COVID-19

Extracted Attributes

• Cause

  SARS-CoV-2 coronavirus

• Common Symptoms

  Fever, fatigue, cough, breathing difficulties, loss of smell, and loss of taste

• Contagious Period

  Up to 20 days

• Incubation Period

  1 to 14 days (typically 5 to 6 days)

• Medical Specialty

  Infectious disease

• Diagnostic Methods

  RT-PCR, transcription-mediated amplification, RT-LAMP, and rapid antigen tests

• First Case Location

  Wuhan, China

• Prevention Measures

  Vaccination, physical distancing, mask-wearing, hand hygiene, and ventilation

Timeline

• The first known case of COVID-19 is identified in Wuhan, China. (Source: Wikipedia)

  2019-12-01

• The disease spreads worldwide, resulting in the official start of the COVID-19 pandemic. (Source: Wikipedia)

  2020-01-01

• CDC provides updated general information defining COVID-19 and its contagious nature. (Source: CDC Web Search)

  2024-06-14

• CDC releases updated guidance on Long COVID basics and risk factors. (Source: CDC Web Search)

  2024-06-24

• CDC updates recommendations on how to protect yourself and others from the virus. (Source: CDC Web Search)

  2024-09-05

• CDC publishes updated information regarding COVID-19 reinfection and why it occurs. (Source: CDC Web Search)

  2024-12-17

COVID-19

Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. In January 2020, the disease spread worldwide, resulting in the COVID-19 pandemic. The symptoms of COVID‑19 can vary but often include fever, fatigue, cough, breathing difficulties, loss of smell, and loss of taste. Symptoms may begin one to 14 days after exposure to the virus. At least a third of people who are infected do not develop noticeable symptoms. Of those who develop symptoms noticeable enough to be classified as patients, most (81%) develop mild to moderate symptoms (up to mild pneumonia), while 14% develop severe symptoms (dyspnea, hypoxia, or more than 50% lung involvement on imaging), and 5% develop critical symptoms (respiratory failure, shock, or multiorgan dysfunction). Older people have a higher risk of developing severe symptoms. Some complications result in death. Some people continue to experience a range of effects (long COVID) for months or years after infection, and damage to organs has been observed. Multi-year studies on the long-term effects are ongoing. COVID‑19 transmission occurs when infectious particles are breathed in or come into contact with the eyes, nose, or mouth. The risk is highest when people are in close proximity, but small airborne particles containing the virus can remain suspended in the air and travel over longer distances, particularly indoors. Transmission can also occur when people touch their eyes, nose, or mouth after touching surfaces or objects that have been contaminated by the virus. People remain contagious for up to 20 days and can spread the virus even if they do not develop symptoms. Testing methods for COVID-19 to detect the virus's nucleic acid include real-time reverse transcription polymerase chain reaction (RT‑PCR), transcription-mediated amplification, and reverse transcription loop-mediated isothermal amplification (RT‑LAMP) from a nasopharyngeal swab. Several COVID-19 vaccines have been approved and distributed in various countries, many of which have initiated mass vaccination campaigns. Other preventive measures include physical or social distancing, quarantining, ventilation of indoor spaces, use of face masks or coverings in public, covering coughs and sneezes, hand washing, and keeping unwashed hands away from the face. While drugs have been developed to inhibit the virus, the primary treatment is still symptomatic, managing the disease through supportive care, isolation, and experimental measures. The first known case was identified in Wuhan, China, in December 2019. Most scientists believe that the SARS-CoV-2 virus entered into human populations through natural zoonosis, similar to the SARS-CoV-1 and MERS-CoV outbreaks, and consistent with other pandemics in human history. Social and environmental factors including climate change, natural ecosystem destruction and wildlife trade increased the likelihood of such zoonotic spillover.

Web Search Results

• COVID-19 - Wikipedia

  Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. In January 2020, the disease spread worldwide, resulting in the COVID-19 pandemic. [...] Several COVID-19 vaccines have been approved and distributed in various countries, many of which have initiated mass vaccination campaigns. Other preventive measures include physical or social distancing, quarantining, ventilation of indoor spaces, use of face masks or coverings in public, covering coughs and sneezes, hand washing, and keeping unwashed hands away from the face. While drugs have been developed to inhibit the virus, the primary treatment is still symptomatic, managing the disease through supportive care, isolation "Isolation (health care)"), and experimental measures. [...] | Other names | COVID, (the) coronavirus | | Transmission and life-cycle of SARS-CoV-2, which causes COVID-19 | | Pronunciation | + /kəˈroʊnəvaɪrəs/ + /ˌkoʊvɪdnaɪnˈtiːn, ˌkɒvɪd-/ | | Specialty | Infectious disease "Infectious disease (medical specialty)") | | Symptoms | Fever, cough, fatigue, shortness of breath, vomiting, loss of taste or smell; some cases asymptomatic | | Complications "Complication (medicine)") | Pneumonia, sepsis, ARDS, kidney failure, respiratory failure, pulmonary fibrosis, CKS, MIS-C, long COVID, brain damage | | Usual onset | 2–14 days (typically 5) after infection | | Duration | 5 days to chronic | | Causes "Cause (medicine)") | SARS-CoV-2 | | Diagnostic method | RT‑PCR testing, CT scan, rapid antigen test |

• Coronavirus Disease 2019 (COVID-19) - CDC

  June 24, 2024 Image 8: Young mother comforts her two young daughters while seated on a couch. Long COVID Basics Describes the basics of Long COVID, including who is at risk and steps to help prevent it Dec. 17, 2024 Image 9: Healthcare provider taking nasal swab test of patient in clinic What is COVID-19 Reinfection? Know why COVID-19 infection can reoccur. June 14, 2024 Covid COVID-19 (coronavirus disease 2019) is a disease caused by a virus named SARS-CoV-2. It can be very contagious and spreads quickly. View All ### For Everyone About COVID-19 Symptoms People with Certain Medical Conditions and COVID-19 COVID-19 Vaccines Testing Treatment How to Protect Yourself and Others Tools and Resources ### Health Care Providers [...] Public Health Surveillance and Data Analytics Safety Precautions: Cleaning and Disinfecting for COVID-19 SARS-CoV-2 Laboratory Biosafety Guidelines Antibody Seroprevalence CDC's Role in Tracking Variants SARS-CoV-2 Interagency Group View AllHome Covid About COVID-19SymptomsPeople with Certain Medical Conditions and COVID-19COVID-19 VaccinesTestingTreatmentHow to Protect Yourself and OthersTools and ResourcesView Menu Coronavirus Disease 2019 (COVID-19) Español Español Image 6: Three older friends, one man and two women, playing cards together and smiling. Staying Up to Date People who are up to date with their COVID-19 vaccine have lower risk of severe illness. Learn More Sept. 5, 2024 How to Protect Yourself and Others [...] Image 5: Centers for Disease Control and Prevention. CDC twenty four seven. Saving Lives, Protecting People _search_ clear search Covid Menu clear search For Everyone About COVID-19 Symptoms People with Certain Medical Conditions and COVID-19 COVID-19 Vaccines Testing Treatment How to Protect Yourself and Others Tools and Resources View AllHome Health Care Providers Interim Clinical Considerations Vaccine Product Information Clinical Care Quick Reference Infection Control Guidance Containing COVID-19 in Non-U.S. Healthcare Settings View AllHome Public Health

• Coronavirus Disease (COVID-19): Symptoms & Treatment

  Some people have no symptoms but can still spread the virus. ### COVID causes SARS-CoV-2 virus causes COVID. It’s a type of coronavirus, a group of viruses that also cause common colds. But this isn’t the first time a coronavirus has caused serious illness. SARS, a severe respiratory disease that spread between 2002 and 2004, was also a coronavirus. Advertisement COVID spreads through respiratory droplets. This means you can get it from coughing, sneezing and talking. You might also get it from touching contaminated objects and surfaces. #### Risk factors You’re at an increased risk of being hospitalized with COVID-19 if you: Are over 65 Are pregnant Smoke or used to smoke Have received a solid organ or stem cell transplant You’re also at an increased risk if you have: [...] Abu Dhabi|Canada|Florida|London|Nevada|Ohio| 855.733.3712|MyChart|Need Help?|Careers|Donate Now| Find a ProviderLocations and DirectionsServicesPatients and VisitorsHealth Library Find a Provider Locations and Directions Services Patients and Visitors Health Library Home/ Health Library/ Diseases & Conditions/ COVID-19 (Coronavirus) Advertisement Advertisement # COVID-19 (Coronavirus) COVID-19 is an illness caused by the SARS-CoV-2 virus. It spreads through respiratory droplets. Symptoms include fever, cough, shortness of breath, runny or stuffy nose, body aches and more. COVID can cause mild to severe illness. Early treatment with antiviral medications can reduce your symptoms and your risk for severe illness. Advertisement

• Coronavirus disease 2019 (COVID-19) - Symptoms and causes

  How well do face masks protect against COVID-19? Is hydroxychloroquine a treatment for COVID-19? Long-term effects of COVID-19 Mayo Clinic Minute: How dirty are common surfaces? Mayo Clinic Minute: You're washing your hands all wrong Pregnancy and COVID-19 Safe outdoor activities during the COVID-19 pandemic Safety tips for attending school during COVID-19 Sex and COVID-19 Treating COVID-19 at home Unusual symptoms of coronavirus [...] Coronavirus Coronavirus infection by race COVID-19 and pets COVID-19 and vitamin D COVID-19 and your mental health COVID-19 drugs: Are there any that work? COVID-19 in babies and children COVID-19 travel advice COVID-19 vaccines COVID-19 vaccines for kids: What you need to know COVID-19 variant COVID-19 vs. flu: Similarities and differences COVID-19, cold, allergies and the flu COVID-19: How can I protect myself? COVID-19: Who's at higher risk of serious symptoms? Debunking coronavirus myths Different COVID-19 vaccines Fight coronavirus (COVID-19) transmission at home Herd immunity and coronavirus How do COVID-19 antibody tests differ from diagnostic tests? How well do face masks protect against COVID-19? [...] It's possible to get COVID-19 more than once. Over time, the body's defense against the COVID-19 virus can fade. A person may be exposed to so much of the virus that it breaks through the immune defense. As a virus infects a group of people, the virus copies itself. During this process, the genetic code can randomly change in each copy. The changes are called mutations. If the coronavirus that causes COVID-19 changes in ways that make previous infections or vaccination less effective at preventing infection, people can get sick again. The virus that causes COVID-19 can infect some pets. Cats, dogs, hamsters and ferrets have caught this coronavirus and had symptoms. It's rare for a person to get COVID-19 from a pet. Risk factors The main risk factors for COVID-19 are:

• Coronavirus disease (COVID-19) - World Health Organization (WHO)

  The best way to prevent and slow down transmission is to be well informed about the disease and how the virus spreads. Protect yourself and others from infection by staying at least 1 metre apart from others, wearing a properly fitted mask, and washing your hands or using an alcohol-based rub frequently. Get vaccinated when it’s your turn and follow local guidance. The virus can spread from an infected person’s mouth or nose in small liquid particles when they cough, sneeze, speak, sing or breathe. These particles range from larger respiratory droplets to smaller aerosols. It is important to practice respiratory etiquette, for example by coughing into a flexed elbow, and to stay home and self-isolate until you recover if you feel unwell. Stay informed: [...] Most people infected with the virus will experience mild to moderate respiratory illness and recover without requiring special treatment. However, some will become seriously ill and require medical attention. Older people and those with underlying medical conditions like cardiovascular disease, diabetes, chronic respiratory disease, or cancer are more likely to develop serious illness. Anyone can get sick with COVID-19 and become seriously ill or die at any age. [...] On average it takes 5–6 days from when someone is infected with the virus for symptoms to show, however it can take up to 14 days. Fact sheets Coronavirus disease (COVID-19)) Post COVID-19 condition (long COVID)) Questions and answers Q&As on COVID-19 and related health topics Databases and tools WHO Coronavirus (COVID-19) Dashboard COVID-19 Clinical Care Pathway COVID-19 Impact on nutrition analytical framework COVID-19 Vaccine delivery toolkit Global Clinical Platform for COVID-19 Emergency situations Coronavirus disease (COVID-19) pandemic Initiatives and groups

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