Let's see how to know if you have had COVID, so that you have the peace of mind of finding out if you have had the coronavirus in your body and you have not realized it. And despite the fact that COVID 19 can cause severe symptoms In many people, many others go through it without practically realizing it - thinking that it is a simple cold - or without noticing a single symptom, the so-called asymptomatic. Therefore, there are many people who would like to know if they have had COVID at some point and do not know it. Below we explain how to know if you have had COVID 19.
How do I know if I have had the coronavirus
If he antigen test wave PCR test have tested negative, there is only one way to know if the coronavirus has passed and that is to perform a antibody test analysis.
An antibody test does not directly detect the virus like a PCR test, but rather confirms whether our body has an immune response against the pathogen. For this it will be necessary to carry out a simple blood test (for which it will not be necessary to fast) that will tell us if we have had SARS-CoV-2 in our body and if our immune system has generated antibodies to combat it.
Of course, if said blood test reveals antibodies in our body, it does not mean that we currently have the virus, but rather it will reveal if our body has completed a immune response when we have been exposed to it, whether with symptoms or not.
The SARS-CoV-2 antibodies They can be detected in the blood from a week after recovery if symptoms are shown. In the case of SARS-CoV-2, only two types of immunoglobulins are of interest: lgM and the lgG. The lgM are a recent infection marker which is detected between days 4 and 7 of infection and increases until day 14. From here they begin to decrease. LGG, for its part, are detected from day 8 after infection and increase until after 3 weeks.
In short, if the blood test gives negative in lgG and lgM, It means that COVID has not passed. Of course, between 2% and 5% cases, antibodies are not generated, eliminating the virus through a cellular response.
If you want to do a blood test to find out if you have had COVID, you can go to your regular health center and make an appointment for the extraction.
Now you know how to know if you have passed the COVID if you suspect that you may have been infected but have not had symptoms; or they have been very mild.
