The presence of antibodies indicates that you've been infected with a virus. This is useful information for your doctor and healthcare professionals, who are better able to understand your current health status.
Antibodies can be detected in the blood. However, they are not always found there. Antibodies may also be found in saliva and mucous membranes, like those of the respiratory tract.
Antibodies are proteins that are produced by the body's immune system in response to an infection. They travel through your bloodstream and help fight off infections.
Your body makes different antibodies against different types of viruses and bacteria. These are called specific antibodies because they're only made in response to one particular virus or bacterium, while the remaining antibodies will be "nonspecific" and can recognize many pathogens. For example, you may have been exposed to a cold virus last week but your body already had the necessary antibodies to fight it off; those were specific because they were produced in response to that particular strain of cold virus.
Antibodies are used by doctors as markers for diagnosis, so when an antibody is present in someone's blood sample, it means that their immune system has detected an infection somewhere in their body (whether they know it or not).
The test used to detect coronavirus antibodies is called a serology test. It measures the level of antibodies that are present in your blood. Antibodies are proteins made by the body's immune system in response to an infection.
Serology testing can also be used to measure the amount of virus present in the body, although this is not done with coronavirus tests because it takes too long and costs too much money.
Antibodies are found throughout the bloodstream and lymphatic system, but it takes time for them to develop after exposure to germs. When you get sick with a respiratory infection or other disease that causes coughing or sneezing (called a communicable disease), antibodies can be detected in your blood within six weeks of exposure.
It takes several days for the body to develop antibodies. This is why it is not possible to measure the level of antibody in your blood during an initial infection. When antibodies are detected, they will be present and detectable in your blood only after this time has elapsed.
Antibodies may be detected for months or years after an infection has cleared up.
Once you have had an infection, you continue to make the antibody, so they may be detected in the blood for months or years after an infection. In contrast, viral infections generally do not cause long-lasting immunity. This can lead to recurrent symptoms of illness and frequent reinfections.
It's important to note that antibodies made against one virus may make it harder for your body to detect other viruses, some of which may cause disease. For example, someone who has been exposed to the polio virus will be able to make antibodies against that virus and fight off an infection from it. However, if they are then exposed to West Nile Virus or Eastern Equine Encephalitis (EEE), their immune system will be less effective at fighting these infections because of the antibodies made for polio.
Testing positive for antibodies indicates that you have had a previous exposure to the virus. A negative test result means that you have not had an infection from the Covid-19 virus, so you are immune to it. However, it is possible to be exposed to the virus without developing antibodies or experiencing any symptoms of illness.
You can test your own blood at home using a kit available online or in drug stores, but this course of action should only be taken if absolutely necessary because results may take longer than those obtained by a professional lab and may not always be accurate or reliable.
Testing at home is best used as a way of learning whether someone has been exposed and needs further testing done by professionals; however, they should still seek out medical advice as soon as possible after having unprotected sex with someone who could possibly have an STI like Covid-19 (we’ll explain how later).
Serology testing allows us to detect whether you were previously exposed to Covid-19 and are now immune. Antibodies are proteins produced by the body's immune system in response to an infection or foreign substance. They help fight off viruses, bacteria and other harmful particles that enter our bodies.
When a person has been infected with a virus like Covid-19, their bodies respond by producing antibodies against it. These antibodies remain in the blood even after the virus has been killed off or removed from their body through treatment with antiviral drugs like Zolovaxine (Zovirax).
Serological testing is performed by taking a sample of your blood and then testing it for specific antibodies that would indicate prior exposure to Covid-19
By recognizing the symptoms of Covid-19, we can take steps to protect ourselves from becoming sick. It's also important to know how we can test for this virus so that if someone in our family has been exposed, we can get them treatment as soon as possible.