L4 viruses and disease

Question 1

what are the structures involved in a virus particle?

Answer 1

capsid
rna or dna
envelope
spike of viral protein

Question 2

What are the steps in attachment?

Answer 2

1-attach to virus
2-lock and key interaction with virus and host cell
3-enveloped viruses fuse with the membrane and the protein is inserted into the cell

Question 3

How can recent and past immunity be detected?

Answer 3

-detection of virus specific IgM antibodies
-detection of rising titre of IgG antibodies
-detection of very high titre of IgG antibodies
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Question 4

how are virals detected?

Answer 4

currently in use-PCR
antigen detection
-older-cell culture
-electron microscopy