Health Guides
Clear answers to the most common questions about infectious diseases and outbreak safety. All content reviewed against WHO, CDC, and peer-reviewed medical sources.
Disease Questions
- What Is Ebola?
- What Is Dengue Fever?
- What Is Mpox?
- What Is H5N1 Bird Flu?
- What Is Nipah Virus?
- What Is Zika Virus?
- What Is Chikungunya?
- How Does Ebola Spread?
- Is Dengue Fever Contagious?
- How Long Does Dengue Fever Last?
- What Are the Early Symptoms of Ebola?
- What Is the Difference Between Dengue and Malaria?
- Can You Get COVID-19 More Than Once?
- What Is Long COVID?
- How Is Nipah Virus Transmitted?
- Which Countries Have Been Affected by Ebola?
- Is Mpox the Same as Smallpox?
- Can Bird Flu Infect Humans?
Outbreak Questions
How to Use These Guides
Each health guide on VirusWatch is written to directly answer a specific question using the best available evidence from WHO, CDC, peer-reviewed medical journals, and national health agencies. Questions are answered in plain language without jargon, with the most important facts in the first paragraph — so you can read the answer quickly and then explore the detail below.
These guides are for general education only — not for diagnosing or treating any condition. If you are experiencing symptoms, have been in contact with a case of an infectious disease, or are making a healthcare decision, please consult a qualified physician or contact your national health authority.
Why Authoritative Sources Only
The internet is saturated with health misinformation, particularly during active outbreaks. VirusWatch health guides cite only primary authoritative sources: WHO situation reports and technical guidance, CDC clinical and epidemiological summaries, ECDC risk assessments, PAHO regional data, and peer-reviewed publications in journals such as The Lancet, NEJM, Nature Medicine, and JAMA. We do not cite social media, tabloid health coverage, or non-peer-reviewed preprints without clear caveats.
All disease questions reference official diagnostic criteria and clinical presentations from WHO or CDC guidance documents. Outbreak questions draw on WHO situation reports and peer-reviewed epidemiological analyses — not social media trend reporting.
Frequently Asked Questions About Our Guides
Are these guides updated regularly? — Yes. Each guide displays its last review date. We review guides when WHO or CDC updates its public-health information, when new evidence changes the understanding of a disease, or when new medicines or vaccines are approved.
Can I share these guides? — Yes. All VirusWatch content is freely shareable for educational purposes. Each guide includes social sharing buttons and a stable URL.
What if I have a health question not covered here? — Use the AI Health Assistant on any disease page to ask a question in natural language. It draws on WHO and CDC guidelines to answer in plain English. For clinical advice specific to your situation, please consult a physician.
How do I report an error? — Use the Support page to flag any factual errors. We take accuracy seriously and will correct verified errors promptly with a note on what changed.