COVID-19 Vaccine Is Effective in Inflammatory Bowel Disease Patients and Is Not Associated With Disease Exacerbation - ScienceDirectRaffi Lev-TzionGili FochtRona LujanAdi MendeloviciChagit FrissShira GreenfeldRevital KarivAmir Ben-Tov §Eran Matz ‖...
【答案】B 【详解】 句意:由于COVID-19仍在迅速传播,接种疫苗是非常必要的。 考查连词辨析。before 在...以前, 引导时间状语从句;since 由于,引导原因状语从句; although 尽管,引导让步状语从句;unless 除非,引导条件状语从句。分析语境可知,前半 句是一个原因状语从句,空处表示“由于” 。 故选B。 反馈 收藏...
On the other hand, by late fall the major variants may have changed, rendering the vaccine less effective, said Peter Marks, the FDA's top vaccine official, at a briefing Aug. 23. He urged everyone eligible to get immunized, noting that the risk of long covid is grea...
transient and not serious, and serious side effects are rare. The benefits of the vaccine outweigh the risks and the safety of vaccines is very closely monitored and assessed. The COVID-19 Vaccine when approved for use in the UK by the MHRA is safe and effective for use in the public...
AstraZeneca’s Virus Vaccine Is 70% Effective More VINCENZO PINTO|AFP via Getty Images A technician supervises during filling and packaging tests for the large-scale production of Oxford's COVID-19 vaccine candidate. AstraZeneca said Monday that its potential coronavirus vaccine is, ...
"There was a more than 60 percent reduction in the proportion who had virus on Day 28 if they got the vaccine, rather than a placebo, on Day Zero." If anything, the effect was even larger, he added.
A COVID-19 vaccine candidate was 90 percent effective at protecting people from the coronavirus, manufacturers Pfizer and BioNTech said on Monday. The Food and Drug Administration (FDA) previously said it would require any vaccine to be at least 50 percent effective in order to be approved. “...
解析 B 句意:由于新型冠状病毒仍在快速传播,接种疫苗是非常必要的。before在……之前;since由于;although尽管;unless除非。根据“ the COVID-19 is still spreading rapidly, getting a vaccine(疫苗) is quite necessary”可知,“新型冠状病毒仍在快速传播”是接种疫苗的原因,用since引导原因状语从句,故选B。
In the case of a COVID-19 vaccine, this is a race that the whole world will win, or the whole world is winning now, because science is advanced, and that's producing vaccines that the whole world will benefit from. Yes, the actual physical vaccine, that's s...
The timing of influenza vaccine production and distribution is unpredictable, thus the availability of the flu vaccine supply does not always coincide with(与……一致)peak demand.”(但是,即使研制出疫苗,也很难获得疫苗,因为疫苗的需求量很大,而且供不应求。流感疫苗生产和分发的时间是不可预测的,因此...