The hub for authoritative virus information
The Virus Questions network covers the viruses that generate the most public concern — built on primary sources from CDC, WHO, and NIH, not summaries of summaries.
Each site covers one virus in depth. This hub connects them and explains what they share: the same editorial standards, the same author, and the same commitment to accuracy.
SARS-CoV-2, variants, vaccines, long COVID
COVID-19 is caused by SARS-CoV-2, first identified in late 2019. It has caused more than 7 million deaths globally and spawned multiple variant waves. Questions about variants, vaccines, long COVID, and reinfection remain highly relevant.
Outbreaks, transmission, treatment, hemorrhagic fever
Ebola virus disease (EVD) is a severe, often fatal illness caused by Ebola virus. Outbreaks occur primarily in sub-Saharan Africa. A novel variant emerged in the DRC's Ituri Province in 2026, prompting a WHO Public Health Emergency of International Concern.
HPS, HFRS, rodent exposure, prevention
Hantavirus causes two serious diseases: Hantavirus Pulmonary Syndrome (HPS) in the Americas and Hemorrhagic Fever with Renal Syndrome (HFRS) in Europe and Asia. It is transmitted by inhaling dust contaminated with infected rodent droppings — not person-to-person (except the Andes virus strain).
Stomach bug, cruise ships, food safety, outbreaks
Norovirus is the leading cause of acute gastroenteritis worldwide, responsible for 685 million illnesses and 200,000 deaths annually. It spreads through contaminated food, water, and surfaces — and is highly resistant to alcohol hand sanitizers. There is no approved vaccine or antiviral.
Three sites. One set of standards. One author. All primary sources.
Every health claim is linked to its source: CDC, WHO, FDA, NIH, or peer-reviewed literature. We do not summarize other websites.
Each site is reviewed monthly against live CDC and WHO guidance. Pages are corrected when authority sources change — not just when it's convenient.
When science is unsettled — a novel variant, an emerging outbreak, incomplete trial data — we say so. We do not fill knowledge gaps with inference.
This network provides general educational information only. For personal health decisions, consult a qualified healthcare provider.
Last updated: · Editorial Policy · Corrections Policy