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Growing Viruses Viruses must be grown in living cells

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Presentation on theme: "Growing Viruses Viruses must be grown in living cells"— Presentation transcript:

1 Growing Viruses Viruses must be grown in living cells
7 Viruses must be grown in living cells Bacteriophages form plaques on a lawn of bacteria p. 377 Figure 13.6

2 Growing Viruses 8 Animal viruses may be grown in living animals or in embryonated eggs p. 377 Figure 13.7

3 Virus Identification 9 Cytopathic effects: Detectable changes in the host cell due to viral infection (p. 441) Blood serum (serology) tests Detect antibodies against viruses in a patient Use antibodies to identify viruses in neutralization tests, viral hemagglutination, and Western blot Nucleic acids: Studies of the DNA/RNA

4 Virus Identification: Cytopathic Effect
10 p. 378 a) Uninfected cells growing in a monolayer b) Infected cells piling/rounding up Figure 13.9

5 Attachment, Entry, Uncoating
14 By pinocytosis Fig a Animal viruses p. 384 Togavirus: Example Rubella virus Figure 13.14a

6 Attachment, Entry, Uncoating
15 By fusion Fig b Animal viruses p. 384 Figure 13.14b

7 Multiplication of DNA Virus
16 Fig Foundation Figure p. 387 Animal DNA viruses Figure 13.15

8 Sense Strand (+ Strand) RNA Virus
17 Fig a p. 388 Animal RNA viruses Figure 13.17a

9 Antisense Strand (– Strand) RNA Virus
18 Fig b p. 388 Animal RNA viruses Figure 13.17b

10 Double-Stranded RNA Virus
19 Fig c p. 388 Animal RNA viruses Figure 13.17c

11 22 p. 384

12 Avian Influenza Clinical Focus, p. 371


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