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Nucleic Acid Amplification Tests (NAAT) are the WHO recommended tests that are most commonly being used to test for coronavirus. This test relies on a technique called Reverse Transcription Polymerase Chain Reaction, or RT-PCR.
Samples of the mucous membrane are swabbed from the nasopharyngeal area and the oropharyngeal area.
In a nasopharyngeal area, a specimen is collected by sticking a swab into nostrils. This process might be slightly uncomfortable but is not painful. In the oropharyngeal area, a specimen is likewise collected by use of a Q-tip-like swab from the throat.
After the sample is safely collected, health professionals use PCR (Polymerase Chain Reaction) to copy and amplify the viral genetic code if present in the sample which makes it easier to detect the presence of the virus in the specimen. PCR typically involves denaturing the DNA material using heat to separate two pieces of single-stranded genetic RNA. Then, an enzyme called “Taq polymerase” synthesizes two new strands of RNA using original strands as templates. This results in duplication of original genetic material. This whole process repeats in a continuous cycle which then yields an enormous number of exact copies of the original genetic code. Computer software then determines when the number of copied DNA sequences surpass a threshold, indicating whether the coronavirus is present, and at what concentration.
It is a quick and non-invasive test. The kit is mobile and can be used at drive- throughs, airports, marketplaces, etc
The collected specimen needs to be taken to a lab for analyzing the data, and therefore the specimen could be vulnerable to varying conditions in transit, which adds a potential for error in test results.
COVID-19 infection could not be evenly distributed across all areas of the mucous membrane of the nasopharyngeal & oropharyngeal areas. The specimen could be swabbed from a spot that is not yet infected (although the other areas are infected), which could lead to the test result being negative when in fact the individual has an infection.
RT-PCR tests can’t indicate if a person had COVID-10 in the past, nor diagnose if the individual is susceptible to a future potential stronger wave of the virus. The test is purposed for detection of just a present infection.
The serology test looks for certain antibodies in your blood. These antibodies are produced by your body in response to viral infections like COVID-19. The serology test is not proposed to test the presence of the virus itself, but the immune response of your body against the virus.
First, a blood sample is collected through a finger prick. Health professionals then test the blood sample for the presence of two different kinds of antibodies to SARS-CoV-2: (1) IgM antibodies, which are developed in an early stage of infection and (2) IgG antibodies, which show up in the later stages of recovery.
The test is a very accurate marker of antibodies and thereby can suggest a COVID-19 infection. It has a very small margin of error.
The antibodies of COVID-19 infection could be caused by other unknown factors (not just by a COVID-19 infection), therefore it is not wise to use these tests alone for diagnosis of COVID-19. Furthermore, the specific IgM antibodies used in the serology test are produced in the body over a 4 week period. This long duration of antibody production implies that this test cannot be used to identify the COVID-19 patients in the initial stages of infection. Therefore, these tests are better suited to speculate if an individual had a COVID-19 infection or another viral exposure in the past.
Scientists are carrying out research to come up with all sorts of new testing techniques with the goal to increase accuracy of the testing technique and reduce the delay in final test results. At the moment though, the NAAT Test RT-PCR is used as an accepted standard.
In Heal Within™, our focus and relentless pursuit is to help our patients achieve these Three Primary Objectives.
To learn the details of the what & why of these end-objectives, and understand why it is crucial that you establish this in your mind first prior to starting any healthcare treatment or prevention program, please go to Lesson 1 – First, Establish Your End-Objectives (if you not already done so).
We use an advanced Integrated & Holistic Treatment approach and have consistently helped numerous patients with all forms of diseases achieve these Three Primary Objectives. Moreover there has not been a single reported case of COVID-19 from any of our patients; our programs have helped all our patients optimise their immunity and protect themselves from this viral infection.
If you had COVID-19 & already treated and now seek to prevent a recurrence, or if you have no infection at the moment but want to optimise your immunity so to prevent being infected in the future, then just send us an enquiry or come visit our centre to see how we can help.
We have both: a comprehensive service in-clinic program, and a DIY-at-home program (i.e. do it yourself at home program). To learn more about our programs please go to the program-details web-page, the link to which is below.
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Dr Lee Cheng Lok is the founder & medical director in Heal Within™. This lesson series is a part of his mission to educate & heal patients with chronic diseases, and prevent others from experiencing chronic disease by using an Integrated & Holistic approach.
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Normalise & Optimise your immunity against COVID-19 by our Integrated & Holistic Treatment
For those seeking prevention against COVID-19
For those already treated & seeking recurrence prevention
Heal Within® is a chronic disease treatment centre based on an Integrated & Holistic medicine methodology..
Our primary purpose of existence is three-fold: (1) To help patients suffering from chronic disease conditions achieve holistic healing, recurrence prevention and long-term well-being. (2) To educate people into the principles & healing effects of Integrated & Holistic Medicine, and induce in them the confidence to use it when need arise. (3) To educate & influence medical professionals to adopt & use Integrated & Holistic Medicine as a true disease treatment standard.
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