Since its appearance, the British variant of nCoV B.1.1.7 has spread to at least 70 countries around the world, causing a sudden increase in the number of infections.
According to research by scientists, B.1.1.7 is 56% to 70% more transmissible than the old strain, causing a sudden increase in the number of positive cases.
Some evidence shows that patients infected with the B.1.1.7 variant have more nCoV in their bodies.
To date, the scientific community is still debating the argument `Can nCoV spread through the air?`.
The concern is that the smallest aerosol droplets can remain in the air for hours.
Americans wear masks when going out to avoid infection with nCoV.
Normally, the highest aerosol concentration is right next to the source of dispersion (people with Covid-19) and gradually decreases as you move away.
According to research by Cambridge University, published in the journal Proceedings of the Royal Society A, nCoV can spread even when a sick person just talks without coughing or sneezing.
In April 2020, scientists found nCoV in the air at Wuhan hospital.
`This highlights the importance of staying out of small spaces,` said Linsey Marr, professor of environment at Virginia Polytechnic Institute.
The nCoV B.1.1.7 variant was first recorded from the southeast of England.
According to a survey by the British Office for National Statistics, people infected with the new variant have more muscle pain, sore throat, fatigue and cough than before.
On February 3, scientists said that B.1.1.7 continued to change, adding a new mutation, E484K.
To prevent infection with variants, people need to fully apply the previous preventive measures.
The outbreak has been breaking out in Vietnam for the past 7 days, related to the epidemic areas of Hai Duong and Quang Ninh and then infecting 8 other provinces and cities, also due to infection with the British variant.