BIOL 1150 Lecture Notes - Lecture 3: Viral Shedding, Flu Season, Zanamivir
Document Summary
How a virus gets into a cell: attachment, penetration, production of viral genetic information and proteins, assembly of new viruses, release of new viruses. Virus shedding begins 1 day before symptoms and continues for 5-7 days. Virus name is based on these proteins. Virus is sensitive to uv and humidity. Flu season occurs during the cold half of the year in each hemisphere. Survives longer on surfaces in the winter. Recommended for everyone 6 months and older. Nasal spray: live attenuated influenza vaccine (laiv) Not recommended for the very young or elderly. Mild flu-like symptoms associated with this one. Two influenza a strains, one influenza b. Use viral rna to make viral dna in process of reverse transcription. Then viral dna can insert itself into host"s dna to go through transcription and translation to make copes of virus. Hiv is a virus that carries its genetic instructions in the form of rna rather than dna.
