Miller Fisher syndrome is one of the forms of Guillain–Barrе́ syndrome, characterized by a clinical triad that includes ophthalmoplegia, ataxia and areflexia, with the possible addition of moderate peripheral tetraparesis. During the year that has passed since the start of the pandemic of the new coronavirus infection COVID‑19, international publications have presented a few cases of Miller Fisher syndrome, which developed in patients at different times after the COVID‑19 infection – from 3–5 days to 3 weeks. The article presents a description of a clinical case of Miller Fisher syndrome, which occurred with 34‑year‑old man 21 days after the COVID‑19 infection. The clinical manifestations of Miller Fisher syndrome were typical and included diplopia, areflexia, and ataxia. At the beginning of the disease, there was a transient episode of speech impairment in the form of mild dysarthria. Oculomotor disorders predominated in the clinical picture over other components of the classical triad. On the background of treatment with human immunoglobulin G, there was a complete regression of symptoms.This description of Miller Fisher syndrome, which developed after the postponed infection with COVID‑19, is the first in Russia. The presented case demonstrates the ability of the SARS‑CoV‑2 virus to induce the development of an autoimmune disease. Practitioners should take into account the possibility of Miller Fisher syndrome developing in the event of an acute onset of diplopia, ataxia and areflexia in patients after a previous COVID‑19 infection.

This article contains studies, during which the removal of zinc from industrial wastewater of the OOO Rostselmash machine-building plant (Rostov-on-Don) was carried out, using a sorption cleaning method, based on the use of an anacard nut shell grown in the Republic of Côte d'Ivoire. According to the experimental data, the cleaning efficiency was 94%, which confirms the ability of the anacard nutshell to carry out sorption purification of industrial wastewater.

Выполнена оценка загрязнения атмосферного воздуха городов Ростовской области. Одним из основных источников загрязнений в горо-дах является автомобильный транспорт. Вы-явлено, что наиболее загрязнен атмосферный воздух в г. Новочеркасске, наименее -в Цимлянске. Риск неспецифических хрониче-ских эффектов составил от 0,22 до 0,015 в за-висимости от города.The paper considers the assessment of air pollution in the cities of the Rostov region. The main source of pollution in cities is motor transport. It has been revealed that the most polluted air is in the city of Novocherkassk, the least -in Tsimlyansk. The risk of non-specific chronic effects ranged from 0.22 to 0.015 depending on the city.Ключевые слова: загрязнение атмосферы, риск для здоровья.

A study was conducted to assess air pollution in Rostov-on-Don. The main source of air pollution is motor vehicles, whose contribution to total anthropogenic emissions reaches 91.3%. Despite the reduction in the influx of harmful substances, air pollution by suspended solids and nitrogen dioxide exceeds permissible sanitary and hygienic standards. As a result of preliminary ranking of pollutants, it was established that nitrogen dioxide emissions are the greatest potential threat to the population.