Health

Curious To Know If You’ve Been Exposed To Coronavirus? The Sero-Survey Lets You Find Out

If the sero test indicates the presence of antibodies, should you be freaking out? Before you do, here’s all you need to know about how a sero-survey works.

While the thought of having been exposed to the Coronavirus, is certainly a scary one, it is not far away! If you’re curious to know, there is, in fact, a way. The WHO recently highlighted, in a startling find that 40% of Coronavirus cases are in fact asymptomatic! This would mean that the people belonging to this figure could still transmit the infection while having no clue they were even carriers of the virus! If you want to know if you belong to this asymptomatic population, there is now an answer to your prayers. Sero-survey! If your sero test indicates the presence of antibodies (we’ll explain what this means), should you be freaking out? Before you do, here’s all you need to know about how sero-survey works and what it indicates.

What is a sero-survey?

When a virus invades the body, the body prepares its defence mechanism to fight the infection. These soldiers of the human body are the ‘antibodies’ and the situation is synonymous to a battle. Every virus that enters the body, stimulates the production of specific antibodies. These in turn recognize the virus and eliminate it from the body. Once the virus has been eliminated and the patient is deemed ‘free’ of infection, and the antibodies remain in the blood for a specific period of time.

A sero-survey involves the testing of blood serum of a group of individuals. The goal is to quantitate the number of antibodies present in the blood serum making it the gold standard of measuring the population’s immunity against the infection.

The presence of the specific antibody is considered as a sign of exposure to Covid-19 infection. An antibody test and a Covid19 test are very different from one another. Apart from differing in the way the test is conducted, they also go on to indicate two very different aspects.

Antibody test different from Covid-19 test

A nose swab is examined in a Covid-19 test, while the blood is sampled in an antibody test. What if the results are positive? When a Covid-19 test examining nasal swabs, turns out to be positive, this indicates the person is suffering from the infection at that present time.

When an antibody test, which uses the person’s blood to evaluate the presence of these markers, turns out to be positive, it means the person has at some point of time been exposed to the Covid-19 virus. Don’t think, that the presence of antibodies means you will be immune to the virus for life! The presence of antibodies is also no guarantee that you will not be re-infected with the virus, like experts have pointed out.

“COVID-19 is so new that we still don’t know the correlation between having antibodies and immunity,” Jose Lima, M.D., director of the UAB Immunology Lab said. Even if a patient turns out to have antibodies against the SARS-CoV-2 virus, we can’t say they’re even partially protected or if they’re going to have transient immunity. At this point, we can only say that whoever tested positive was infected with the SARS virus. Other than that, I don’t think we can infer much at this point.”

Earlier last week, the Mumbai Civic body announced it would be conducting a sero-survey, panning three wards of the metropolis.

Mumbai’s sero-survey

The sero-survey in Mumbai will be conducted in the age group above 12 years. A total of 10,000 blood samples will be collected. These samples will be randomly collected from both slum and non-slum areas in M- West, F North and R Northwards. The blood samples will be sent to the Kasturba Molecular Diagnostics lab and Translational Health Science and Technology Institute, Faridabad.


   

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Health

Curious To Know If You’ve Been Exposed To Coronavirus? The Sero-Survey Lets You Find Out

If the sero test indicates the presence of antibodies, should you be freaking out? Before you do, here’s all you need to know about how a sero-survey works.

While the thought of having been exposed to the Coronavirus, is certainly a scary one, it is not far away! If you’re curious to know, there is, in fact, a way. The WHO recently highlighted, in a startling find that 40% of Coronavirus cases are in fact asymptomatic! This would mean that the people belonging to this figure could still transmit the infection while having no clue they were even carriers of the virus! If you want to know if you belong to this asymptomatic population, there is now an answer to your prayers. Sero-survey! If your sero test indicates the presence of antibodies (we’ll explain what this means), should you be freaking out? Before you do, here’s all you need to know about how sero-survey works and what it indicates.

What is a sero-survey?

When a virus invades the body, the body prepares its defence mechanism to fight the infection. These soldiers of the human body are the ‘antibodies’ and the situation is synonymous to a battle. Every virus that enters the body, stimulates the production of specific antibodies. These in turn recognize the virus and eliminate it from the body. Once the virus has been eliminated and the patient is deemed ‘free’ of infection, and the antibodies remain in the blood for a specific period of time.

A sero-survey involves the testing of blood serum of a group of individuals. The goal is to quantitate the number of antibodies present in the blood serum making it the gold standard of measuring the population’s immunity against the infection.

The presence of the specific antibody is considered as a sign of exposure to Covid-19 infection. An antibody test and a Covid19 test are very different from one another. Apart from differing in the way the test is conducted, they also go on to indicate two very different aspects.

Antibody test different from Covid-19 test

A nose swab is examined in a Covid-19 test, while the blood is sampled in an antibody test. What if the results are positive? When a Covid-19 test examining nasal swabs, turns out to be positive, this indicates the person is suffering from the infection at that present time.

When an antibody test, which uses the person’s blood to evaluate the presence of these markers, turns out to be positive, it means the person has at some point of time been exposed to the Covid-19 virus. Don’t think, that the presence of antibodies means you will be immune to the virus for life! The presence of antibodies is also no guarantee that you will not be re-infected with the virus, like experts have pointed out.

“COVID-19 is so new that we still don’t know the correlation between having antibodies and immunity,” Jose Lima, M.D., director of the UAB Immunology Lab said. Even if a patient turns out to have antibodies against the SARS-CoV-2 virus, we can’t say they’re even partially protected or if they’re going to have transient immunity. At this point, we can only say that whoever tested positive was infected with the SARS virus. Other than that, I don’t think we can infer much at this point.”

Earlier last week, the Mumbai Civic body announced it would be conducting a sero-survey, panning three wards of the metropolis.

Mumbai’s sero-survey

The sero-survey in Mumbai will be conducted in the age group above 12 years. A total of 10,000 blood samples will be collected. These samples will be randomly collected from both slum and non-slum areas in M- West, F North and R Northwards. The blood samples will be sent to the Kasturba Molecular Diagnostics lab and Translational Health Science and Technology Institute, Faridabad.


   

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Health

Curious To Know If You’ve Been Exposed To Coronavirus? The Sero-Survey Lets You Find Out

If the sero test indicates the presence of antibodies, should you be freaking out? Before you do, here’s all you need to know about how a sero-survey works.

While the thought of having been exposed to the Coronavirus, is certainly a scary one, it is not far away! If you’re curious to know, there is, in fact, a way. The WHO recently highlighted, in a startling find that 40% of Coronavirus cases are in fact asymptomatic! This would mean that the people belonging to this figure could still transmit the infection while having no clue they were even carriers of the virus! If you want to know if you belong to this asymptomatic population, there is now an answer to your prayers. Sero-survey! If your sero test indicates the presence of antibodies (we’ll explain what this means), should you be freaking out? Before you do, here’s all you need to know about how sero-survey works and what it indicates.

What is a sero-survey?

When a virus invades the body, the body prepares its defence mechanism to fight the infection. These soldiers of the human body are the ‘antibodies’ and the situation is synonymous to a battle. Every virus that enters the body, stimulates the production of specific antibodies. These in turn recognize the virus and eliminate it from the body. Once the virus has been eliminated and the patient is deemed ‘free’ of infection, and the antibodies remain in the blood for a specific period of time.

A sero-survey involves the testing of blood serum of a group of individuals. The goal is to quantitate the number of antibodies present in the blood serum making it the gold standard of measuring the population’s immunity against the infection.

The presence of the specific antibody is considered as a sign of exposure to Covid-19 infection. An antibody test and a Covid19 test are very different from one another. Apart from differing in the way the test is conducted, they also go on to indicate two very different aspects.

Antibody test different from Covid-19 test

A nose swab is examined in a Covid-19 test, while the blood is sampled in an antibody test. What if the results are positive? When a Covid-19 test examining nasal swabs, turns out to be positive, this indicates the person is suffering from the infection at that present time.

When an antibody test, which uses the person’s blood to evaluate the presence of these markers, turns out to be positive, it means the person has at some point of time been exposed to the Covid-19 virus. Don’t think, that the presence of antibodies means you will be immune to the virus for life! The presence of antibodies is also no guarantee that you will not be re-infected with the virus, like experts have pointed out.

“COVID-19 is so new that we still don’t know the correlation between having antibodies and immunity,” Jose Lima, M.D., director of the UAB Immunology Lab said. Even if a patient turns out to have antibodies against the SARS-CoV-2 virus, we can’t say they’re even partially protected or if they’re going to have transient immunity. At this point, we can only say that whoever tested positive was infected with the SARS virus. Other than that, I don’t think we can infer much at this point.”

Earlier last week, the Mumbai Civic body announced it would be conducting a sero-survey, panning three wards of the metropolis.

Mumbai’s sero-survey

The sero-survey in Mumbai will be conducted in the age group above 12 years. A total of 10,000 blood samples will be collected. These samples will be randomly collected from both slum and non-slum areas in M- West, F North and R Northwards. The blood samples will be sent to the Kasturba Molecular Diagnostics lab and Translational Health Science and Technology Institute, Faridabad.


   

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