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A separate problem is the treatment of hypertension in patients with COVID-19. The presence of a history of hypertension in patients with COVID-19 was associated with a more severe course of infection, in contrast to patients who did not have hypertension. According to modern concepts, during the COVID-19 pandemic, patients with hypertension should carefully monitor their blood pressure levels and take constantly prescribed medications. This also applies to the use of so-called blockers of the renin-angiotensin system for the treatment of patients with hypertension: angiotensin-converting enzyme inhibitors and angiotensin II receptor blockers. A number of recent studies show that these groups of drugs not only do not increase the risk of infection with the virus, but also significantly improve the course of coronavirus disease.

The use of thiopurine (azathioprine and mercaptopurine) reduces the immune response to viruses, which is associated with an increased risk of opportunistic infections. There is limited evidence that they increase the risk of respiratory infections. The risks and benefits should be considered, but most patients can continue on a stable dose. In patients in stable remission, elderly patients and in the presence of concomitant pathology, it is recommended to stop taking thiopurine. During a pandemic, it is recommended to avoid starting thiopurine or increasing the dose, which will allow patients to avoid potential side effects. If the patient is in contact with a COVID-19 person, temporary withdrawal of thiopurine for 2 weeks should be considered. If a patient tests positive for SARS-CoV-2 and/or develops COVID-19, temporary discontinuation of thiopurine may be recommended until the patient clears the infection.

Учитывая, что аналогичная картина имела место и в предыдущие годы, в Украине произошло накопление среди детского населения слоя восприимчивых к полиомиелиту. Кроме того, начиная с апреля 2016 г., оральная (живая) полиомиелитная вакцина (ОПВ), которая в Украине используется, начиная с 3-й прививки , не содержит полиовирус типа 2 (двухкомпонентная ОПВ, которая теперь применяется в мире, содержит только полиовирусы). тип ов1 и 3). Указанное также способствует снижению как индивидуального, так и популяционного иммунитета к полиовирусу типа 2. Следствием стала вспышка полиомиелита, вызванная вакцинородственным полиовирусом типа 2 (вирусом вакцинного происхождения, что в процессе циркуляции в низко иммунной популяции приобрел свойства нейровирулент .). На эту вспышку не было адекватного реагирования, а именно проведение дополнительных туров вакцинации детей в возрасте до 6 лет, чтобы прекратить циркуляцию вакцинородственного вируса. В январе 2022 г. возникла новая вспышка.

Back in 2002, according to the justification of the Institute, inactivated polio vaccine (IPV) was introduced into the Immunization Calendar of Ukraine for the 1st vaccination against poliomyelitis (children continued to receive OPV for the remaining 5 doses by age). In 2006, this vaccine was also used for the second vaccination. This made it possible to first reduce and then practically stop the cases of vaccine-associated paralytic poliomyelitis in Ukraine. Since then, the issue of switching to a full IPV vaccination scheme in Ukraine has been repeatedly raised, as has been practiced for many years in all European countries, the USA, Canada, and Australia. Currently, this problem is becoming even more urgent, given both the epidemic situation and the prospects for Ukraine's accession to the EU.

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