Two mRNA vaccines from Pfizer and Moderna are nearing final approval, and both work by rewiring a genetic trigger. SARS-CoV-2, the virus that causes COVID-19 (coronavirus), has a unique physical structure that can be used to prime immune response. An mRNA vaccine has never been approved...
根据空前“its COVID-19 vaccine (疫苗) is safe”和下文“The news may lead to vaccinating (接种疫苗) that age group”可知,新冠疫苗很安全,最小12岁的儿童是可以接种的。结合单词首字母可知,这里考查protect,意为“保护”。该空与前面的“… is safe”并列,应用一般现在时第三人称单数形式。故填(p)...
The company expects Covid vaccines to provide a long tailwind. This year, Pfizer calls for $61 billion to $64 billion in sales. That includes similar to 2024 revenue from its Covid products: the vaccine called Comirnaty and the oral treatment, Paxlovid. One analyst called the guidance "ma...
Pfizersaid it had fully enrolled itsCovid-19vaccine trial in kids ages 12 to 15, a key step before the vaccine could be used in that age group. The study, an extension of the one used to support the company's Emergency Use Authorization of the vaccine in people 16 and...
Drugmaker said it could develop a vaccine for the Omicron variant in 100 days, but government clearance could take longer.
Both Pfizer’s vaccine and Moderna’suse messenger-RNA, ormRNA, technology, which uses genetic material to cause the body to create a protein from the virus; the immune system then recognizes the virus and learns to attack. Other vaccines in the late stages of developmen...
19 mRNA vaccine. This is particularly important in case of SARS-CoV-2- spike mRNA delivered by COVID-19 mRNA vaccines to the cytoplasm of cells in individuals infected with HIV or other retroviruses, a critical step that cannot be unequivocally pro...
Conclusions: There was no increased risk for acute cardiovascular events (excluding myocarditis) in the risk period compared to the control period following administration of the second dose of Pfizer COVID19 vaccine. Mortality data raised no concerns either, but may have been biased....
Table 2 European Medicines Agency safety data and less common mRNA COVID-19 vaccine AEFIs as at July 2022 [2,3,5] Full size table The risk of myocarditis, mostly affecting young men after receiving the second dose of the BNT162b2 vaccine (the main mRNA vaccine available at the time of ...
The extra immune firepower mRNA vaccines provide could also yield more durable protection. "We could probably generate a flu vaccine that could theoretically protect us for five years instead of just one," Pekosz says. Indeed, he believes the COVID-19vaccineeffort's success heralds a bright fut...