antibody test kit manufacturer
Based on the results of the first round of testing, the research team estimates that approximately 4.1% of the county’s adult population has an antibody to the virus. (Photo/Kit Karzen)

Introductory Guide to Antibody Tests

Antigen, RT-PCR, and Antibody Tests for COVID-19: 

Pros and Cons of Antibody Test:

You can find out if you have COVID-19 with a number of different tests. You can find the SARS-CoV-2 virus, which causes COVID-19 in different ways, with these tests. Antigen tests look for molecules that are on the virus’s surface. RT-PCR checks to see if the virus’s genetic material is present. Antibody tests check to see if the body is making antibodies to fight off the virus. We’ll talk about what each test does and what its pros and cons are. This information will help you figure out which test you might do best on. Our company is a well-known antibody test kit manufacturer and antigen test kit suppliers in town. Visit our website for more information. 

Rapid Antigen Test:

An antigen is a piece of something foreign that is on the outside of a virus. When we expose our bodies to viruses like coronavirus, they turn on their defenses to go after the virus’s antigens. Our immune system makes antibodies to attack antigens. In this case, the antibodies are already on the rapid antigen test cassette, and when the antigens in our sample come into contact with the antibodies, the cassette changes color.

Rapid Antigen Test is a rapid point-of-care test for testing for a number of different infectious diseases. The Rapid Antigen Test is a point-of-care test for testing for a number of different infectious diseases. It is able to identify the presence of a number of pathogens including Hepatitis B, hepatitis C, herpes simplex, syphilis, gonorrhea, and chlamydia. Rapid Antigen Test is able to identify the presence of a number of pathogens including Hepatitis B, hepatitis C, herpes simplex, syphilis, gonorrhea, and chlamydia.

Antigen tests are best for people with symptoms in the first few days. Antigen tests are also helpful because we don’t need to do them in a lab and can do them anywhere. Screening is a great way to use antigen tests. Antigen tests are quick tests that give results in 10–30 minutes, depending on the device you’re using to do the test. Most antigen tests take 15 minutes to get results. One problem with antigen tests is that they don’t work as well for people who don’t have any symptoms. If a person gets a positive result, we use an RT-PCR test to confirm it.

Molecular RT-PCR Test:

The Molecular RT-PCR Test is a new method of genetic testing. This test uses PCR to detect and identify the presence of the herpes simplex virus in saliva, urine, or cervical swabs. This new test has been developed to help clinicians diagnose and confirm diagnoses of oral herpes, genital herpes, and neonatal herpes. This procedure is widely used to measure the level of gene expression in cells, tissues, or other biological specimens. Molecular RT-PCR Test, or as it’s often called, PCR Test, is a test used to detect DNA from a specific source

We also know these tests as nucleic acid tests, RT-PCR tests, and molecular tests. It checks to see if the virus that causes COVID-19 has the DNA that causes it. We can also call Nucleic acids, like DNA and RNA, genetic material. The polymerase chain reaction is what PCR is short for. An enzyme called polymerase can copy genetic material. Why do we need PCR?

Genetic Material:

In the lab, you can take out genetic material from an animal, plant, or virus, but only a small amount at a time. We use PCR to make many copies of that genetic material so that it can be studied. The RT in RT-PCR stands for the word “reverse transcriptase.” Reverse transcriptase looks at a piece of RNA and makes a copy of it in DNA. An RNA virus is usually the cause of COVID-19. RT-PCR turns the virus’s RNA into DNA, which then multiplies into many. 

If we do PCR and there is a lot of DNA, we can then check to see if the virus RNA was there. Later, you can put this DNA into a sequence by looking at each base pair of the nucleic acid and comparing it to other virus sequences. This is how we know when the virus has changed and when new versions of it have shown up.

This test is good because we can do it at any time, even if the person isn’t feeling sick. The fact that you have to do it in a lab with special tools is a con. Another problem is that the polymerase needs time to make many copies of DNA. Most of the time, we need to take samples at a clinic and send them to a lab. 

Lab-Based Anti-Body Tests:

Humans have an adaptive immune system. When our immune systems sense a threat, our bodies make antibodies to fight it. If a person makes antibodies against a virus, it means they have been exposed to that virus. The goal of an antibody test is to find out if your body is making antibodies. After being infected, it takes the body 1-2 weeks to make antibodies. So if you were just infected, you might get a false-negative result from an antibody test. If the person being tested just got a vaccine, the antibody test may also come back positive. In response to the vaccine, the body makes antibodies (this is how vaccines work). Most of the time, only researchers and people who look into public health do antibody tests. It is a great way to find out where a virus was in a population in the past. But it’s not a good way to figure out what’s wrong.

Pros of Rapid Antibody Test:

  • Get results in 15 minutes
  • Can be done at home or anywhere else
  • Can be used to diagnose COVID-19

Cons of Rapid Antigen Test:

Testing with no symptoms is less accurate than testing in the first 5 days of symptoms.

RT-PCR Test:

  • Even if the person has no symptoms, it is still correct.
  • You can use it to find out about COVID-19 Problems with the RT-PCR Test
  • We cannot do it at home since it requires a lab.
  • Usually takes 24-72 hours, but some labs take 1-3 days.

Pros of Antibody Tests in the Lab:

  • Able to find out who had COVID-19 before

Cons of Antibody Tests in the Lab:

  • Requires a lab. You can’t do it at home
  • Usually takes 24-72 hours, but some labs take 1-3 days.
  • We cannot use it to find out what COVID-19 is.
  • done three to four weeks after getting sick
  • Depending on how we do the test, vaccinations may cause a false positive.


There are several different kinds of COVID-19 tests. You can find the COVID-19 virus in different ways by each test. Antigen tests use antibodies to detect the virus antigen. Antibodies can find and attack antigens, which are molecules on the protein coat of a virus. We usually need to copy the genetic material many times in a molecular test or RT-PCR to see if it is there. The antibody test looks for antibodies that are specific to the virus and the human immune system makes them itself. You now know what these tests are and which one might be best for you.