ℹ️ Skipped - page is already crawled
| Filter | Status | Condition | Details |
|---|---|---|---|
| HTTP status | PASS | download_http_code = 200 | HTTP 200 |
| Age cutoff | PASS | download_stamp > now() - 6 MONTH | 0 months ago |
| History drop | PASS | isNull(history_drop_reason) | No drop reason |
| Spam/ban | PASS | fh_dont_index != 1 AND ml_spam_score = 0 | ml_spam_score=0 |
| Canonical | PASS | meta_canonical IS NULL OR = '' OR = src_unparsed | Not set |
| Property | Value |
|---|---|
| URL | https://www.nfid.org/infectious-disease/coronaviruses/ |
| Last Crawled | 2026-04-11 04:07:18 (4 hours ago) |
| First Indexed | 2023-06-09 19:09:18 (2 years ago) |
| HTTP Status Code | 200 |
| Meta Title | Coronaviruses (COVID-19) – NFID |
| Meta Description | Coronaviruses are a family of viruses that cause illness ranging from the common cold to potentially severe diseases such as COVID-19 and Severe Acute Respiratory Syndrome (SARS) |
| Meta Canonical | null |
| Boilerpipe Text | What Are Coronaviruses?
Coronaviruses are a large family of respiratory viruses that includes COVID-19, Middle East Respiratory Syndrome (MERS), and Severe Acute Respiratory Syndrome (SARS). Coronaviruses cause diseases in animals and humans. In humans, the viruses can cause mild respiratory infections, like the common cold, but can lead to serious illnesses, like pneumonia.
Coronaviruses are named for the crown-like spikes on their surface.
Coronavirus Disease 2019 (COVID-19)
was first reported in 2019 in Wuhan, China. COVID-19 is a disease caused by the SARS-CoV-2 virus and can be very contagious and spreads quickly.
Middle East Respiratory Syndrome (MERS)
 was first reported in 2012 in Saudi Arabia and spread to more than 25 other countries. About 3 or 4 out of every 10 patients reported with MERS have died. MERS cases continue to occur, primarily in the Arabian Peninsula; however, there have been only 2 confirmed cases of MERS in the US, both in 2014.
Severe Acute Respiratory Syndrome (SARS)
was first reported in Southern China in 2002. Infection with the SARS virus causes acute respiratory distress (severe breathing difficulty), with a mortality rate of about 10%. The illness spread to more than 2 dozen countries in North America, South America, Europe, and Asia before the SARS global outbreak of 2003 was contained.
Burden
More than 1 million people have died from COVID-19 in the US since the virus first emerged in Wuhan, China in December 2019. According to preliminary
estimates
from the Centers for Disease Control and Prevention (CDC), there have been at least 10 million COVID-19-related illnesses, 300,000 hospitalizations, and 35,000 deaths, during the 2024-2025 US respiratory season.
Symptoms
Most people get infected with human strains of coronaviruses at some point in their lives. These illnesses usually last for a short amount of time, and symptoms may include:
Fever
Chills
Cough
Headache
Runny nose
Shortness of breath
Sore throat
Additional symptoms have been reported with
COVID-19.
Coronaviruses can cause other more serious illnesses, such as pneumonia or bronchitis. This is more common in individuals with heart and lung disease, those with weakened immune systems, infants, and older adults.
Prevention
Coronaviruses are spread through respiratory droplets when an infected person coughs, sneezes, or talks. The viruses can also be spread through:
Close personal contact, such as touching or shaking hands
Touching an object or surface with the virus on it, then touching your mouth, nose, or eyes
There are steps you can take to help stop the spread and protect yourself and others from severe illness:
Get vaccinated
as recommended
Wash your hands with soap and water for at least 20 seconds
Avoid touching your eyes, nose, and mouth
Cover coughs and sneezes with a tissue
Clean and disinfect objects and surfaces
Avoid close contact with people who are sick and stay home if you are sick
Wear a face mask, particularly if you are at high risk for severe disease
Take steps for cleaner air, such as opening windows or going outdoors
COVID-19 vaccination is the best way to protect against severe disease and death from COVID-19.
Treatment
The Â
Food and Drug Administration (FDA)
has authorized or approved treatments for certain individuals who are more likely to get very sick from COVID-19. If you test positive, contact a trusted healthcare professional immediately to see if treatment is right for you.
For all patients who have COVID-19 or other coronaviruses, supportive care is recommended:
Take pain and fever medications
Use a humidifier or take a hot shower
Drink plenty of liquids
Stay home and rest
Updated July 2025
Sources: Centers for Disease Control and Prevention, Food and Drug Administration |
| Markdown | [Skip to content](https://www.nfid.org/infectious-disease/coronaviruses/#fl-main-content)
[Facebook](http://www.facebook.com/nfidvaccines)[Twitter](https://x.com/nfidvaccines)[Linkedin](https://www.linkedin.com/company/national-foundation-for-infectious-diseases/)[Youtube](http://www.youtube.com/nfidvideos)[Instagram](https://www.instagram.com/nfid_vaccines/)
- [Education and Events](https://www.nfid.org/education-events/)
- [News and Updates](https://www.nfid.org/news-updates/)
- [Partnerships](https://www.nfid.org/partnerships/)
- [About NFID](https://www.nfid.org/about-nfid/)
- [Support NFID](https://www.nfid.org/support-nfid/)
[](https://www.nfid.org/)
Menu
- [Infectious Diseases](https://www.nfid.org/infectious-diseases/)
- [Column 1](https://www.nfid.org/infectious-disease/coronaviruses/)
- [Chickenpox (Varicella)](https://www.nfid.org/infectious-disease/chickenpox/)
- [Chikungunya](https://www.nfid.org/infectious-disease/chikungunya/)
- [Coronaviruses (COVID-19)](https://www.nfid.org/infectious-disease/coronaviruses/)
- [Cytomegalovirus (CMV)](https://www.nfid.org/infectious-disease/cytomegalovirus-cmv/)
- [Dengue](https://www.nfid.org/infectious-disease/dengue/)
- [Diphtheria](https://www.nfid.org/infectious-disease/diphtheria/)
- [Ebola](https://www.nfid.org/infectious-disease/ebola/)
- [Flu (Influenza)](https://www.nfid.org/infectious-disease/flu/)
- [Hepatitis](https://www.nfid.org/infectious-disease/hepatitis/)
- [Hib Disease](https://www.nfid.org/infectious-disease/hib/)
- [Column 2](https://www.nfid.org/infectious-disease/coronaviruses/)
- [HIV/AIDS](https://www.nfid.org/infectious-disease/hiv-aids/)
- [HPV (Human Papillomavirus)](https://www.nfid.org/infectious-disease/hpv/)
- [Japanese Encephalitis](https://www.nfid.org/infectious-disease/japanese-encephalitis/)
- [Measles](https://www.nfid.org/infectious-disease/measles/)
- [Meningococcal Disease](https://www.nfid.org/infectious-disease/meningococcal/)
- [Mpox](https://www.nfid.org/infectious-disease/mpox/)
- [Mumps](https://www.nfid.org/infectious-disease/mumps/)
- [Norovirus](https://www.nfid.org/infectious-disease/norovirus/)
- [Pneumococcal Disease](https://www.nfid.org/infectious-disease/pneumococcal/)
- [Polio](https://www.nfid.org/infectious-disease/polio/)
- [Column 3](https://www.nfid.org/infectious-disease/coronaviruses/)
- [Rabies](https://www.nfid.org/infectious-disease/rabies/)
- [Respiratory Syncytial Virus (RSV)](https://www.nfid.org/infectious-disease/rsv/)
- [Rotavirus](https://www.nfid.org/infectious-disease/rotavirus/)
- [Rubella](https://www.nfid.org/infectious-disease/rubella/)
- [Shingles (Herpes Zoster)](https://www.nfid.org/infectious-disease/shingles/)
- [Tetanus](https://www.nfid.org/infectious-disease/tetanus/)
- [Tuberculosis (TB)](https://www.nfid.org/infectious-disease/tuberculosis-tb/)
- [Whooping Cough (Pertussis)](https://www.nfid.org/infectious-disease/whooping-cough/)
- [Zika](https://www.nfid.org/infectious-disease/zika/)
- [Immunization](https://www.nfid.org/immunization/)
- [Handwashing](https://www.nfid.org/handwashing/)
- [Hands In For Handwashing](https://www.nfid.org/hands-in-for-handwashing/)
- [Resources](https://www.nfid.org/resources/)
- [Resource Library](https://www.nfid.org/resources/resource-library/)
- [En Español](https://www.nfid.org/resources/resource-library/?_topic=spanish)
- [Graphics](https://www.nfid.org/resources/graphics/)
- [Contagious Chronicles](https://www.nfid.org/resources/contagious-chronicles/)
- [Infectious IDeas (Podcast)](https://www.nfid.org/resources/infectious-ideas-podcast/)
- [Public Service Announcements](https://www.nfid.org/resources/public-service-announcements/)
- [Real Stories, Real People](https://www.nfid.org/resources/real-stories-real-people/)
- [Surveys and Publications](https://www.nfid.org/resources/publications/)
- [Support NFID](https://www.nfid.org/support-nfid/)
- [Select Language](https://www.nfid.org/infectious-disease/coronaviruses/ "Global Switch")
- [Search](https://www.nfid.org/ask-merl)
[**Back to Infectious Diseases**](https://www.nfid.org/infectious-diseases/)
# Coronaviruses (COVID-19)
Coronaviruses are a large family of respiratory viruses that includes COVID-19
1. [Home](https://www.nfid.org/)
2. [Infectious Diseases](https://www.nfid.org/infectious-disease/)
3. Coronaviruses (COVID-19)
[Facebook](https://www.nfid.org/#facebook)
[X](https://www.nfid.org/#x)
[LinkedIn](https://www.nfid.org/#linkedin)
[Email](https://www.nfid.org/#email)
[Print](https://www.nfid.org/#print)

## What Are Coronaviruses?
Coronaviruses are a large family of respiratory viruses that includes COVID-19, Middle East Respiratory Syndrome (MERS), and Severe Acute Respiratory Syndrome (SARS). Coronaviruses cause diseases in animals and humans. In humans, the viruses can cause mild respiratory infections, like the common cold, but can lead to serious illnesses, like pneumonia.
Coronaviruses are named for the crown-like spikes on their surface.
**[Coronavirus Disease 2019 (COVID-19)](https://www.nfid.org/infectious-diseases/covid-19/covid-vaccine-faq/)** was first reported in 2019 in Wuhan, China. COVID-19 is a disease caused by the SARS-CoV-2 virus and can be very contagious and spreads quickly.
[COVID-19 Frequently Asked Questions](https://www.nfid.org/infectious-diseases/covid-19/)
**Middle East Respiratory Syndrome (MERS)** was first reported in 2012 in Saudi Arabia and spread to more than 25 other countries. About 3 or 4 out of every 10 patients reported with MERS have died. MERS cases continue to occur, primarily in the Arabian Peninsula; however, there have been only 2 confirmed cases of MERS in the US, both in 2014.
**Severe Acute Respiratory Syndrome (SARS)** was first reported in Southern China in 2002. Infection with the SARS virus causes acute respiratory distress (severe breathing difficulty), with a mortality rate of about 10%. The illness spread to more than 2 dozen countries in North America, South America, Europe, and Asia before the SARS global outbreak of 2003 was contained.
### Burden
More than 1 million people have died from COVID-19 in the US since the virus first emerged in Wuhan, China in December 2019. According to preliminary [estimates](https://www.cdc.gov/covid/php/surveillance/burden-estimates.html) from the Centers for Disease Control and Prevention (CDC), there have been at least 10 million COVID-19-related illnesses, 300,000 hospitalizations, and 35,000 deaths, during the 2024-2025 US respiratory season.
### Symptoms
Most people get infected with human strains of coronaviruses at some point in their lives. These illnesses usually last for a short amount of time, and symptoms may include:
- Fever
- Chills
- Cough
- Headache
- Runny nose
- Shortness of breath
- Sore throat
Additional symptoms have been reported with [COVID-19.](https://www.nfid.org/infectious-diseases/covid-19/) Coronaviruses can cause other more serious illnesses, such as pneumonia or bronchitis. This is more common in individuals with heart and lung disease, those with weakened immune systems, infants, and older adults.
### Prevention
Coronaviruses are spread through respiratory droplets when an infected person coughs, sneezes, or talks. The viruses can also be spread through:
- Close personal contact, such as touching or shaking hands
- Touching an object or surface with the virus on it, then touching your mouth, nose, or eyes
There are steps you can take to help stop the spread and protect yourself and others from severe illness:
- **Get vaccinated** as recommended
- Wash your hands with soap and water for at least 20 seconds
- Avoid touching your eyes, nose, and mouth
- Cover coughs and sneezes with a tissue
- Clean and disinfect objects and surfaces
- Avoid close contact with people who are sick and stay home if you are sick
- Wear a face mask, particularly if you are at high risk for severe disease
- Take steps for cleaner air, such as opening windows or going outdoors
**COVID-19 vaccination is the best way to protect against severe disease and death from COVID-19.**
### Treatment
The [Food and Drug Administration (FDA)](https://www.fda.gov/consumers/consumer-updates/know-your-treatment-options-covid-19) has authorized or approved treatments for certain individuals who are more likely to get very sick from COVID-19. If you test positive, contact a trusted healthcare professional immediately to see if treatment is right for you.
For all patients who have COVID-19 or other coronaviruses, supportive care is recommended:
- Take pain and fever medications
- Use a humidifier or take a hot shower
- Drink plenty of liquids
- Stay home and rest
Updated July 2025
Sources: Centers for Disease Control and Prevention, Food and Drug Administration
## Related Resources

December 16, 2025 3:00 pm
## [Respiratory Immunization Updates: Protecting Maternal and Special Populations](https://www.nfid.org/webinar/respiratory-immunization-updates-protecting-maternal-and-special-populations/ "Respiratory Immunization Updates: Protecting Maternal and Special Populations")
In this recorded webinar, NFID hosts a discussion on the importance of respiratory vaccination among pregnant women and immunocompromised individuals …
[Learn More](https://www.nfid.org/webinar/respiratory-immunization-updates-protecting-maternal-and-special-populations/ "Respiratory Immunization Updates: Protecting Maternal and Special Populations")

Surveys and Publications
## [2025 National Survey on Respiratory Diseases](https://www.nfid.org/resource/2025-national-survey-on-respiratory-diseases/ "2025 National Survey on Respiratory Diseases")
The 2025 national survey examines attitudes and behaviors regarding flu, RSV, COVID-19, and pneumococcal disease.
[Learn More](https://www.nfid.org/resource/2025-national-survey-on-respiratory-diseases/ "2025 National Survey on Respiratory Diseases")

October 8, 2025 1:30 pm
## [2025-2026 US Respiratory Season Updates](https://www.nfid.org/webinar/2025-2026-us-respiratory-season-updates/ "2025-2026 US Respiratory Season Updates")
In this recorded webinar, NFID hosts a discussion highlighting the importance of immunization to help protect against severe illness during the upcoming respiratory season …
[Learn More](https://www.nfid.org/webinar/2025-2026-us-respiratory-season-updates/ "2025-2026 US Respiratory Season Updates")
[View All](https://www.nfid.org/resources/resource-library/?_disease=coronaviruses)
## Related Posts

April 6, 2026
## [News Round-Up: Public Health in Flux](https://www.nfid.org/news-round-up-public-health-in-flux/ "News Round-Up: Public Health in Flux")
News and expert insights on public health policy, outbreak response, and evolving risks across the US and globally
[Learn More](https://www.nfid.org/news-round-up-public-health-in-flux/ "News Round-Up: Public Health in Flux")

February 12, 2026
## [5 Reasons Why Vaccines Are Good for Your Heart](https://www.nfid.org/5-reasons-why-vaccines-are-good-for-your-heart-2/ "5 Reasons Why Vaccines Are Good for Your Heart")
For people with heart disease, getting vaccinated is as important to staying healthy as diet and exercise
[Learn More](https://www.nfid.org/5-reasons-why-vaccines-are-good-for-your-heart-2/ "5 Reasons Why Vaccines Are Good for Your Heart")

February 5, 2026
## [News Round-Up: Vaccines, Measles, Flu, and COVID-19](https://www.nfid.org/news-round-up-vaccines-measles-flu-and-covid-19/ "News Round-Up: Vaccines, Measles, Flu, and COVID-19")
News and expert insights on COVID-19, influenza, measles, outbreak preparedness, and vaccine policy—including growing concerns about data gaps, divergent immunization recommendations, and the real-world consequences for public health
[Learn More](https://www.nfid.org/news-round-up-vaccines-measles-flu-and-covid-19/ "News Round-Up: Vaccines, Measles, Flu, and COVID-19")
[View All](https://www.nfid.org/news-updates/blog-articles/?_disease=coronaviruses)
## Subscribe to NFID Updates
[Subscribe](https://nfid.app.neoncrm.com/forms/subscription-form)
[](https://www.nfid.org/)
7201 Wisconsin Avenue
Suite 750
Bethesda, MD 20814
Phone: 301.656.0003
[NFID Facebook Profile](http://www.facebook.com/nfidvaccines) [NFID Twitter Profile](http://www.twitter.com/nfidvaccines) [NFID LinkedIn Profile](https://www.linkedin.com/company/national-foundation-for-infectious-diseases/) [NFID Youtube Account Link](http://www.youtube.com/nfidvideos) [NFID Instagram Account](https://www.instagram.com/nfid_vaccines/)
1629 K Street, NW
Suite 300
Washington, DC 20006
Founded in 1973, the National Foundation for Infectious Diseases (NFID) is an independent non-profit 501(c)(3) organization dedicated to educating and engaging the public, communities, and healthcare professionals about infectious diseases across the lifespan.
This website is designed to provide education to the public and healthcare professionals about infectious diseases across the lifespan. All information on this site is for general purposes only, is based on US recommendations, and is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Contact a qualified healthcare professional if you have questions or concerns about your health.
**Federal EIN:** 23-7198530
- [Education and Events](https://www.nfid.org/education-events/)
- [News and Updates](https://www.nfid.org/news-updates/)
- [Partnerships](https://www.nfid.org/partnerships/)
- [About NFID](https://www.nfid.org/about-nfid/)
- [Infectious Diseases](https://www.nfid.org/infectious-diseases/)
- [Immunization](https://www.nfid.org/immunization/)
- [COVID-19](https://www.nfid.org/infectious-diseases/covid-19/)
- [Antibiotic Resistance](https://www.nfid.org/antibiotic-resistance/)
- [Resources](https://www.nfid.org/resources/)
- [Contact Us](https://www.nfid.org/about-nfid/contact-us/)
- [Support NFID](https://www.nfid.org/support-nfid/)
- [Privacy Policy](https://www.nfid.org/privacy-policy/)
- [Accessibility](https://www.nfid.org/accessibility-statement/)
- [Disclaimer](https://www.nfid.org/disclaimer/)
[](https://www.charitynavigator.org/ein/237198530)
[](https://www.guidestar.org/profile/23-7198530)
[](https://www.who.int/teams/regulation-prequalification/regulation-and-safety/pharmacovigilance/networks/vaccine-safety-net/vsn-members)
[Scroll To Top](https://www.nfid.org/infectious-disease/coronaviruses/)
âś“
Thanks for sharing\!
[AddToAny](https://www.addtoany.com/ "Share Buttons")
[More…](https://www.nfid.org/infectious-disease/coronaviruses/#addtoany "Show all") |
| Readable Markdown | ## What Are Coronaviruses?
Coronaviruses are a large family of respiratory viruses that includes COVID-19, Middle East Respiratory Syndrome (MERS), and Severe Acute Respiratory Syndrome (SARS). Coronaviruses cause diseases in animals and humans. In humans, the viruses can cause mild respiratory infections, like the common cold, but can lead to serious illnesses, like pneumonia.
Coronaviruses are named for the crown-like spikes on their surface.
**[Coronavirus Disease 2019 (COVID-19)](https://www.nfid.org/infectious-diseases/covid-19/covid-vaccine-faq/)** was first reported in 2019 in Wuhan, China. COVID-19 is a disease caused by the SARS-CoV-2 virus and can be very contagious and spreads quickly.
**Middle East Respiratory Syndrome (MERS)** was first reported in 2012 in Saudi Arabia and spread to more than 25 other countries. About 3 or 4 out of every 10 patients reported with MERS have died. MERS cases continue to occur, primarily in the Arabian Peninsula; however, there have been only 2 confirmed cases of MERS in the US, both in 2014.
**Severe Acute Respiratory Syndrome (SARS)** was first reported in Southern China in 2002. Infection with the SARS virus causes acute respiratory distress (severe breathing difficulty), with a mortality rate of about 10%. The illness spread to more than 2 dozen countries in North America, South America, Europe, and Asia before the SARS global outbreak of 2003 was contained.
### Burden
More than 1 million people have died from COVID-19 in the US since the virus first emerged in Wuhan, China in December 2019. According to preliminary [estimates](https://www.cdc.gov/covid/php/surveillance/burden-estimates.html) from the Centers for Disease Control and Prevention (CDC), there have been at least 10 million COVID-19-related illnesses, 300,000 hospitalizations, and 35,000 deaths, during the 2024-2025 US respiratory season.
### Symptoms
Most people get infected with human strains of coronaviruses at some point in their lives. These illnesses usually last for a short amount of time, and symptoms may include:
- Fever
- Chills
- Cough
- Headache
- Runny nose
- Shortness of breath
- Sore throat
Additional symptoms have been reported with [COVID-19.](https://www.nfid.org/infectious-diseases/covid-19/) Coronaviruses can cause other more serious illnesses, such as pneumonia or bronchitis. This is more common in individuals with heart and lung disease, those with weakened immune systems, infants, and older adults.
### Prevention
Coronaviruses are spread through respiratory droplets when an infected person coughs, sneezes, or talks. The viruses can also be spread through:
- Close personal contact, such as touching or shaking hands
- Touching an object or surface with the virus on it, then touching your mouth, nose, or eyes
There are steps you can take to help stop the spread and protect yourself and others from severe illness:
- **Get vaccinated** as recommended
- Wash your hands with soap and water for at least 20 seconds
- Avoid touching your eyes, nose, and mouth
- Cover coughs and sneezes with a tissue
- Clean and disinfect objects and surfaces
- Avoid close contact with people who are sick and stay home if you are sick
- Wear a face mask, particularly if you are at high risk for severe disease
- Take steps for cleaner air, such as opening windows or going outdoors
**COVID-19 vaccination is the best way to protect against severe disease and death from COVID-19.**
### Treatment
The [Food and Drug Administration (FDA)](https://www.fda.gov/consumers/consumer-updates/know-your-treatment-options-covid-19) has authorized or approved treatments for certain individuals who are more likely to get very sick from COVID-19. If you test positive, contact a trusted healthcare professional immediately to see if treatment is right for you.
For all patients who have COVID-19 or other coronaviruses, supportive care is recommended:
- Take pain and fever medications
- Use a humidifier or take a hot shower
- Drink plenty of liquids
- Stay home and rest
Updated July 2025
Sources: Centers for Disease Control and Prevention, Food and Drug Administration |
| Shard | 144 (laksa) |
| Root Hash | 2699451117106692344 |
| Unparsed URL | org,nfid!www,/infectious-disease/coronaviruses/ s443 |