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Coronavirus : Home

What is a novel coronavirus?

A novel coronavirus is a new coronavirus that has not been previously identified. The virus causing coronavirus disease 2019 (COVID-19), is not the same as the coronaviruses that commonly circulate among humans and cause mild illness, like the common cold.

A diagnosis with coronavirus 229E, NL63, OC43, or HKU1 is not the same as a COVID-19 diagnosis. Patients with COVID-19 will be evaluated and cared for differently than patients with common coronavirus diagnosis.

How It Spreads?

Person-to-Person Spread

The virus is thought to spread mainly from person-to-person.

  • Between people who are in close contact with one another (within about 6 feet).
  • Through respiratory droplets produced when an infected person coughs or sneezes.

These droplets can land in the mouths or noses of people who are nearby or possibly be inhaled into the lungs.

Can someone spread the virus without being sick?

  • People are thought to be most contagious when they are most symptomatic (the sickest).
  • Some spread might be possible before people show symptoms; there have been reports of this occurring with this new coronavirus, but this is not thought to be the main way the virus spreads.

Spread from contact with contaminated surfaces or objects

It may be possible that a person can get COVID-19 by touching a surface or object that has the virus on it and then touching their own mouth, nose, or possibly their eyes, but this is not thought to be the main way the virus spreads.

How easily the virus spreads

How easily a virus spreads from person-to-person can vary. Some viruses are highly contagious (spread easily), like measles, while other viruses do not spread as easily. Another factor is whether the spread is sustained, spreading continually without stopping.

The virus that causes COVID-19 seems to be spreading easily and sustainably in the community (“community spread”) in some affected geographic areas.

Watch for symptoms

Reported illnesses have ranged from mild symptoms to severe illness and death for confirmed coronavirus disease 2019 (COVID-19) cases.

The following symptoms may appear 2-14 days after exposure.*

  • Fever
  • Cough
  • Shortness of breath

Prevention and Treatment

There is currently no vaccine to prevent coronavirus disease 2019 (COVID-19).
The best way to prevent illness is to avoid being exposed to this virus.

The virus is thought to spread mainly from person-to-person.

  • Between people who are in close contact with one another (within about 6 feet).
  • Through respiratory droplets produced when an infected person coughs or sneezes.

These droplets can land in the mouths or noses of people who are nearby or possibly be inhaled into the lungs.

Older adults and people who have severe underlying chronic medical conditions like heart or lung disease or diabetes seem to be at higher risk for developing more serious complications from COVID-19 illness. Please consult with your health care provider about additional steps you may be able to take to protect yourself.

Take Steps to Protect Yourself

Illustration: washing hands with soap and water

Clean you hands often

  • Wash your hands often with soap and water for at least 20 seconds especially after you have been in a public place, or after blowing your nose, coughing, or sneezing.
  • If soap and water are not readily available, use a hand sanitizer that contains at least 60% alcohol. Cover all surfaces of your hands and rub them together until they feel dry.
  • Avoid touching your eyes, nose, and mouth with unwashed hands.
Illustration: Woman quarantined to her home

Avoid close contact

  • Avoid close contact with people who are sick
  • Put distance between yourself and other people if COVID-19 is spreading in your community. This is especially important for people who are at higher risk of getting very sick.

Take Steps To Protect Others

man in bed

Stay Home if you're sick

  • Stay home if you are sick, except to get medical care. Learn what to do if you are sick.
woman covering their mouth when coughing

Cover coughs and sneezes

  • Cover your mouth and nose with a tissue when you cough or sneeze or use the inside of your elbow.
  • Throw used tissues in the trash.
  • Immediately wash your hands with soap and water for at least 20 seconds. If soap and water are not readily available, clean your hands with a hand sanitizer that contains at least 60% alcohol.
man wearing a mask

Wear a facemask if you are sick

  • If you are sick:  You should wear a facemask when you are around other people (e.g., sharing a room or vehicle) and before you enter a healthcare provider’s office. If you are not able to wear a facemask (for example, because it causes trouble breathing), then you should do your best to cover your coughs and sneezes, and people who are caring for you should wear a facemask if they enter your room. Learn what to do if you are sick.
  • If you are NOT sick: You do not need to wear a facemask unless you are caring for someone who is sick (and they are not able to wear a facemask). Facemasks may be in short supply and they should be saved for caregivers.
cleaning a counter

Clean and disinfect

  • Clean AND disinfect frequently touched surfaces daily. This includes tables, doorknobs, light switches, countertops, handles, desks, phones, keyboards, toilets, faucets, and sinks.
  • If surfaces are dirty, clean them: Use detergent or soap and water prior to disinfection.

To disinfect:
Most common EPA-registered household disinfectants will work. Use disinfectants appropriate for the surface.

Options include:

  • Diluting your household bleach.
    To make a bleach solution, mix:
    • 5 tablespoons (1/3rd cup) bleach per gallon of water
      OR
    • 4 teaspoons bleach per quart of water

    Follow manufacturer’s instructions for application and proper ventilation. Check to ensure the product is not past its expiration date. Never mix household bleach with ammonia or any other cleanser. Unexpired household bleach will be effective against coronaviruses when properly diluted.

  • Alcohol solutions.
    Ensure solution has at least 70% alcohol.
  • Other common EPA-registered household disinfectants.
    Products with EPA-approved emerging viral pathogens pdf icon[7 pages]external icon claims are expected to be effective against COVID-19 based on data for harder to kill viruses. Follow the manufacturer’s instructions for all cleaning and disinfection products (e.g., concentration, application method and contact time, etc.).

Stigma and Resilience

Public health emergencies, such as the outbreak of coronavirus disease 2019 (COVID-19), are stressful times for people and communities. Fear and anxiety about a disease can lead to social stigma (1) toward people, places, or things. For example, stigma and discrimination can occur when people associate a disease, such as COVID-19, with a population or nationality, even though not everyone in that population or from that region is specifically at risk for the disease. Stigma can also occur after a person has been released from COVID-19 quarantine even though they are not considered a risk for spreading the virus to others.

Knowing and sharing Facts can help stop stigma

Some groups of people who may be experiencing stigma because of COVID-19 include:

  • Persons of Asian descent
  • People who have traveled
  • Emergency responders or healthcare professionals

Stigma hurts everyone by creating fear or anger towards other people.

Stigmatized groups may be subjected to:

  • Social avoidance or rejection
  • Denials of healthcare, education, housing or employment
  • Physical violence.
It is important to remember that people – including those of Asian descent – who do not live in or have not recently been in an area of ongoing spread of the virus that causes COVID-19, or have not been in contact with a person who is a confirmed or suspected case of COVID-19 are not at greater risk of spreading COVID-19 than other Americans.

Stigma affects the emotional or mental health (2) of stigmatized groups and the communities they live in. Stopping stigma is important to making communities and community members resilient (3). See resources on mental health and coping during COVID-19.

Everyone can help stop stigma related to COVID-19 by knowing the facts and sharing them with others in your community.

Communicators and public health officials can help counter stigma during the COVID-19 response.

  • Maintain privacy and confidentiality of those seeking healthcare and those who may be part of any contact investigation.
  • Quickly communicate the risk or lack of risk from associations with products, people, and places.
  • Raise awareness about COVID-19 without increasing fear.
  • Share accurate information about how the virus spreads.
  • Speak out against negative behaviors, including negative statements on social media about groups of people, or exclusion of people who pose no risk from regular activities.
  • Be cautious about the images that are shared. Make sure they do not reinforce stereotypes.
  • Engage with stigmatized groups in person and through media channels including news media and social media.
  • Thank healthcare workers and responders. People who have traveled to areas where the COVID-19 outbreak is happening to help have performed a valuable service to everyone by helping make sure this disease does not spread further.
  • Share the need for social support for people who have returned from China or are worried about friends or relatives in the affected region.

Key Terms

  1. Stigma occurs when people associate a risk with a specific people, place, or thing – like a minority population group – and there is no evidence that the risk is greater in that group than in the general population. Stigmatization is especially common in disease outbreaks. (https://emergency.cdc.gov/cerc/cerccorner/article_123016.asp)
  2. Resilience is the ability to withstand and recover from stress. (https://blogs.cdc.gov/publichealthmatters/2017/08/predicting-community-resilience-and-recovery-after-a-disaster/)
  3. Mental health is defined by the World Health Organization as a state of well being in which a person realizes his or her own abilities, can cope with normal stresses of life, can work productively and fruitfully, and is able to make a contribution to his or her community (https://www.who.int/news-room/fact-sheets/detail/mental-health-strengthening-our-responseexternal icon).

What To Do If You Become Sick?

What To Do If You Become Sick?

Follow the steps below:  If you are sick with COVID-19 or suspect you are infected with the virus that causes COVID-19, follow the steps below to help prevent the disease from spreading to people in your home and community.
man in bed

Stay home except to get medial care

  • Stay home: People who are mildly ill with COVID-19 are able to isolate at home during their illness. You should restrict activities outside your home, except for getting medical care.
  • Avoid public areas:Do not go to work, school, or public areas.
  • Avoid public transportation: Avoid using public transportation, ride-sharing, or taxis.
family separated

Separate yourself from other people and animals in your home

  • Stay away from others: As much as possible, you should stay in a specific room and away from other people in your home. Also, you should use a separate bathroom, if available.
  • Limit contact with pets & animals: You should restrict contact with pets and other animals while you are sick with COVID-19, just like you would around other people. Although there have not been reports of pets or other animals becoming sick with COVID-19, it is still recommended that people sick with COVID-19 limit contact with animals until more information is known about the virus.
  • When possible, have another member of your household care for your animals while you are sick. If you are sick with COVID-19, avoid contact with your pet, including petting, snuggling, being kissed or licked, and sharing food. If you must care for your pet or be around animals while you are sick, wash your hands before and after you interact with pets and wear a facemask.
on the phone with doctor

Call ahead before visiting your doctor

  • Call ahead: If you have a medical appointment, call the healthcare provider and tell them that you have or may have COVID-19. This will help the healthcare provider’s office take steps to keep other people from getting infected or exposed.
man wearing a mask

Wear a facemask if your sick

  • If you are sick: You should wear a facemask when you are around other people (e.g., sharing a room or vehicle) or pets and before you enter a healthcare provider’s office.
  • If you are caring for others: If the person who is sick is not able to wear a facemask (for example, because it causes trouble breathing), then people who live with the person who is sick should not stay in the same room with them, or they should wear a facemask if they enter a room with the person who is sick.
woman covering their mouth when coughing

Cover your coughs and sneezes

  • Cover: Cover your mouth and nose with a tissue when you cough or sneeze.
  • Dispose: Throw used tissues in a lined trash can.
  • Wash hands: Immediately wash your hands with soap and water for at least 20 seconds or, if soap and water are not available, clean your hands with an alcohol-based hand sanitizer that contains at least 60% alcohol.
washing hands

Clean your hands often

  • Wash hands: Wash your hands often with soap and water for at least 20 seconds, especially after blowing your nose, coughing, or sneezing; going to the bathroom; and before eating or preparing food.
  • Hand sanitizer: If soap and water are not readily available, use an alcohol-based hand sanitizer with at least 60% alcohol, covering all surfaces of your hands and rubbing them together until they feel dry.
  • Soap and water: Soap and water are the best option if hands are visibly dirty.
  • Avoid touching: Avoid touching your eyes, nose, and mouth with unwashed hands.
don't share

Avoid sharing personal household items

  • Do not share: You should not share dishes, drinking glasses, cups, eating utensils, towels, or bedding with other people or pets in your home.
  • Wash thoroughly after use: After using these items, they should be washed thoroughly with soap and water.
cleaning a counter

Clean all "high-touch" surfaces everyday

  • Clean and disinfect: Practice routine cleaning of high touch surfaces.
High touch surfaces include counters, tabletops, doorknobs, bathroom fixtures, toilets, phones, keyboards, tablets, and bedside tables.
  • Disinfect areas with bodily fluids: Also, clean any surfaces that may have blood, stool, or body fluids on them.
  • Household cleaners: Use a household cleaning spray or wipe, according to the label instructions. Labels contain instructions for safe and effective use of the cleaning product including precautions you should take when applying the product, such as wearing gloves and making sure you have good ventilation during use of the product.
taking temperature

Monitor your symptoms

  • Seek medical attention: Seek prompt medical attention if your illness is worsening (e.g., difficulty breathing).
  • Call your doctor: Before seeking care, call your healthcare provider and tell them that you have, or are being evaluated for, COVID-19.
  • Wear a facemask when sick: Put on a facemask before you enter the facility. These steps will help the healthcare provider’s office to keep other people in the office or waiting room from getting infected or exposed.
  • Alert health department: Ask your healthcare provider to call the local or state health department. Persons who are placed under active monitoring or facilitated self-monitoring should follow instructions provided by their local health department or occupational health professionals, as appropriate.
Call 911 if you have a medical emergency: If you have a medical emergency and need to call 911, notify the dispatch personnel that you have, or are being evaluated for COVID-19. If possible, put on a facemask before emergency medical services arrive.
father playing with his son

Discontinuing home isolation

  • Stay at home until instructed to leave: Patients with confirmed COVID-19 should remain under home isolation precautions until the risk of secondary transmission to others is thought to be low.
  • Talk to your healthcare provider: The decision to discontinue home isolation precautions should be made on a case-by-case basis, in consultation with healthcare providers and state and local health departments.

Footnote

1Fever may be subjective or confirmed

2Close contact is defined as—

  1. a) being within approximately 6 feet (2 meters) of a COVID-19 case for a prolonged period of time; close contact can occur while caring for, living with, visiting, or sharing a health care waiting area or room with a COVID-19 case

– or –

  1. b) having direct contact with infectious secretions of a COVID-19 case (e.g., being coughed on)

If such contact occurs while not wearing recommended personal protective equipment or PPE (e.g., gowns, gloves, NIOSH-certified disposable N95 respirator, eye protection), criteria for PUI consideration are met.

See CDC’s updated Interim Healthcare Infection Prevention and Control Recommendations for Persons Under Investigation for 2019 Novel Coronavirus.

Data to inform the definition of close contact are limited. Considerations when assessing close contact include the duration of exposure (e.g., longer exposure time likely increases exposure risk) and the clinical symptoms of the person with COVID-19 (e.g., coughing likely increases exposure risk as does exposure to a severely ill patient). Special consideration should be given to those exposed in health care settings.

Citation

“About Coronavirus Disease 2019 (COVID-19).” Centers for Disease Control and Prevention, Centers for Disease

Control and Prevention, 24 Feb. 2020, www.cdc.gov/coronavirus/2019-ncov/about/index.html.