Epidemiology and clinical and laboratory characteristics of chickenpox in the Northern region

The article examines the distribution of chickenpox in northern latitudes, with an emphasis on climatic and socioeconomic factors that influence the dynamics of the disease. Chickenpox remains a widespread infection, especially among children, and despite the availability of vaccines, it continues to cause outbreaks and remains relevant. Currently, several vaccines for the prevention of the disease with varying levels of effectiveness and safety have been registered in the world, but vaccination coverage remains insufficient [1]. As a rule, chickenpox has a mild course, but patients with complications of the disease are hospitalized every year, and fatal cases are also recorded [2]. The most common non-specific complications include the addition of bacterial flora, mainly of streptococcal and staphylococcal etiology (purulent skin lesions, abscesses, arthritis, osteomyelitis), and specific complications include damage to the central and peripheral nervous system [3]. Varicella Zoster virus infection is highly contagious and common on all continents, but epidemiological patterns are observed in arctic and subarctic regions.