Coronavirus illness 2019 (COVID-19)




Coronavirus is a household of viruses that may trigger respiratory diseases such because the widespread chilly, extreme acute respiratory syndrome (SARS) and Center East respiratory syndrome (MERS).

Coronaviruses are a household of viruses that may trigger diseases such because the widespread chilly, extreme acute respiratory syndrome (SARS) and Center East respiratory syndrome (MERS). In 2019, a brand new coronavirus was recognized as the reason for a illness outbreak that originated in China.

The virus is now referred to as the extreme acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The illness it causes is known as coronavirus illness 2019 (COVID-19). In March 2020, the World Well being Group (WHO) declared the COVID-19 outbreak a pandemic.

Public well being teams, together with the U.S. Facilities for Illness Management and Prevention (CDC) and WHO, are monitoring the pandemic and posting updates on their web sites. These teams have additionally issued suggestions for stopping and treating the sickness.


Indicators and signs of coronavirus illness 2019 (COVID-19) might seem two to 14 days after publicity. This time after publicity and earlier than having signs is known as the incubation interval. Frequent indicators and signs can embody:

Early signs of COVID-19 might embody a lack of style or scent.

Different signs can embody:

  • Shortness of breath or issue respiratory
  • Muscle aches
  • Chills
  • Sore throat
  • Runny nostril
  • Headache
  • Chest ache
  • Pink eye (conjunctivitis)

This checklist is just not all inclusive. Different much less widespread signs have been reported, resembling rash, nausea, vomiting and diarrhea. Youngsters have comparable signs to adults and usually have gentle sickness.

The severity of COVID-19 signs can vary from very gentle to extreme. Some folks might have only some signs, and a few folks might haven’t any signs in any respect. Some folks might expertise worsened signs, resembling worsened shortness of breath and pneumonia, a few week after signs begin.

People who find themselves older have a better danger of significant sickness from COVID-19, and the chance will increase with age. Individuals who have current continual medical situations additionally might have a better danger of significant sickness. Sure medical situations that improve the chance of significant sickness from COVID-19 embody:

  • Severe coronary heart illnesses, resembling coronary heart failure, coronary artery illness or cardiomyopathy
  • Most cancers
  • Persistent obstructive pulmonary illness (COPD)
  • Sort 2 diabetes
  • Weight problems or extreme weight problems
  • Smoking
  • Persistent kidney illness
  • Sickle cell illness
  • Weakened immune system from stable organ transplants
  • Being pregnant

Different situations might improve the chance of significant sickness, resembling:

  • Bronchial asthma
  • Liver illness
  • Obese
  • Persistent lung illnesses resembling cystic fibrosis or pulmonary fibrosis
  • Mind and nervous system situations
  • Weakened immune system from bone marrow transplant, HIV or some medicines
  • Sort 1 diabetes
  • Hypertension

This checklist is just not all inclusive. Different underlying medical situations might improve your danger of significant sickness from COVID-19.

COVID-19 self-checker

Assess your signs on CDC’s coronavirus self-checker software and discover out should you’re a candidate for a COVID-19 check.

When to see a physician

If in case you have COVID-19 signs otherwise you’ve been involved with somebody identified with COVID-19, contact your physician or clinic straight away for medical recommendation. Inform your well being care crew about your signs and potential publicity earlier than you go to your appointment.

If in case you have emergency COVID-19 indicators and signs, search care instantly. Emergency indicators and signs can embody:

  • Hassle respiratory
  • Persistent chest ache or strain
  • Incapability to remain awake
  • New confusion
  • Blue lips or face

If in case you have indicators or signs of COVID-19, contact your physician or clinic for steering. Let your physician know in case you have different continual medical situations, resembling coronary heart illness or lung illness. Throughout the pandemic, it is necessary to verify well being care is obtainable for these in biggest want.


An infection with the brand new coronavirus (extreme acute respiratory syndrome coronavirus 2, or SARS-CoV-2) causes coronavirus illness 2019 (COVID-19).

The virus that causes COVID-19 spreads simply amongst folks, and extra continues to be found over time about the way it spreads. Information has proven that it spreads primarily from individual to individual amongst these in shut contact (inside about 6 ft, or 2 meters). The virus spreads by respiratory droplets launched when somebody with the virus coughs, sneezes, breathes, sings or talks. These droplets will be inhaled or land within the mouth, nostril or eyes of an individual close by.

In some conditions, the COVID-19 virus can unfold by an individual being uncovered to small droplets or aerosols that keep within the air for a number of minutes or hours — known as airborne transmission. It isn’t but recognized how widespread it’s for the virus to unfold this fashion.

It may additionally unfold if an individual touches a floor or object with the virus on it after which touches his or her mouth, nostril or eyes, though this is not thought-about to be a most important manner it spreads.

Some reinfections of the virus that causes COVID-19 have occurred, however these have been unusual.

Threat elements

Threat elements for COVID-19 seem to incorporate:

  • Shut contact (inside 6 ft, or 2 meters) with somebody who has COVID-19
  • Being coughed or sneezed on by an contaminated individual


Though most individuals with COVID-19 have gentle to average signs, the illness could cause extreme medical issues and result in dying in some folks. Older adults or folks with current continual medical situations are at better danger of turning into critically in poor health with COVID-19.

Problems can embody:

  • Pneumonia and hassle respiratory
  • Organ failure in a number of organs
  • Coronary heart issues
  • A extreme lung situation that causes a low quantity of oxygen to undergo your bloodstream to your organs (acute respiratory misery syndrome)
  • Blood clots
  • Acute kidney harm
  • Extra viral and bacterial infections


The U.S. Meals and Drug Administration (FDA) has given emergency use authorization for 2 COVID-19 vaccines, the Pfizer/BioNTech COVID-19 vaccine and the Moderna COVID-19 vaccine. A vaccine may stop you from getting COVID-19 or stop you from turning into critically in poor health from COVID-19 should you get the COVID-19 virus. You may take further steps to scale back your danger of an infection. WHO and CDC suggest following these precautions for avoiding publicity to the virus that causes COVID-19:

  • Keep away from shut contact (inside about 6 ft, or 2 meters) with anybody who’s sick or has signs.
  • Maintain distance between your self and others (inside about 6 ft, or 2 meters). That is particularly necessary in case you have a better danger of significant sickness. Take note some folks might have COVID-19 and unfold it to others, even when they do not have signs or do not know they’ve COVID-19.
  • Wash your palms typically with cleaning soap and water for at the very least 20 seconds, or use an alcohol-based hand sanitizer that accommodates at the very least 60% alcohol.
  • Cowl your face with a material face masks in public areas, such because the grocery retailer, the place it is troublesome to keep away from shut contact with others. Surgical masks could also be used if out there. N95 respirators ought to be reserved for well being care suppliers.
  • Cowl your mouth and nostril together with your elbow or a tissue while you cough or sneeze. Throw away the used tissue. Wash your palms straight away.
  • Keep away from touching your eyes, nostril and mouth.
  • Keep away from sharing dishes, glasses, towels, bedding and different home items should you’re sick.
  • Clear and disinfect high-touch surfaces, resembling doorknobs, mild switches, electronics and counters, day by day.
  • Keep residence from work, faculty and public areas should you’re sick, except you are going to get medical care. Keep away from public transportation, taxis and ride-sharing should you’re sick.

If in case you have a continual medical situation and should have a better danger of significant sickness, test together with your physician about different methods to guard your self.


In the event you’re planning to journey, first test the CDC and WHO web sites for updates and recommendation. Be ready to put on a masks and use acceptable hand hygiene when in public. You may additionally need to speak together with your physician in case you have well being situations that make you extra inclined to respiratory infections and issues.

Extra Data

Dec. 22, 2020


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