62. Which of the following is not true of influenza viruses? A. family Orthomyxo

Question

62. Which of the following is not true of influenza viruses? A. family Orthomyxoviridae, SS RNA, - strand, with multiple RNA strands B. H mediates attachment to host receptors, N is involved in replication &release; C. influenza viruses are enveloped making hand disinfection easily possible. D. influenza vaccines commonly consist of a mixture of attenuated "live" viruses grown in adult chicken E. The 201 7/2018 influenza vaccine reportedly has been perhaps 36% effective in the US, but much less effective in the southern hemisphere.

Explanation / Answer

Option D

Influenza vaccine are generally 2 types the eyes are inactivated vaccine where the virus is killed and the second is attenuated vaccine or live vaccine but they are usually made from chicken egg. The virus is infected into the egg and it is incubated so that virus grows in it, later the fluid from the egg is taken for making vaccine.

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