5 burning questions that remained with you after vaccination: …

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Question 1. Does it make sense to put several vaccinations against coronavirus? For example, a Russian drug and, if possible (for example, during a trip to another country), a foreign one?

According to the recommendations of the World Health Organization (WHO), there are “routine” and “emergency” vaccinations. Currently, due to the unfavorable epidemiological situation in Russia, an “emergency” vaccination is being carried out (until the level of collective immunity is reached at least 60% of the adult population). “Emergency” vaccination is required 6 months after the illness or 6 months after the primary vaccination. It is possible to combine preparations for vaccination and revaccination according to the manufacturer’s instructions for the medical use of the product, but it is not recommended to reduce the interval between vaccines for less than 6 months, as this will negatively affect the functioning of the immune system.

Question 2. How soon after vaccination does it make sense to take an antibody test? And does it need to be done? And, most importantly, what is the lower limit of antibodies, the reference value?

Vaccine manufacturers recommend testing for antibodies no earlier than 42 days after the first vaccine (double vaccination). From July 5, 2021, Roszdravnadzor recommends providing laboratories with the measured value of quantitative antibodies to COVID-19 in the unified international measurement units BAU / ml. This is necessary to trace the results of the study to the international standard of WHO. The minimum antibody value depends on the testing laboratory. The protective antibody level that reliably predicts the preventive efficacy of a vaccine has not yet been determined. Work is underway to establish such a parameter, however, so far at the research stage.

The effectiveness of the vaccine varies depending on the manufacturer, but does not reach 100%. The vaccine protects a person from a severe course of the disease. However, after vaccination, it is necessary to observe sanitary rules, such as social distance, hand washing, use of masks indoors.

Question 3. What should people with chronic diseases, for example, cancer, diabetes, allergies, hypertension, do? How can they protect themselves from the severe course of the disease when infected?

It is known that people with chronic diseases get sick with a new coronavirus infection much more severely. Therefore, with the stabilization of concomitant cardiovascular pathology, diabetes mellitus, pathology of the kidneys or the respiratory system, vaccination should be carried out. The attending physician recommends the vaccine, the necessary examinations before and after vaccination. Patients with cancer should follow the recommendations of a specialist. Patients with seasonal allergies are vaccinated outside the flowering season, premedication is recommended (administration of drugs that reduce the possibility of an allergic reaction) before vaccination. If you are allergic to the components of the vaccine, vaccination is contraindicated. To protect such people, herd immunity is created.

Question 4. When should pregnant women be vaccinated? What trimester?

Pregnant women have a hard time with viral diseases, including coronavirus. Vaccination is carried out in the III trimester in the absence of contraindications.

Question 5: How can the incidence of COVID-19 after the first dose of the vaccine be explained? And in the case of a confirmed virus, there is no point in doing a second vaccination?

The vaccine induces an immune response in humans, not active disease, so a COVID-19 vaccine cannot result in a positive PCR test, an antigen test, or a novel coronavirus infection. After vaccination, there is a “weakening” of the immune system, its “restructuring” for the production of antibodies. Therefore, after vaccination, it is especially important to observe sanitary rules, avoid large crowds, limit physical activity and alcohol. It should be noted that vaccination is carried out in the absence of acute / exacerbation of chronic diseases. To exclude vaccination against COVID-19, when the virus has already entered the human body, an antigen test is performed on the day of vaccination.

If a person still fell ill after the first stage of vaccination, the second stage is no longer carried out. In this case, natural (acquired) immunity is formed.

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