COVID-19 (Coronavirus Disease 2019)

Also called: Coronavirus, COVID-19

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Basics

Summary
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Symptoms
Diagnosis and Tests
Prevention and Risk Factors
Treatments and Therapies

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Related Issues
Specifics

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Summary

COVID-19 (coronavirus disease 2019) is an illness caused by a virus. This virus is a coronavirus called SARS-CoV-2. It spreads when a person who has the infection breathes out droplets and very small particles that contain the virus. On this page, you'll find links to resources on important issues such as symptoms, risks, and how you can protect yourself and your family.

We also have pages on:

Start Here

Coronavirus Disease 2019 (COVID-19) (Centers for Disease Control and Prevention)
NIH COVID-19 Research (National Institutes of Health)

Symptoms

COVID-19 and the Nervous System (National Institute of Neurological Disorders and Stroke)
COVID-19 Guidance for the Public (National Heart, Lung, and Blood Institute)
Post-COVID Conditions (Long COVID): MedlinePlus Health Topic (National Library of Medicine) Also in Spanish
Symptoms of COVID-19 (Centers for Disease Control and Prevention)

Diagnosis and Tests

COVID-19 Testing: MedlinePlus Health Topic (National Library of Medicine) Also in Spanish

Prevention and Risk Factors

Community Respirators and Masks (Centers for Disease Control and Prevention)
COVID-19 Vaccines: MedlinePlus Health Topic (National Library of Medicine) Also in Spanish
COVID-19: How to Protect Yourself and Others (Centers for Disease Control and Prevention)
How COVID-19 Spreads (Centers for Disease Control and Prevention)
People with Certain Medical Conditions and COVID-19 Risk Factors (Centers for Disease Control and Prevention)
Preventing Respiratory Viruses (Centers for Disease Control and Prevention) Also in Spanish
Preventing Spread of Respiratory Viruses When You're Sick (Centers for Disease Control and Prevention) Also in Spanish
Risk Factors for Severe Illness from Respiratory Viruses (Centers for Disease Control and Prevention) Also in Spanish

Treatments and Therapies

Coronavirus and "Alternative" Treatments: What You Need to Know (National Center for Complementary and Integrative Health) Also in Spanish
COVID-19 Treatment Information for Patients (Administration for Strategic Preparedness and Response)
Know Your Treatment Options for COVID-19 (Food and Drug Administration) Also in Spanish
Test to Treat (Administration for Strategic Preparedness and Response)
Treatment Locator: Find COVID-19 Medications (Administration for Strategic Preparedness and Response) Also in Spanish
Types of COVID-19 Treatment (Centers for Disease Control and Prevention)
Understanding the Regulatory Terminology of Potential Preventative and Therapeutic Drugs for COVID-19 (Food and Drug Administration) Also in Spanish

Related Issues

About MIS (Multisystem Inflammatory Syndrome) (Centers for Disease Control and Prevention)
Coronavirus and Your Health Coverage: Get the Basics (Centers for Medicare & Medicaid Services) - PDF Also in Spanish
COVID-19 and Breastfeeding (Centers for Disease Control and Prevention)
COVID-19: What People with Cancer Should Know (National Cancer Institute) Also in Spanish
Debunking COVID-19 (Coronavirus) Myths (Mayo Foundation for Medical Education and Research) Also in Spanish
HIV and COVID-19 (National Institutes of Health, Office of AIDS Research) Also in Spanish
Is It Flu, COVID-19, Allergies, or a Cold? (National Institutes of Health) Also in Spanish
Ivermectin and COVID-19 (Food and Drug Administration) Also in Spanish
Pulse Oximetry (National Library of Medicine) Also in Spanish
Q&A for Consumers: Hand Sanitizers and COVID-19 (Food and Drug Administration) Also in Spanish
Respiratory Viruses and People with Disabilities (Centers for Disease Control and Prevention) Also in Spanish
What You Should Know about COVID-19 and Pets (Centers for Disease Control and Prevention)

Specifics

About Reinfection Covid-19 (Centers for Disease Control and Prevention)

Statistics and Research

United States COVID-19 Deaths, Emergency Department (ED) Visits, and Test Positivity by Geographic Area (Centers for Disease Control and Prevention)

Clinical Trials

Joining a Study (COVID-19 Prevention Network)

Journal Articles References and abstracts from MEDLINE/PubMed (National Library of Medicine)

Find an Expert

National Institute of Allergy and Infectious Diseases

Children

Coronavirus (COVID-19): What to Do If Your Child Is Sick (Nemours Foundation) Also in Spanish
COVID-19 (Nemours Foundation) Also in Spanish
COVID-19 and Multisystem Inflammatory Syndrome in Children (MIS-C) (Nemours Foundation)
COVID-19: What Are Variants? (Nemours Foundation) Also in Spanish
Is It a Cold, the Flu, an RSV Infection, or COVID-19? (Nemours Foundation) Also in Spanish

Women

COVID-19: Pregnancy FAQs (Nemours Foundation) Also in Spanish
Is it Safe to Breastfeed if I Have COVID-19? (Nemours Foundation)
Respiratory Viruses and Pregnancy (Centers for Disease Control and Prevention) Also in Spanish

Older Adults

Respiratory Viruses and Older Adults (Centers for Disease Control and Prevention) Also in Spanish

Patient Handouts

COVID-19 - what to do when you are sick (Medical Encyclopedia) Also in Spanish
COVID-19 and face masks (Medical Encyclopedia) Also in Spanish
How to protect yourself and others from COVID-19 (Medical Encyclopedia) Also in Spanish
Mild to moderate COVID-19 - discharge (Medical Encyclopedia) Also in Spanish
Severe COVID-19 - discharge (Medical Encyclopedia) Also in Spanish
What to do after exposure to COVID-19 (Medical Encyclopedia) Also in Spanish