Why are vaccinated people still testing positive for Covid-19.

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With COVID-19 bullets reaching billions of people, there are growing reports of people infected with coronavirus despite being vaccinated KNOWN AS COVID-19 VACCINE BREAKTHROUGH CASE. Just as a natural infection does not guarantee protection against re-infection, a vaccine also does not provide effective protection. However, those who are immune, whether through immunizations or infections, are at risk of those who do not. The so-called successes between the immune system remind us that once the epidemic is rampant in the world, it will remain a threat to everyone.

  1. WHAT’S THE IMPORTANCE OF COVID VACCINATION?
    First of all, it is important to remember that a good test shows infection with SARS-CoV-2, a coronavirus that can cause COVID-19. The disease has not been detected until the infection causes symptoms such as fever and cough; a large number of those infected have symptoms. Although the vaccine provides strong immunity to the serious infections caused by SARS-CoV-2, there is no absolute protection against infection, which means that many vaccinated people are still at risk of contracting the virus and transmitting it to other people. As SARS-CoV-2 circulates in the community, the risk of infection increases. In some cases, these infections will pass through the immune system caused by the vaccine caused by COVID symptoms. The disease can be life-threatening but this happens In rare cases.
    Furthermore, is the so-called long-term COVID – chronic fatigue risk, shortness of breath, and other symptoms that appear in about 1 in 10 COVID survivors; it is unclear to what extent the vaccine prevents these ongoing problems.
  2. WHY DO BREAKTHROUGH COVID CASES OCCUR?
    It boils for three main reasons:

Viruses: Infectious viruses continue to evolve into a variety of strains that are more contagious and have the potential to evade the immunity offered by a previous vaccine or infection with SARS-CoV-2. These “most suitable” strains have spread around the world, making SARS-CoV-2 even harder to stop.
Vaccines: That most of the approved COVID vaccines are used to protect against serious diseases caused by a variety of common diseases as Current data show , and other drugs, especially those called the mRNA vaccine developed by Moderna Inc., and Pfizer Inc. and its partner BioNTech SE – provide stronger protection than others. Studies show that for the highest immunity, a person should receive full immunizations, usually two injections at intervals ranging from 2 to 12 weeks, depending on the product. And it takes time for the vaccine to work its way – about two weeks from the last dose, although the protection of some vaccines may increase gradually over months. It is also possible that the strength of the vaccine has been affected by issues of manufacturing and storage and improper handling, although reports of what is happening are not uncommon.
Personal answer: Even the most effective vaccine is actually not immune. Some people may not get a strong response to the vaccine, which means they fail to provide adequate levels of antibodies that block viruses and T cells that hunt and kill virus-infected cells. Of particular concern are the elderly and the immune system, which are those whose immune system is weakened because, for example, they have a disease that affects them like AIDS or take immunizations after a stroke transplant or treat cancer. Even for those with good immunity, immunization may decrease over time, although researchers still do not know how quickly this happens.

3. HOW COMMON ARE BREAKTHROUGH CASES;
It is difficult to follow, especially since routine screening tests have declined in many countries where vaccinations are widespread. In the United States, 10,262 successful SARS-CoV-2 infections were reported to Centers for Disease Control and Prevention in the four months to April 2021, when nearly 133 million Americans had been vaccinated. This adds up to in 10,000 less than 1. Certainly more of them have occurred than reported, especially for people with no symptoms. A study of the Rhode Island prison system, where inmates and guards are tested weekly, found that 27 out of 2,380 people received a successful infection vaccine between March and May 2021.

4. HOW EFFECTIVE IS THE VACCINE AT PROTECTING AGAINST CORONAVIRUS?

In clinical trials of current COVID vaccines, efficacy rates ranged from 50% to 95%. These rates mean that in the experimental group of volunteers who received the vaccine, COVID cases were 50 to 95% lower than in the group of volunteers who received placebo. On an individual basis, the effectiveness rate of, say, 80%, means that a person’s risk of developing the disease is about 20% of that of a person who does not have the same immunity. However, the effectiveness of the vaccine in the real world, known as efficacy, does not have to be consistent with its effectiveness in research under controlled conditions. And efficacy and effectiveness can vary with the same vaccines depending on the population, duration and regimens used; rates are affected by many factors, including the range of existing SARS-CoV-2 and adherence to social and public health measures that prevent viral transmission.

5. HOW LIKELY IS IT THAT A VACCINATED PERSON CAN SPREAD CORONAVIRUS?
There is evidence that COVID vaccines can reduce the chances that a person with a successful infection will pass it on. A study of health care workers in Scotland in late 2020 and early 2021 found that registered cases of COVID among family members of vaccinated healthcare workers were 30% lower than their non-vaccinated groups. A study in England conducted almost simultaneously found that the probability of home delivery was around 40-50% lower in the households of vaccinated patients compared to non-vaccinated patients. Subsequent emergence of a wide range of approvals that can be adopted may negate these results. COVID vaccines have been shown to reduce the duration and level of viral infections, or viral load, in the upper respiratory tract of vaccinated individuals, thus reducing their chances of transmitting the virus to others.

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