Vaccination against COVID-19 Patients with Allergic Diseases. The Position of the Allergologist-Immunologist. Literature review

Relevance. Currently, the development of vaccines against COVID-19, their clinical trials are actively continuing, and the effectiveness of the vaccines used is being analyzed. A very important issue will be how and when to vaccinate patients with various chronic diseases, what are the relative and absolute contraindications for vaccination, how various diseases can affect the effectiveness of vaccination. Aims. To present an overview of the most significant published materials on the issue of vaccination against COVID-19 patients with allergic diseases, as well as the likelihood of developing adverse events of an allergic nature in response to the introduction of the vaccine. Conclusions. An active study of vaccines, their effectiveness and safety, demonstrates to us the high reliability of these drugs and the absence of high risks of adverse events in comparison with other vaccines. Anaphylactic reactions to the introduction of COVID-19 vaccines are not more common than for any other vaccines used in international medical practice. © Markelova EV, et al.

Immune mechanisms of SARS-CoV-2 and potential drugs in the prevention and treatment of COVID-19

The lack of specific vaccines against SARS-CoV-2, as well as chemotherapy, significantly affected the spread of infection and the number of adverse outcomes of COVID-19. With the discovery of the pathogenesis of coronavirus infection, especially immune mechanisms, the important role of the innate immunity system in interacting with the virus is obvious. The presence of comorbid conditions, as well as the aging of the body, lead to disturbances in the immune response mechanism, low interferon induction, depletion of CD8+-lymphocytes and natural killers and suppression of the effectiveness of both innate and adaptive immunity. The review discusses various mechanisms of antiviral activity associated with the induction of interferon (IFN) production, the use of direct IFN therapy, the use of antiviral drugs, and immunotropic therapy (synthetic immunomodulators), as promising in the prevention and treatment of COVID-19. © 2020 Medical Education. All rights reserved.