What makes Hep C concerning as far as its ability to be stable in O2?
Transmission through respiration
What are the cancer causing viruses called?
What family of viruses does HIV belong to?
What family of viruses does 5th disease belong to?
What is the term for a viruses effect on a cell?
CPE - Cytopathic effect
What are some of the external changes that can occur to a cell after it has been infected by a virus?
1. loss of contact inhibition (cause excessive growth with no function) 2. Syncytium (fusion of the cells) 3. Permeability changes 4. Ag change (so immune either ignores cell or attacks it) 5. Interferons
What are some of the internal changes that can occur to a cell after it has been infected by a virus?
1. Inclusion bodies 2. DNA changes 3. Changes in cellular functions
What are some important interferons?
Alpha Beta Gamma
What is the function of Alpha and Beta interferons?
They are released by infected cells to warn healthy ones so they will build intercellular antiviral proteins