最易发生变异而发生流行的influenza virus是( )。A、甲型流感病毒B、乙型流感病毒C、甲型和乙型流感病毒D、丙型流感病毒 相关知识点: 试题来源: 解析 A 甲型流感病毒(Influenza A virus)由于其宿主范围广泛(包括人类、禽类、猪等)和基因组的8个分节段RNA结构,容易通过抗原漂移(点突变)和抗原转变
❃❃❃❃❃❃❃❃❃❃❃❃❃❃❃❃❃❃❃❃❃❃❃❃ Influenza A/B Antigen Rapid Test (20PCS) 甲乙流感病毒抗原检测试剂 Influenza A/B Antigen Rapid Test 本品用于定性检测鼻咽拭子样本中...
Three types of flu viruses affect humans: types A, B, and C. Type A and B cause the annual influenza epidemics that have up to 20% of the population sniffling, aching, coughing, and running high fevers. Type C also causes flu, but its symptoms are much less severe. The last type o...
The influenza viruses are divided into the types A, B and C and show unique variability of their surface antigens (hemagglutinin and neuraminidase). Influenza viruses of type A show the largest degree of antigenic variation which, in turn, resulted in the definition of a number of subtypes, e...
流感病毒分为 A、B 和 C 型,其中 A 型和 B 型流感病毒可引起流行性感冒,C 型病毒引起的症状相对较轻。流感病毒在全球范围内传播迅速,每年都会导致大量人口感染。严重时,流感可能导致肺炎、急性呼吸窘迫综合症等并发症,对老年人和儿童等免疫力较低的人群具有较大危害。 接下来,我们来探讨一下“influenza”这个...
Influenza virus is member of the family of virusesOrthomyxoviridae. The four genera of influenza virus areinfluenza virus A, B, C, and D. The natural reservoir of influenza virus A (IAV) is a marine bird whereasinfluenza Bvirus (IBV) is mainly human pathogen. Influenza virus C and D exhib...
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Influenza is a single-stranded segmented negative-sense RNAgenome virusof the familyOrthomyxoviridae. There are three types of influenza viruses:influenza virus A,influenza virus B, and influenza virus C.Influenza Aand C infect multiple species, whileinfluenza Binfects humans almost exclusively. The ...
1. **选项A(细菌性)**:流感由流感病毒引起,而非细菌。细菌性呼吸道疾病如肺炎链球菌感染等,与流感病因不同,排除。2. **选项B(特发性)**:“特发性”指病因不明,但流感的病原体已明确为病毒,因此不符合。3. **选项C(病毒性)**:流感病毒是流感的明确病原体,属于病毒性感染疾病,此选项正确。4. **...
流行感冒 A kind of disease caused by a virus highly infectious. Influenza caused by different types of viruses, there are three known types of influenza: influenza A, B and C, which the alpha is more common. In Hong Kong are the two most common influenza A (H1N1 and H3N2)....