About This Site

CoronavirusQuestions.com was built to provide clear, sourced, and accurate information about SARS-CoV-2 and COVID-19 at a time when misinformation about the virus, its vaccines, and its treatments spread alongside the pandemic itself.

Our goal is to present what peer-reviewed science and public health consensus actually show — including where that consensus is uncertain or evolving — without sensationalism, political framing, or commercial distortion.

All content is written for a general audience and is not a substitute for professional medical advice. Readers with health concerns should consult a licensed healthcare provider.

A reasonable question about any health site is why it should exist when the agency's own page is a click away. This one does not compete with CDC; it does the layer underneath, which CDC's consumer pages deliberately leave out.

• The study behind the number. Where an agency page states a figure, we name the paper it comes from, give its confidence interval, and say who was enrolled. CDC states that vaccines are updated annually; we set out the three pivotal trials with their intervals and explain why their efficacy percentages cannot be ranked against each other.
• Where good sources disagree. Global COVID-19 mortality has three defensible figures — about 7 million reported, 14.9 million (WHO) and 18.2 million (The Lancet) in excess deaths for 2020–2021. We publish all three and explain what each measures rather than picking the one that reads best.
• Live surveillance the consumer pages do not summarise. CDC publishes emergency-department visit percentages, wastewater activity levels and COVID-NET hospitalisation rates as separate weekly datasets. We read them directly and report them together, with the date of the data we took them from.
• What is not known, and why. COVID-19 is no longer nationally notifiable, most testing is at home, the Long COVID survey stopped in 2024, and CDC's variant Nowcast stopped in April 2026. Each of those is a specific reason a specific question has no current answer, and we say so rather than filling the gap.
• Arithmetic shown. Where a figure is ours rather than a source's — a median computed from CDC's site-level file, a cost per person — it is labelled as our calculation and the division is shown.

Details of the method are on the How We Research page, which works three examples end to end and states what we refuse to compute.

We evaluate sources using a hierarchy of evidence standard consistent with evidence-based medicine:

1. Systematic reviews and meta-analyses of randomized controlled trials (highest confidence)
2. Individual randomized controlled trials (RCTs) — especially large, preregistered, double-blind trials
3. Prospective cohort studies with appropriate controls
4. Peer-reviewed observational studies published in indexed journals
5. Guidance from major public health agencies — CDC, WHO, NIH, FDA, ECDC — where based on the above evidence
6. Preprints (medRxiv, bioRxiv) — cited only where noted, with explicit caution, and not used as primary evidence for clinical claims

We do not cite press releases, social media posts, or news articles as primary evidence for scientific or clinical claims. We cite the underlying peer-reviewed study directly.

• All clinical statistics (efficacy percentages, mortality figures, trial enrollment numbers) are sourced to the specific published study, with a direct link to the DOI or source URL.
• Where scientific consensus exists, we state it clearly and distinguish it from areas of active debate.
• Where evidence is contested or preliminary, we say so explicitly rather than presenting one interpretation as settled fact.
• Debunked claims (hydroxychloroquine, ivermectin, microchip theories) are covered with full citation of the disconfirming trial data, not just assertion.
• Content is reviewed periodically and updated when major new evidence changes the picture — particularly on fast-moving topics like variants, vaccine effectiveness, and Long COVID.

CoronavirusQuestions.com has no affiliation with any pharmaceutical company, vaccine manufacturer, government agency, or political organization. No content on this site is sponsored, ghost-written, or editorially influenced by any commercial entity.

The site is set up to earn revenue through two independent channels — Google AdSense display advertising and Amazon Associates affiliate links — and as of September 2026 both are switched off: no ads and no affiliate links appear on any indexable page. Neither channel influences editorial decisions when active. There is no sponsored content, and no third party has ever paid for placement, review, or mention on any page.

Amazon Associates: CoronavirusQuestions.com is enrolled in the Amazon Services LLC Associates Program. As of September 2026 no affiliate link appears on any indexable page of this site — affiliate content is switched off network-wide behind a single flag and has stayed off. If it returns, product selections will be editorial rather than commission-driven, every affiliate link will carry a disclosure beside it, and this paragraph will be updated the day it changes.

Google AdSense: As of September 2026 this site displays no advertising. The site remains registered with Google AdSense and ads could be re-enabled; if that happens, this paragraph will say so on the day it changes. Any ads served would be selected by Google's algorithms, not by CoronavirusQuestions.com, and would not be editorial endorsements.

No sponsored content: No articles, pages, or product recommendations on this site are paid placements. If that ever changes, it will be explicitly labeled as sponsored content.

• Author: This site is written and researched by Andy Wilcox, an independent researcher, not a physician. Nothing on this site is medical advice.
• Primary-source research: Content is based on peer-reviewed studies and official guidance from bodies such as the CDC and WHO — not summaries of other websites.
• Verifiable citations: We cite specific studies and primary sources so readers can verify claims themselves.
• Kept current: Content is reviewed and updated when new evidence changes the picture.
• Consult a professional: For personal medical decisions, readers should consult a qualified healthcare professional.

COVID-19 science has evolved rapidly since 2020. We review and update content on an ongoing basis as new evidence emerges. Pages covering clinical topics (symptoms, treatment, Long COVID, vaccines) are the highest priority for review when new major studies are published.

The news feed (covid-news) and research index (covid-research) are updated daily via automated scripts pulling from verified sources.

If you spot an error, outdated information, or a broken citation, please contact us.

For corrections, feedback, or editorial inquiries, use the contact form. We read all submissions and respond to corrections as a priority.

We do not accept unsolicited guest posts, paid link insertions, or sponsored content requests.