Exercício 11760237

Considere o texto abaixo para responder à questão. Knowns and unknowns By Ariana Eunjung Cha August 28, 2021 The fourth wave of the coronavirus is hitting children and families faster and harder than before, raising new questions for doctors and researchers. In Southern states, in the US, pediatric Intensive Care Units (ICUs) are at capacity with record numbers of severely ill children. They include newborns just weeks or months old and previously healthy children — almost unheard of in previous waves — reinforcing the idea that this is a virus that can strike anyone. Doctors are also speculating about anecdotal reports of unvaccinated young parents getting seriously ill, and what that might say about transmission in families. In Arkansas just outside Little Rock, Tate Ezzi, 44, and his pregnant wife, Christine, 39, parents to five young children, have been urging the vaccine-wary to revaluate their stance since both were hospitalized and she lost the pregnancy after attending a birthday party at a skating rink. There is still a lot of controversy about how children are getting covid because there is no basic and reliable data. One early paper, published in August 2020 in the Journal of Pediatrics, found that the viral load of some children in the first two days of symptoms could be higher than in severely ill adults, implying a high degree of potential infectiousness. Another found that the virus was detectable for a mean of 6.7 days in infected children — regardless of whether they had symptoms. More recently, researchers found that people are testing positive for the delta variant at a peak of 3.71 days after exposure, as compared with five to six days for previous variants — showing the illness can hit very quickly. (Adapted from https://www.washingtonpost.com) Segundo o texto, (A) a quarta onda do coronavírus está afetando recém-nascidos e crianças que eram imunes às variantes anteriores. (B) nos estados do sul dos Estados Unidos as UTIs chegaram a sua capacidade máxima, recebendo um número recorde de crianças gravemente infectadas. (C) a campanha pela vacinação em que o casal de Arkansas está empenhado foi motivada pela infecção que sofreram apesar de vacinados. (D) um estudo recente constatou que a carga viral em crianças sintomáticas é extremamente alta nos dois primeiros dias, o que explica a rapidez com que infectam as pessoas com quem convivem. (E) pesquisadores também observaram que a variante delta pode ser detectada rapidamente em crianças enquanto adultos só testam positivo após uma média de 6.7 dias.