PCR Testing: DNA-Level Accuracy for Infections
PCR (polymerase chain reaction) detects infections by identifying the pathogen's own genetic material. It does not wait for your immune system to respond. This is why it catches infections earlier, with fewer false negatives, than any other testing method available. Walk into any of three branches or order a home kit delivered anywhere in South Africa.
What PCR Is and Why It Matters
Most people encounter PCR testing through COVID-19 nasal swabs, but the technology has been central to infectious disease diagnostics since the 1980s. PCR works by amplifying tiny amounts of genetic material (DNA or RNA) from a pathogen until there is enough to detect. If the pathogen is present in your sample, even in very small quantities, PCR finds it.
This matters because the alternative methods rely on your body rather than the pathogen itself. Antibody tests wait for your immune system to produce a response, which can take 4 to 12 weeks. Antigen tests look for proteins on the pathogen's surface, but only work when the pathogen is present in high concentrations. PCR detects the organism's DNA directly, regardless of how your immune system is responding.
PCR vs Rapid and Antibody Tests
When rapid tests make sense: initial screening where speed is the priority (e.g. acute HIV testing, point-of-care triage). When PCR is essential: confirming a diagnosis, identifying the exact pathogen, early-stage detection, monitoring treatment response, asymptomatic screening. Epicentre offers both, but uses PCR for all sexual health, respiratory, UTI and gut panels.
Five Advantages of PCR
Early detection
Identifies infections from 2 weeks after exposure, before antibodies develop or symptoms appear. Critical for asymptomatic STIs like chlamydia (70% silent) and HPV (almost always silent).
High accuracy
Detects the pathogen's genetic material directly. Very low false-negative rate (high sensitivity) and very low false-positive rate (high specificity). Epicentre's labs use validated real-time PCR assays with rigorous quality assurance workflows.
Exact identification
PCR identifies the specific organism causing the infection, not just the presence of "something." This means targeted treatment rather than broad-spectrum approaches. It also distinguishes between HSV-1 and HSV-2, identifies specific HPV strains, and separates mycoplasma genitalium from mycoplasma hominis.
Quantifiable results
PCR can measure the amount of pathogen present (viral or bacterial load), allowing clinicians to track treatment response over time. This is particularly important for HIV viral load monitoring and hepatitis management.
Plain-language reporting
Epicentre delivers two reports: a colour-coded summary designed for patients and a standard lab report for healthcare providers. No medical degree required to understand your results.
What Epicentre Tests with PCR
Sexual Health (4 – 35 targets)
Chlamydia, gonorrhoea, herpes HSV-1/HSV-2, HPV, mycoplasma genitalium, mycoplasma hominis, ureaplasma, trichomoniasis, plus vaginal microbiome and Candida species in larger panels.
Respiratory (10 – 29 targets)
Influenza A and B, RSV, COVID-19, adenovirus, parainfluenza, rhinovirus, metapneumovirus, bordetella pertussis, mycoplasma pneumoniae and more.
Urinary Tract (11 targets)
Bacterial and fungal UTI pathogens including E. coli, enterococcus, seven Candida species, S. aureus and Strep. agalactiae.
Gut Health (17 – 44 targets)
Microbiome composition analysis: beneficial bacteria (Lactobacillus, Bifidobacterium), pathogens, parasites, H. pylori. Includes functional disease association reporting in the comprehensive panel.
BV and Vaginal Microbiome (17 targets)
Full vaginal microbiome assessment: Gardnerella, Atopobium, Prevotella, Mobiluncus, Megasphaera, four Lactobacillus species, plus BV-associated markers.
HPV Typing (27 strains)
Full strain identification: 14 high-risk strains (including HPV-16, HPV-18) and 13 low-risk strains. Differentiates between cancer-causing and non-cancer strains.
Available across South Africa. Walk into a branch in Durban (Hillcrest), Cape Town (Observatory) or Johannesburg (Parktown North) for any PCR test. For swab and stool-based tests, order a home kit delivered to any address in South Africa: your home, your office, your university res, or a Stelkor pharmacy pickup point in Stellenbosch. Same laboratory, same accuracy, same results via email.
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How PCR Testing Works at Epicentre
Walk in or book online
Three branches: Durban (Hillcrest), Cape Town (Observatory), Johannesburg (Parktown North). No doctor's referral needed. Or order a home kit for delivery nationwide.
Sample collection
Swab (self-collected in a private room for sexual health, respiratory and BV), urine, stool or blood depending on the test. A nurse assists with blood draws. Swab tests take under 5 minutes.
Laboratory analysis
Your sample is processed in Epicentre's certified molecular laboratory using real-time PCR. Quality assurance workflows ensure reliable, reproducible results aligned with international standards.
Results via email
5 – 7 working days for PCR panels. You receive a colour-coded patient report plus a standard lab report. If your result is positive, Epicentre's Test and Treat programme connects you to a doctor.
Home PCR Kits: Delivered Anywhere in South Africa
Every PCR panel that uses a swab or stool sample is available as a home collection kit. You collect your own sample at home using the included instructions, seal it, and post it back with the prepaid return label. The same laboratory analysis is performed on home-collected samples as on clinic-collected ones.
Kits arrive in discreet, unmarked packaging with no logos or medical stickers. Results are delivered via email. Nobody else knows you tested. Kits are delivered to any address in South Africa, from Sandton to Stellenbosch to Durban North. Blood-based tests (HIV, syphilis, hepatitis B) require a walk-in visit because they need a venous blood draw.
Frequently Asked Questions
What is PCR testing?
PCR vs rapid tests: which is better?
What infections does Epicentre test with PCR?
How long do PCR results take?
Can I do PCR testing at home?
Do I need a doctor's referral?
How accurate is PCR?
Accuracy Matters. Test with PCR.
DNA-level detection. No doctor's referral. Walk-in or home kit. Results via email.
Epicentre Walk-In Labs does not provide medical diagnoses. For medical diagnoses and advice, please consult your healthcare practitioner. Practice #1117394.
