All vaccines in the 2022-2023 flu season were quadrivalent, meaning they targeted 4 strains of the flu, 2 type A flu viruses (H1N1 and H3N2) and 2 type B flu viruses (Victoria and Yamagata lineage) and were well-matched to the circulating viruses. Each year, flu viruses may mutate, mea...
Not only does a push for a chickenpox vaccine protect a child and his or her classmates, it can also protect grandparents who may not have had chickenpox. Protecting the elderly is also the idea behind another vaccination that many of us line up for each winter: the flu shot. Between 12,...
so they can never be 100 percent certain which strain will hit. According to Dr. Bradley, the live-attenuated (intranasal) flu vaccine is actually best at protecting against the flu, even when there's a mismatch. It provides broader protection because it's live and mimics...
的) getting a flu shot every year.” Are you protected? That shot is so much easier than getting one of these serious illnesses. 根据材料内容,选择正确的答案。 1. What are vaccines? A. Bacteria that can help us be active. B. Bacteria that can make us ill. C. Bacteria that can help...
Wellness How Vaccines Work Wellness How to Attack Viruses with Herbs, Spices and Food Life Science How Plague Works Wellness 9 Home Remedies for Coughs Diseases & Conditions What is the Flu? Advertisement How the Flu Works By: Stephanie Watson Staying Healthy Image Gallery Flu season is ...
B.Some Vaccines Last a Short TimeC.How Do Vaccines Work?D.How Are You Protected? 相关知识点: 试题来源: 解析 (1)细节理解题。根据第一段Vaccines(疫苗) help keep you healthy.How do vaccines help you keep healthy?The vaccines are made from microorganism(微生物) that causes the illness.(...
How Vaccines Work Life Science How AIDS Works By:Stephanie Watson Staying Healthy Image GalleryFlu season is upon us. Get health tips withstaying healthy pictures. Peter Dazeley/Photographer's Choice/Getty Images Every winter, like clockwork, the flu returns. It infects millions of us -...
Each year, pharmaceutical companies produce vaccines against the flu viruses predicted to be dominant during the upcoming fluseason. How well thevaccineworks varies from year to year because of how much the circulating flu viruses evolve between the time that the vaccine is produced and the beginnin...
1.B 第一 The vaccines are made from bacteria (细 ) that causes the illness. 知,疫苗是由致病细菌制成的。 2.D But this vaccine won't protect you once the bacteria has changed. That's why you'll have to get a new one before the flu season hits next year.可知,细 菌变了,疫苗就不...
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