By analysing the genomes - or genetic 'map' - of the first 160 cases diagnosed in humans around the world, the researchers have mapped how the virus spread. They have also discovered there are three distinct family trees of COVID-19, a discovery which could ...
How long can you spread COVID-19 after testing positive? People with COVID-19 can spread the virus to other people for 10 days after they develop symptoms, or 10 days from the date of their positive test if they do not have symptoms. The person with COVID-19 and all members of the ...
How long do COVID-19 symptoms take to show? 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. Can dogs and other pets get COVID-19? The virus that causes COVID-19 can spread from people to pets,...
The virus most often spreads through people who have symptoms. But it is possible to pass it on without showing any signs. Some people who don't know they've been infected and never develop symptoms can give COVID-19 to others. This is called asymptomatic spread. You can also pass it o...
How long does COVID stay in the air? Research shows that the virus can live in the air for up to 3 hours. Community spread Sometimes, a person can trace how they got the virus because they know that they've been in contact with someone who's sick. In other cases, the cause is un...
OK, I’ll reveal the answer at the end of the program. 好的,我会在节目结束时揭晓答案。 Of course, the idea that the pandemic might not be ending isn’t something people want to hear. 当然,疫情可能不会结束的说法并不是人们想听到的。 Most people are sick of worrying about Covid and ...
Can you be reinfected? It's too early to know if someone infected with COVID-19 can get it again. On the basis of what we understand about other coronaviruses, it is likely that infection will give you long-term immunity. But it's unclear whether that will mean one year, two years...
Alice, Bob, Cindy, and Frank meet on July 3, 2020. Over the preceding week, on average 184,617 new Covid-19 infections per day have been reported worldwide, a 13% increase over the previous week. In the U.S., the corresponding increase has been 39%. The Fourth of July national ...
care or can't afford it. Having a low income or not being able to get enough rest during the first few weeks of having COVID-19 also seems to raise the risk of getting long COVID, according to some studies. Some people with disabilities are also more likely to get long COVID. ...
care or can't afford it. Having a low income or not being able to get enough rest during the first few weeks of having COVID-19 also seems to raise the risk of getting long COVID, according to some studies. Some people with disabilities are also more likely to get long COVID. ...