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Author: mistryland
Just love Art
ARBOVIRUSES (Including HIV)
All arboviruses are transmitted by arthropods (arthropodborne) such as mosquitoes and ticks from the wild animal reservoir to humans. FLAVIVIRUS Transmission – For effective transmission to occur,…… Read more “ARBOVIRUSES (Including HIV)”
HEPATITIS VIRUSES
Main site of infection is the liver. These five are hepatitis A virus (HAV), hepatitis B virus (HBV), hepatitis C virus (HCV), hepatitis D virus (HDV, delta…… Read more “HEPATITIS VIRUSES”
RNA NONENVELOPED VIRUSES
PICORNAVIRUSES The genome RNA is unusual because it has a protein on the 5′ end that serves as a primer for transcription by RNA polymerase. Picornaviruses replicate…… Read more “RNA NONENVELOPED VIRUSES”
RNA ENVELOPED VIRUSES (Orthomyxoviruses, Paramyxoviruses, Coronaviruses, Togaviruses, Rhabdoviruses, Retroviruses)
ORTHOMYXOVIRUSES Influenza Virus Disease— Influenza A virus causes worldwide epidemics (pandemics) of influenza, influenza B virus causes major outbreaks of influenza, and influenza C virus causes mild…… Read more “RNA ENVELOPED VIRUSES (Orthomyxoviruses, Paramyxoviruses, Coronaviruses, Togaviruses, Rhabdoviruses, Retroviruses)”
DNA Non – enveloped viruses
ADENOVIRUSES Important Properties -There are 41 known antigenic types; the fiber protein is the main type-specific antigen Types 3, 4, 7, and 21 cause respiratory disease Types…… Read more “DNA Non – enveloped viruses”
DNA Enveloped Viruses
HERPES VIRUSES The herpes virus family contains six important human pathogens: Herpes simplex virus type 1 Herpes simplex virus type 2 Varicellazoster virus Cytomegalovirus Epstein-barr virus…… Read more “DNA Enveloped Viruses”
Introduction to Virology – 2
Viruses are characterized by the following features: (1) Viruses are particles composed of an internal core containing either DNA or RNA (but not both) (2) Viruses must…… Read more “Introduction to Virology – 2”
Introduction to Virology – 1
Virus is an obligate intracellular parasite containing genetic material surrounded by proteins Not living organisms, cannot produce energy or synthesize proteins independently, host cell machinery is needed…… Read more “Introduction to Virology – 1”
