Understanding the Pros and Cons of Different Covid-19 Tests

As we are now heading towards the start of year two of the global Covid-19 pandemic, one thing
that is constantly spoken of is testing. Most people have had some form of testing. With so many different tests out there that all claim to have some efficiency at determining whether people are infected with coronavirus or not, you may not actually know much about what makes them all different.

In this blog post, we want to clear up some of the mystery.

There are two main kinds of Covid-19 tests that are actively used, there are two diagnostic tests, antigen, and molecular tests, and these are designed to identify active infections.

Let’s look at these in closer detail.

Molecular Tests

Molecular tests, such as the Polymerase Chain Reaction Test (PCR), involve either a swab taken from the throat or nasal passage or by testing saliva or other bodily fluids. What is the purpose of these tests? They look for any evidence of the genetic material of coronavirus in the body.

While it is true that have a low rate of what are known as false-positive results, that is, when the test says you have coronavirus, but you don’t, they also have a higher rate of false-negative results, which states that the test says you don’t have coronavirus when in reality you do.

The best option for PCR tests is the deep nasal swap that takes material from the very back of your nose, close to your throat. This is because there is likely to be a higher volume of viral material at that area of your body than other parts.

PCR Tests are incredibly sensitive, which enables them to detect with great accuracy that you have coronavirus. One of the issues with general PCR tests, though, is that they can be very uncomfortable, and the results can often take anything from a few hours or even days to come through, depending where you get your test administered.

Antigen Tests

Another form of diagnostic testing, antigen tests are also administered using throat or nasal swabs and these are designed to determine if there are any proteins, known as antigens, present in your body from coronavirus. The interesting thing that you may not have realised is that if you have ever had a pregnancy test, you are familiar with antigen tests.

The antigen test, in general, is normally a lot less expensive than others, and takes the least amount of time to deliver results. One of the major problems with them, however, is that although they are normally very accurate tests for positive virus results, you may need a molecular test in order to identify if a person is negative because antigen tests return a higher rate of false-negative results.

At Pure Testing, if you are interested in having either the PCR Test or Antigen Test, you can book either with them. They are administered very quickly and return quicker results than other places.

"Please note, it is you responsibility to check the latest travel guidance for your country of travel. The information below may not be up to date"

Understanding the Pros and Cons of Different Covid-19 Tests

Results delivered at 6pm daily. The PCR Swab Test is the most accurate test available.

See why NHS tests are not suitable for fit to fly

What is the Antigen Test?

Get guaranteed results for your Covid-19 Antigen Test at 10pm.

The Antigen Test is used to determine whether you have the Covid-19 virus. This test works by searching for the pieces of the virus that your immune system recognises, the antigens.

It is especially helpful for screening acute, asymptomatic, and mild patients for identifying the Covid-19 infection.

We will email you the test result certificate by 10pm the same day you had the test.

NB. You are not allowed to travel to the majority of destinations on the basis of your Covid-19 Antigen Test. If you are looking to travel please book your PCR Test and Fit to Fly Certificate.

Our COVID-19 Testing Process

Getting tested at one our centres is easy and simple

Book a corporate test day

Complete the form below and we will contact you to confirm a suitable testing day within 24 hours.

Testing in your office

We will set up in your office and test up to 750 team members per day.

Testing outside your office

Corona Test Centre can also come to your construction site, aged care home or any other business where you don’t have space for us and test from our mobile testing van.

Book Your Test Now With Our Experienced Team

BOOK YOUR COVID-19 Antigen Test Below


Simon Shackles

Easy to book and got my results the next day

Louise Campbell

Visited the Birmingham clinic. Was in and out in 10 minutes

Louise Campbell

Jason Singh

Booked online and went to the centre the next day for my appointment. Simple process.

Jason Singh