viral infection Flashcards
what is the most common type of viral disease?
common cold, which is caused by a viral infection of the upper respiratory tract (nose and throat)
what are the 4 examples of the common viral disease?
chicken pox, shingles
flu
Herpes
HIV
What are some examples of viral transmission?
Direct Contact
Indirect Contact
Airborne transmission
Faecal-oral transmission
Vector borne transmission
in which way can pathogens enter an organims?
-mucous
-membrane
-respo
-system
-digestive
-Broken skin
what are some general approaches to a diagnosis?
Visual examination/ disease characteristics
Detection of the virus/viral components
Detection of specific antibodies
Virus Isolation
What is ELISA
Enzyme Linked Immunosorbent Assay
HIV steps? 1/7
fusion of HIV to the host cell surface
HIV steps? 2/7
HIV, RNA, RT and intergrase and other viral proteins enter the host cell
HIV steps? 3/7
Viral DNA is formed by RT
HIV steps? 4/7
Viral DNA is transported across the nucleus and integrates into the host DNA
HIV steps? 5/7
new viral RNA is used as genmoic RNA and to make viral proteins
HIV steps? 6/7
new viral RNA and proteins move to the cells surface and a new immature hiv forms
HIV steps? 7/7
virus is released and viral protease cleaves new polyproteins to create mature infectious virus
how is viral isolation achieved?
the sample is introduced into cells maintained in the lab(cell cultures), eggs or animals in an attempt to grow the virus
Prevention/Treatment of Viral Infections
Vaccines
Antiviral drugs
Antiserum
