- 1 When was COVID-19 first reported?
- 2 Where was COVID-19 first discovered?
- 3 In what conditions does COVID-19 survive the longest?
- 4 How long should I self-quarantine if I have been exposed to COVID-19?
- 5 How long have coronaviruses existed?
- 6 What does COVID-19 stand for?
- 7 What causes COVID-19?
- 8 Can COVID-19 enter into the body by the hands?
- 9 How long does the virus that causes COVID-19 last on surfaces?
- 10 Can asymptomatic people transmit COVID-19?
- 11 How long should I exercise for during quarantine?
- 12 What is contact tracing for COVID-19?
When was COVID-19 first reported?
On this website you can find information and guidance from WHO regarding the current outbreak of coronavirus disease (COVID-19) that was first reported from Wuhan, China, on 31 December 2019.
Where was COVID-19 first discovered?
The first known infections from SARS-CoV-2 were discovered in Wuhan, China. The original source of viral transmission to humans remains unclear, as does whether the virus became pathogenic before or after the spillover event.
In what conditions does COVID-19 survive the longest?
Coronaviruses die very quickly when exposed to the UV light in sunlight. Like other enveloped viruses, SARS-CoV-2 survives longest when the temperature is at room temperature or lower, and when the relative humidity is low (<50%).
How long should I self-quarantine if I have been exposed to COVID-19?
Those who may have been exposed to someone with COVID-19 and those who have recently travelled to a country or region with the widespread transmission have been advised to self-quarantine for 14 days from the time of last possible exposure.
The most recent common ancestor (MRCA) of all coronaviruses is estimated to have existed as recently as 8000 BCE, although some models place the common ancestor as far back as 55 million years or more, implying long term coevolution with bat and avian species.
What does COVID-19 stand for?
‘CO’ stands for corona, ‘VI’ for virus, and ‘D’ for disease. Formerly, this disease was referred to as ‘2019 novel coronavirus’ or ‘2019-nCoV.’ The COVID-19 virus is a new virus linked to the same family of viruses as Severe Acute Respiratory Syndrome (SARS) and some types of common cold.
What causes COVID-19?
COVID-19 is caused by infection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus strain.
Can COVID-19 enter into the body by the hands?
Hands touch too many surfaces and can quickly pick up viruses. Once contaminated, hands can transfer the virus to your face, from where the virus can move inside your body, making you feel unwell.
How long does the virus that causes COVID-19 last on surfaces?
Recent research evaluated the survival of the COVID-19 virus on different surfaces and reported that the virus can remain viable for up to 72 hours on plastic and stainless steel, up to four hours on copper, and up to 24 hours on cardboard.
Can asymptomatic people transmit COVID-19?
Yes, infected people can transmit the virus both when they have symptoms and when they don’t have symptoms. This is why it is important that all people who are infected are identified by testing, isolated, and, depending on the severity of their disease, receive medical care.
How long should I exercise for during quarantine?
Physical activity and relaxation techniques can be valuable tools to help you remain calm and continue to protect your health during this time. WHO recommends 150 minutes of moderate-intensity or 75 minutes of vigorous-intensity physical activity per week, or a combination of both.
What is contact tracing for COVID-19?
contact tracing is the process of identifying all people that a COVID-19 patient has come in contact with in the last two weeks.