were thought to be immune to the new virus; however, further studies have shown people of all ages to be susceptible to the virus.

Objective: Identify and describe the clinical and epidemiological features of COVID-19 among hospitalized children in Ukraine.

Analysis of Relative Average Length of Telomeres in Leukocytes of Women with COVID-19.

Coronavirus disease (COVID-19) is an acute infectious disease of the respiratory tract caused by a new SARS-CoV-2 coronavirus. A global vaccination program against SARS-CoV-2 continues, and the incidence of COVID-19 worldwide is significantly decreasing. However, among millions of those who survived COVID-19, numerous groups will need assistance due to increased clinical consequences after COVID-19.

Clinical course of COVID-19 in hospitalized children of Ukraine in different pandemic periods.

Background: The coronavirus infection (COVID-19) pandemic has seen a progressive increase in childhood morbidity worldwide. Continuous mutation of the SARS-CoV-2 virus causes the wave-like course of the COVID-19 pandemic, which is characterized by an undulating course and the predominance of different variants of the SARS-CoV-2 virus. There are many reports that the clinical picture may vary depending on the circulating strain of the virus [7-11, 13-16].

Relationship between the Prevalence of ACE1 I/D Polymorphism Genotype II and Covid-19 Morbidity, Mortality in Ukraine and in Some Europe Countries.

Coronavirus disease (COVID-19), which was first recorded in China in December 2019, quickly spread to other countries and in a short period of time, the local outbreak escalated into a pandemic. There are significantly more cases of COVID-19 morbidity and mortality in European countries than in East Asia, where the disease was first detected. Such population differences are unique, especially for SARS-CoV-2 and are due to both socio-behavioral differences and features of the gene pool of the population of different countries.