COVID-19 tests

Hornchurch, Essex

Coronavirus disease 2019 (COVID-19) is a respiratory tract infection caused by a new coronavirus – Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) - which was first recognised in China in December 2019.


Here at Best Health Clinics we can carry out two types of COVID 19 Tests. Both tests are sent to a  London based laboratory (UKAS registered) and are approved by Public Health England.


COVID-19 PCR test for flying & international travel

This is if you require a COVID-19 test to see if you are infected with the virus or not. Often required for flying abroad and includes a certificate to prove negative results.


We have two packages:

  • Results guaranteed within 24 hours

  • Results within 24-48 hours

COVID-19 antibody test

COVID-19 antibody test

This test is to show if you have previously had COVID-19 or your response to the COVID-19 vaccine and detects antibodies in your blood. It is not suitable for flying.


We have two packages:

  • Qualitative result  (antibodies detected/not detected)

  • Quantitative results which also gives the level of antibodies detected (suitable for post infection or COVID 19 vaccination)


Fitness to Travel Certificate

(fit to fly)



Results guaranteed within 24 hours:   £200 (by 9am the next day)

Results with 24-48 hours:                      £140

A number on countries and airlines now require passengers to prove evidence of a recent COVID-19 negative result prior to flying, with a certificate. At BHC we can provide COVID-19 RT- PCR tests via nasopharyngeal and throat swabs and results are given either within 24 or 48 hours. The test has a sensitivity of 98% and specificity of 100%. This test is very accurate at detecting SARS-CoV-2 and is currently accepted as border entry in all countries. Ideally the test should be taken three to five days before departure of the flight, but you should check the requirements of each individual airline. The test should be taken at the earliest time frame possible as results can get occasionally delayed and we cannot take responsibility for any travel disruption as a result of delayed results.


All results will include a copy of the lab report and COVID 19 negative fit to fly certificate for international travel signed by our clinical team.

Please note:

Please bring your passport to the appointment as proof of ID and passport number. The timing of receiving your results can vary between 24-48 hours depending on which time frame you choose. For the 24-48 hour results generally the majority of results come back within 48 hours however capacity at the lab and sample re-runs can mean the results may take slightly longer. We are not liable for any other costs should your results be delayed. 

Frequently asked questions :

What does the PCR swab involve?

The swab testing involves using a long swab to take a sample from the nose and throat. This sample is then sent to the lab to see any SARS-CoV-2 can be detected. The PCR test looks for the virus’s RNA and is very accurate.

How is the swab taken?

The swab is taken by one of our clinical team at Best Health Clinics, however you can purchase a swab to take by your self at home. In this case you will be provided with a kit, including a pre-paid postage envelope. Please note, with this method the turnaround time increase as the sample takes longer to reach the lab.

How do I book a test?

Please call reception on 01708 477 577 or email to book an appointment. Please bring photo-proof of ID along to your appointment to validate your certificate.

How soon should I be tested?

This depends on your airline and country of travel. We would recommend have the test done three to five days before departure. The turnaround time for the results is usually 72 hours (longer if you self-swab and post the sample), so please leave yourself plenty of time as occasionally results can get delayed. It is your responsibility to ensure you leave enough time to get tested and for the results to return.

How will I receive my results?

You will receive your results and COVID-19 negative certificate (fitness to fly) by email to provide the fastest possible turnaround times. The certificate is on our clinics letter headed paper. If your require a paper or stamped copy this can be arranged at no extra cost, but please note it may increase the turn-around time. or The lab is open seven days a week so turn-around times also include the weekend.

Does the price include a certificate?

A certificate as well as the copy of the lab results will be emailed to you. If you would like your passport number or additional information on the certificate please let us know in advance.

What if I develop symptoms of COVID-19 after a negative result?

As with all viral PCR tests, passengers with very low viral loads are less likely to be detected. A 'Not detected' results do not mean you are not infected with the SARS-CoV-2 virus. If you develop symptoms of COVID-19 after negative result, you should self- isolate as per the current NHS advice and have a new test performed 24-48 hours later. Airlines have the right to refuse travel to anyone they believe is not fit to fly so if staff suspect you have symptoms such as a fever or new persistent cough you may not be allowed to fly.

COVID-19 antibody test



Qualitative IgG/M:

This test tells you if antibodies have been detected and if you have been infected in the past. 

  • Home kit via finger prick      £65

  • In clinic via blood test          £100

Quantitative IgG/M: 

This tests tells you if antibodies have been detected after an infection or COVID vaccination and gives a value to your antibody response.

  • Home kit via finger prick      £85

  • In clinic via blood test)         £120

COVID-19 antibody test can detect if you have had an infection in the past or if you have produced antibodies in response to the COVID-19 vaccine. It should be performed 14 days or more following exposure or onset of symptoms or vaccination You must ensure all your symptoms have cleared up before you book the test.


With the home test a pack can be collected  from the clinic or  it can be posted. Full instructions  are included for you to be able to take a sample via a finger prick and a pre- paid envelope is supplied for you to post the sample  to the lab or you can return it to the clinic for our courtiers to collect. 


The blood test undertaken at our clinic and a sample is sent to the lab in London.


The results are available in one to two days time (please note if you are posting the sample the turnaround time will be delayed by another day). The test is approved by Public Health England and is very accurate.


What does the COVID-19 antibody result mean?

A positive result  means you have had COVID-19 in the past, although we cannot tell when. As this is a new virus it is not known if a positive results means you have immunity and you will be protected fully or partially from future infection, or how long the immunity will last. If you choose the quantitative test it will also tell you the level of your antibodies after infection or vaccination.


If you have a negative result this could mean you have not had the infection, had a mild infection or your body had not produced antibodies at the time of testing.


Who can have this test?

This test is suitable for anyone who want to find out if they could have been infected with the virus, either because they had symptoms or they are worried they may have had an asymptomatic infection. It can be used post COVID vaccination to see if you have produced a good antibody response to the vaccine.It can also be used by employers looking to bring their staff back to work and they want to see who has had the COVID-19 already.


How do I book the COVID-19 antibody blood test?

Please call reception on 01708 477 577 to book and appointment or to order a home kit or email us on