ALGUEM ME AJUDA POR FAVOR NESSA ATIVIDADE DE INGLÊS? PRECISO COLOCAR AS PALAVRAS NO NUMUERO CORRETO WHAT
ALGUEM ME AJUDA POR FAVOR NESSA ATIVIDADE DE INGLÊS? PRECISO COLOCAR AS PALAVRAS NO NUMUERO CORRETOWHAT DO we know about the new coronavirus?
(PALAVRAS:)
cell
colds
cough
droplets
epidemic
genetic
hosts
illness
influenza
lethal
mutations
nose
pandemic
parasite
respiratory
survival
survive
transmissible
throat
virus
(TEXTO:)
A spiky, round or elliptical juggernaut, measuring from 60 to 140 billionths of a meter across, has turned the world upside down in just a few weeks. What is it?
The 1)belongs to the family Coronaviridae, which are RNA viruses with relatively large genomes. The SARS-Cov-2 virus has 29,891 nucleotides. That’s twice as large as an 2)virus genome. What’s more, the coronavirus family undergoes relatively rapid 3)“recombination” in nature, including 4)that enable the virus to adapt to new 5)and environmental niches. In this case, the genetic blueprint probably came initially from nature, perhaps from bats.
A cousin of this virus is SARS-Cov-1, which caused an 6)of severe acute 7) syndrome in 2002 and 2003 that began in China and ended with 774 deaths in 17 countries. The genetic material in the current virus is an 82 percent match for the earlier SARS virus. Another type of coronavirus found in bats is an 89 percent match for the current virus. Not every mutation changes behavior, but even a minuscule change in the genetic makeup may have given the current virus the characteristics that allowed it to 8), thrive and unleash the current 9).
The virus is an opportunistic 10)with a singular mission: dock on the surface of a 11) using its exterior spikes, then penetrate and hijack the cell to replicate, creating millions more copies of the virus with its genetic code. In the coronavirus family, some strains cause only minor 12) such as common 13) and, in others, disease more serious than covid-19. Two related viruses, the one causing SARS and the one causing Middle East respiratory syndrome, or MERS, are more 14) , but the current virus is more 15) , lodging in the upper respiratory tract, the 16) and 17) , where it is easily expelled by a 18) . Another characteristic accelerating transmission is that an infected person can be contagious several days before any symptoms show up. A cough or sneeze expels virus particles in aerosol 19) , which can remain in the air for hours. Also, there’s evidence of 20) on plastic and stainless steel for up to 72 hours. The current virus leads to acute respiratory distress in some people, filling lungs with fluid, constricting their ability to breathe, especially those who are already suffering another malady.
The virus is not invincible. It is sensitive to ultraviolet rays and heat, and hand-washing works. Biomedical researchers are racing to discover therapies to stop it from infecting people, perhaps with an antiviral drug that would disable those exterior spikes, or a vaccine that would instruct the human immune system to attack it. Hopefully, we can bend the curve slightly in favor of people and stop the pandemic. But even if science triumphs this time, genetic recombination and mutation will go on.
The Washington Post, 3/22/2020.
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1- Virus
2-Influenza
3-Genetic
4-Mutations
5-Hosts
6- Epidemic
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