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Viral Infections

What are viruses?

Viruses are very tiny germs. They are made of genetic material (either DNA or RNA) inside of a protein coating. There are a huge number of viruses on earth. Only a small number of them can infect humans. Those viruses can infect our cells, which may cause disease. Some of the diseases that viruses can cause include the common cold, the flu, COVID-19, and HIV.

How are viruses spread?

Viruses can be spread in different ways:

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Results 1 - 10 of 1,414 for viral disease
  1. Viral Infections (National Library of Medicine)  
    ... Vaccines can help prevent you from getting many viral diseases. You may be able to prevent some viral infections by: Proper hand washing. Paying attention to ...
  2. Ebola (National Library of Medicine)  
    What is Ebola? Ebola, also known as Ebola virus disease (EVD), is a type of hemorrhagic fever. It ...
  3. A vaccine (Ervebo) is available to prevent Ebola virus disease in people who live in the most at- ... for Disease Control and Prevention website. Ebola (Ebola virus disease). www.cdc.gov/vhf/ebola . Updated March 21, ...
  4. Ebola Virus Disease (World Health Organization)  
    WHO fact sheet on Ebola: key facts, definition, transmission, symptoms, diagnosis, treatment, prevention, WHO response. ... Ebola/Start Here ... Ebola ... World Health ...
  5. About Powassan Virus Disease (Minnesota Department of Health)  
    Tick Bites/Specifics ... Tick Bites ... Minnesota Department of Health
  6. Marburg (Marburg Virus Disease) (Centers for Disease Control and Prevention)  
    Hemorrhagic Fevers/Specifics ... Hemorrhagic Fevers ... Centers for Disease Control and Prevention
  7. Marburg Virus Disease (World Health Organization)  
    Marburg virus disease ... Marburg virus disease is a highly virulent disease that causes haemorrhagic fever, with a fatality ratio of up to 88%.
  8. Ebola Virus Disease (American Academy of Family Physicians)  
    Ebola/Start Here ... Ebola ... American Academy of Family Physicians
  9. Zika Virus Disease (World Health Organization)  
    Zika Virus/Start Here ... Zika Virus ... World Health Organization ... Zika virus is primarily transmitted by the bite of an infected mosquito from the Aedes genus, ...
  10. ClinicalTrials.gov: Virus Diseases From the National Institutes of Health (National Institutes of Health)  
    Viral Infections/Clinical Trials ... Viral Infections ... National Institutes of Health ... From the National Institutes of Health
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