Coronavirus outbreak lasts more than 6 months. People all over the world pass special testing to confirm the disease or contradict the virus in their organisms. Today, it is possible to set up three main types of screening that are used by healthcare specialists around the globe. How do they test for coronavirus? Find the answers, conclusions and other helpful information in our article below.
How You Can Test for Coronavirus – All About the Nowadays Tests
The most common type of coronavirus screening is the PCR blood test. It requires some biological patient’s material to provide an accurate result. Two other tests are suitable for coronavirus confirmation when the disease is in the active phase or the individual has already gone through all the symptoms and obtained immunity against COVID-19:
- Saliva testing detects active infection only. This type of screening is available for patients with visible signs of coronavirus. If the disease is in a passive condition, saliva test results can be negative when it comes to COVID-19 screening.
- Antibody blood test checks the presence of antibodies against COVID-19. If the patient came down with the coronavirus disease and managed to go through it, the immune system would form special proteins to defend the organism against this virus.
It means that the most accurate type of coronavirus testing is Polymerase Chain Reaction (PCR) screening. According to the WHO recommendations, it should be handled to detect the COVID-19 infection in the organism. Let’s take a closer look at each type of test to see the difference and their key peculiarities.
Swab Test (PCR) – What Is It?
This type of screening is used both as a preventive measure to confirm or disprove the infection and as the main test in case of throat symptoms of coronavirus together with other visible signs of COVID-19. Doctors take nasal secretions or in other words – nasal swab. This is the main biological material to provide accurate positive or negative results.
How Does It Work?
If the individual is really infected, the PCR test will show the positive result based on the genetic material examination. If the COVID-19 is confirmed, healthcare specialists start efficient coronavirus infection treatment. Swab test results are ready in several days and their accuracy depends on the infection phase. That is why it is recommended to repeat screening again in 3-5 days for the exact results.
Blood Test (Antibody) – What Is It?
This test aims to check the availability of antibodies in the human bloodstream. If the patient successfully did away with coronavirus, special particles (proteins) are presented in the blood. It means that the individual’s immune system is ready to defend the organism against COVID-19. The blood test to detect antibodies takes place in 1-2 weeks after the patient has been infected (after the first symptoms or signs of pneumonia at coronavirus have been noticed). Sometimes the human body fights against infection not so toughly, and the organism begins to produce antibodies in 3-4 weeks after infection contamination.
How Does It Work?
It is worth noting that the antibody screening is a rather accurate testing. All the results are ready in a couple of dates and demonstrate the presence of both infection and antibodies. This blood test is an efficient way to determine asymptomatic patients too. This way people can get accurate information on their immunity against COVID-19 because sometimes an organism cannot produce antibodies right after the first infection contamination.
Saliva Test – What Is It?
This test is similar to swab screening. Instead of the nasal swab, healthcare specialists take saliva for examination. It is worth noting that only the active phase of COVID-19 is seen in the saliva testing results. Both saliva screening and PCR testing have the same protocols.
How Does It Work?
Some private clinics prefer to do this testing instead of swab screening for home-based administration. Nevertheless, this technique requires high-level protective measures because healthcare specialists come into close contact with potentially infected patients. The accurate saliva results are ready in several days. Some express tests provide positive or negative outcomes in 1-2 hours. But these results obtain a lower accuracy level.
This article aims to provide readers with the true answer to the question: “Is there a blood test to see if someone has coronavirus?”. You can pass any of the three above-mentioned screening variants to know your results. Take into account all the described peculiarities. The Russian Supercomputer center is going to provide only actual and reliable data on the coronavirus latest news.