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Immunity is the body's complex system of defense against infection, disease, and other external influences. It consists of various cells, tissues, and organs that work together to provide defense for the body. Immunity can be innate (natural) and adaptive (acquired). Innate immunity is the body's primary defense, responding to threats without prior experience. Adaptive immunity develops in response to specific pathogens and provides a more specific and long-lasting defense. Maintaining a healthy immune system includes proper nutrition, physical activity, adequate rest, immunizations, and other measures to keep the body in balance.

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Antibodies to COVID-19 were found in every second examined Ufa citizen in June
The results of more than 3.3 thousand tests conducted in Ufa in June showed the presence of antibodies to COVID-19 in 48.4% of cases, Invitro reported. In June 2020, the indicator was equal to 9.8%, by October it had grown to 29.8%, at the end of January 2021 it exceeded 40%. Since May last year, more than 23.2 thousand people have been examined, antibodies were detected in 4......
Academician announced the need to vaccinate 80% of Russians because of the "delta" strain
With the spread of the "delta" version of the coronavirus, more than 80% of the population must be vaccinated. This was stated in an interview with Izvestia by a virologist, corresponding member of the Russian Academy of Sciences, head of the laboratory of bionanotechnology, microbiology and virology at NSU Sergey Netesov. He measured that the Wuhan variant of COVID-19 has a reproductive number (t...
Experts assess the need for an antibody test during vaccination
There is no need to do an antibody test before vaccination, but after receiving all the components of the vaccine, the analysis can show its effectiveness, experts interviewed by RBC say. “Citizens who have recovered from COVID-19 have a tense immunity for six months, which with a high degree of probability guarantees the impossibility of re-disease with COVID-19. From the point of view of experts...
Doctors called inappropriate antibody tests after vaccination
After vaccination against COVID-19 , a test for the level of antibodies to the nucleocapsid protein (N) is not suitable to check the level of immunity. Representatives of medical laboratories and doctors told RBC about this. What antibody tests against COVID-19 are needed and why. Instruction Society When vaccinated, say, with Sputnik V, Pfizer, AstraZeneca vaccines, “only antibodies to the S-prot...
St. Petersburg Research Institute announced the achievement of collective immunity in Russia
According to preliminary data from the Research Institute. Pasteur, immunity to COVID-19in Russia reached 60%. At the same time, the director of the institution stressed that in order to defeat the pandemic, it must grow to 90%. Collective immunity to COVID-19 in Russia has reached 60%, follows from preliminary data from a study by the St. Pasteur. This was stated by the director of the institutio...
Skoltech announced the discovery of an intractable “long COVID”
Sometimes a person grows antibodies that provide short-term protection against the virus present, but does not increase the titer of "long-term" antibodies that show immunity. In this case, you need the help of a doctor, “Long COVID-19”, when the level of IgM antibodies (short-term protection) increases in a person, but the IgG index (an indicator of long-term protection of the body, immunity) doe...
Итоги недели: отравление детей в аквапарке, рост заболеваемости и засуха
Results of the week: poisoning of children in the water park, an increase in the incidence and droughtPoisoning of children in the water park "Riviera" On July 12, several children were poisoned by chlorine vapors in the Kazan Riviera water park. A 9-year-old boy was hospitalized in critical condition. The child was in intensive care. He was connected to a ventilator. On July 15, the investigating...
Mishustin instructed to check the volume of COVID vaccines in Russia
Earlier, due to increased demand, there were delays in the supply of vaccines to the regions. In order to avoid these problems in the future, it was decided to inventory the volume of vaccines against COVID-19 Russian Prime Minister Mikhail Mishustin instructed the Ministry of Industry and Trade and the Ministry of Health to conduct an inventory of the volume of coronavirus vaccines in the country...
Top 8 covid vaccine myths and debunking them
By mid-July 2021, almost 800,000 Petersburgers had completed a full cycle of vaccination against coronavirus infection. After statements about mandatory vaccination of at least 65% of employees of state institutions of St. Petersburg, queues lined up in the city for the vaccine both in shopping centers and in clinics. The waiting time is 2-3 weeks. The 122 vaccination service received about 29,......
Experts respond to reports of a peak in the incidence of COVID in the fall
In the event that 60% of the Russian population is vaccinated , there should not be a new wave of COVID-19 incidence in the country in the fall, Academician of the Russian Academy of Sciences, scientific director of the Research Institute of Vaccines and Serums named after RBC told RBC. Mechnikov Vitaly Zverev. The possibility of another surge in the incidence in September-October was predicted in...
The chief sanitary doctor of the region assessed the dynamics of the incidence of COVID-19
In the Kaliningrad region, the increase in the incidence of coronavirus has decreased following the results of the last week (from July 5 to July 11). “If on the 26th calendar week we had an increase in weekly incidence of 43%, then by 27-15%,” said Elena Babur, chief sanitary doctor of the region, speaking at a round table in the Kaliningrad Chamber of Commerce and Industry. “The last week, despi...
Murashko named the proportion of cases of COVID-19 after vaccination of Russians
According to the head of the Ministry of Health, no more than 2.5% of citizens fell ill after vaccination. During the direct line, the President estimated the proportion of cases after vaccination against COVID-19in 10%, but Deputy Prime Minister Golikova clarified that we are talking about 2% Vaccinations against coronavirus infection COVID-19 reliably protect against infection, said the head of ...
Murashko spoke about the interval of vaccinations after herd immunity
Vaccination against coronavirus after achieving herd immunity will have to be done once a year, Health Minister Mikhail Murashko said in an interview with RIA Novosti. “After achieving herd immunity in our country, it will be enough to vaccinate as planned once a year,” the head of the Ministry of Health said. How Vaccines and Herd Immunity Work: What Has Changed? Trends Earlier, Murashko said tha...
HSE introduces restrictions for unvaccinated and non-ill students
Adult students of the Higher School of Economics (HSE) who have not been ill with COVID-19 in the past six months and have not been vaccinated will be able to attend face-to-face classes only after a fresh PCR test. This is stated on the website of the capital's university. “Students from the category “students at risk” will be allowed to attend such classes only with a negative result of a PCR te...
Hotels in Adygea were banned from settling without vaccination against COVID or PCR test
In Adygea, against the backdrop of an increase in cases of COVID-19 , new restrictions are being introduced on checking into hotels. This is stated on the website of the government of the republic. “Requirements for confirmed immunity or the presence of a negative PCR test will also apply to tourists checking into hotel facilities in the region (with the exception of children under 16 years old),”...
The scientist linked the asymptomatic course of COVID with the characteristics of immunity
The asymptomatic course of COVID-19 is explained by the features of immunity that have not yet been clarified. About this, as reported by RIA Novosti, said Sergey Netesov, Doctor of Biological Sciences, Head of the Laboratory of Bionanotechnology, Microbiology and Virology at Novosibirsk State University (NSU), Corresponding Member of the Russian Academy of Sciences. “There are still not clearly e...
Experts point out the features of the delta strain of coronavirus
The likelihood of contracting a delta coronavirus strain is higher than the usual COVID-19 , Andrey Kondrakhin, a therapist and candidate of medical sciences, told RBC. According to him, the incubation period is two times lower for the new strain. “What the virus used to overcome in two weeks, it overcomes in one week, so there is a rapid increase in the development of the disease. But here it is ...
Titov suggested issuing QR codes after the first shot of the vaccine
The first injection is the most important, the business ombudsman believes. So, if you allow those who received the first dose of the vaccine to go to a cafe, then this will not bring serious threats, Business Ombudsman Boris Titov suggested issuing QR codes needed in Moscow to visit public catering establishments, even for those who have not completed the full course of vaccination. In addition, ...
Perm was among the leaders in visits to doctors before vaccination against Covid
In Perm, according to the results of June, the dynamics of visits to doctors before vaccination against coronavirus increased significantly. Compared to May 2021, in June the number of such questions to specialists increased by 76% and 7 times compared to January, the first full month when mass vaccination against coronavirus was launched in Russia. Perm took the second position in the rating amon...
Experts evaluate reports of COVID cases for the
third time It is possible, but rare, to contract coronavirus for the third time. According to experts, the number of people carrying COVID-19will not affect the severity of the new disease It is very unlikely to become infected with the coronavirus for the third time, and the number of infections transmitted cannot affect the severity of the disease, experts interviewed by RBC said. “It is unlikel...
Golikova called the number of fully vaccinated against COVID-19 Russians
46 million Russians were vaccinated with one component of the coronavirus vaccine, of which 39 million people received both components. This was stated by Deputy Prime Minister of Russia Tatyana Golikova, RIA Novosti reports. “Colleagues, 46 million were vaccinated with the first component and almost 39 million with the two components,” she said. The first deputy head of the Ministry of Health, Vi...
Experts explain the possible absence of antibodies after vaccination against COVID
Some people may not develop antibodies to the disease after being vaccinated against the coronavirus due to the characteristics of their body. This was reported by experts interviewed by RBC. How migrant workers are vaccinated against COVID-19 in Moscow. Photo report Photo gallery “Everyone’s body is very individual, so the immune system works very individually. Not everyone can be like soldiers. ...
Early weaning of beef calves in a dry summer - the experience of American ranchers
According to livestock experts at North Dakota State University, rainfall is one of the most important factors influencing management decisions in cattle grazing. Greg Henderson talks about how to manage pasture cattle in a dry summer in his article. “This year is no different than last year because much of North Dakota is experiencing severe dry weather. Drought conditions dictate their livestock...
Germany lifts two-week quarantine for arrivals from Russia
Russians will no longer have to comply with a mandatory two-week quarantine after arriving in Germany if they have a certificate of vaccination with any EU-approved vaccine against COVID-19 , a certificate of the presence of antibodies, or a negative PCR test result taken on the fifth day after arriving in the country. The fact that such rules will come into force on July 7 for Russians, as well a...
The Ministry of Industry and Trade announced the absence of plans to introduce QR codes in trade
The Ministry of Industry and Trade is not discussing the introduction of QR codes in trade in Moscow, by analogy with cafes and restaurants. This was stated by the deputy head of the department Viktor Evtukhov in an interview with the Izvestia newspaper. “It’s one thing to be restricted in restaurants, it’s completely different to trade. Coping with the flow of people who need to scan the code is ...
Experts evaluated the hypothesis of a mild course of COVID-19 in allergy sufferers
There are too few scientific studies in the world to evaluate the hypothesis of Rospotrebnadzor about the mild course of COVID-19 in allergy sufferers, allergist-immunologist Vladimir Bolibok told RBC. According to him, it is almost impossible to make an individual forecast. “There are many patients with allergic reactions, they get sick with COVID-19, some of them die. You have to be grafted. And...
Roszdravnadzor called the necessary pace of vaccination against COVID in the region
To prevent the spread of coronavirus in the Novosibirsk region, it is necessary to vaccinate at least 60% of the inhabitants of the region, which is about 1.8 million people. This was announced during a live broadcast of the NGS portal by the head of the territorial body of Roszdravnadzor Elena Khrustaleva. She noted that on average, one sick person can infect four people. If at least every second...
Doctors warn about the dangers of smoking after vaccination against COVID-19
Smoking and drinking alcohol in the first days after being vaccinated against coronavirus can potentially cause blood clots in the body. This was told by the director of the Khodanova immunocorrection center, general practitioner Lyudmila Lapa, TASS reports. According to her, when smoking, as well as when drinking alcohol, vasospasms and thickening of the blood occur. She believes that, as with in...
How to Prepare for the Flu Vaccination During a Pandemic. What is important to know
In the fall, influenza vaccination is traditionally carried out. But this year it will go hand in hand with large-scale vaccination against COVID-19.. How this can be organized, what manufacturers and doctors say - in the material of RBC When will the flu vaccination start? Every year, the Ministry of Health announces the start of a flu vaccination campaign by a separate order. Last year it began ...
Virologist - about what is really dangerous mutation "covid"
“The coronavirus is constantly mutating. The process of mutations goes in the direction of increasing infectivity - each next option is more effective than the previous one, ”says virologist Alexander Semenov Alexander Semenov, The third, apparently the most powerful, wave of the SARS-CoV-2 coronavirus pandemic was generated by its Indian strain - the “delta” variant, in WHO terminology. It has sp...

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