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Objectives: ,[object Object],[object Object],[object Object],[object Object]
VIRUSES * One of the smallest forms of microorganisms and infects other forms of live: Animal --- Plants --- Bacteria * They can cause oral and orofacial disease - - produces oral signs of systemic infection and transmitted to patients and dental staff
Main Features: * Small size (10-100nm). * Genome: either DNA or RNA but never both- ss (single strand) or ds (double strand), linear or circular. * Metabolic activity: Obligate intracellular parasites.
Structure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Viral Nucleic acid ,[object Object],[object Object],[object Object]
Viral Protein ,[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object]
Taxonomy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
DNA viruses ,[object Object],[object Object],[object Object],[object Object]
DNA viruses ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
DNA viruses ,[object Object],[object Object]
Structure of Herpesviruses ,[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object]
 
[object Object],[object Object],[object Object],[object Object]
Type of herpesviruses that can cause infection in oral and perioral tissues: ,[object Object],[object Object],[object Object],[object Object],[object Object]
DNA Viruses ,[object Object],[object Object],[object Object],[object Object]
DNA Viruses ,[object Object],[object Object],[object Object],[object Object]
DNA Viruses ,[object Object],[object Object],[object Object],[object Object]
RNA Viruses ,[object Object],[object Object],[object Object],[object Object],[object Object]
RNA Viruses ,[object Object],[object Object],[object Object]
RNA Viruses ,[object Object],[object Object],[object Object],[object Object]
RNA Viruses ,[object Object],[object Object],[object Object],[object Object]
Retroviruses: ,[object Object],[object Object],[object Object]
Medically important viruses in this family   ,[object Object],[object Object],[object Object],[object Object]
Viral Replication ,[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object]
Prion and prion-induced disease ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
pathogenesis ,[object Object],[object Object]

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Viruses and prion

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  • 3. VIRUSES * One of the smallest forms of microorganisms and infects other forms of live: Animal --- Plants --- Bacteria * They can cause oral and orofacial disease - - produces oral signs of systemic infection and transmitted to patients and dental staff
  • 4. Main Features: * Small size (10-100nm). * Genome: either DNA or RNA but never both- ss (single strand) or ds (double strand), linear or circular. * Metabolic activity: Obligate intracellular parasites.
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