COVID-19 Tests – Swab, Saliva, Serum, or Stool?

Dr Linda Calabresi

writer

Dr Linda Calabresi

GP; Medical Editor, Healthed

Dr Linda Calabresi

This week’s expert:
Dr Michael Wehrhahn, Clinical Microbiologist and Infectious Diseases Physician at Douglass Hanly Moir Pathology 

Drawn from Dr David Lim’s interview with Dr Michael Wehrhahn on the Healthed Podcast, ‘Going Viral’.

• Symptomatic patients who test negative to SARS-CoV-2 after a nasopharyngeal PCR test can have a high level of confidence in that negative result. There is no need to repeat the COVID-19 testing in the vast majority of cases.

PASSWORD RESET

Forgot your password or password not working? Please enter your email address. You will receive an email with the link to set a new password.

Icon 2

NEXT LIVE Webcast

:
Days
:
Hours
:
Minutes
Seconds
Dr Gabby Mahoney

Dr Gabby Mahoney

Allergen Introduction – Practical Tips for GPs

Prof Brendon Yee, A/Prof Ralph Audehm

Prof Brendon Yee, A/Prof Ralph Audehm

Obstructive Sleep Apnoea

Join us for the next free webcast for GPs and healthcare professionals

High quality lectures delivered by leading independent experts

Share this

Share this

Dr Linda Calabresi

writer

Dr Linda Calabresi

GP; Medical Editor, Healthed

Test your knowledge

Recent articles

Latest GP poll

The government told the public that the average GP is earning $280k per year. Do you think this figure is:

Very overestimated

0%

Moderately/slightly overestimated

0%

Quite accurate

0%

Moderately/slightly underestimated

0%

Very underestimated

0%

Find your area of interest

Once you confirm you’ve read this article you can complete a Patient Case Review to earn 0.5 hours CPD in the Reviewing Performance (RP) category.

Select ‘Confirm & learn‘ when you have read this article in its entirety and you will be taken to begin your Patient Case Review.

Save $160 when you register for a 2026 seminar today!

You're invited to attend the Women's & Children's Health Update 2026, Australia's most popular seminar for GPs and healthcare professionals. Secure your seat to a seminar in a city near you!