Every year new flu viruses arise in the world, and yet most of the time we have one or more lymphocytes that can respond to these new viruses. How is this so?
Flu vaccine - Design ways to explore the question "Is the flu vaccine effective?"
What are the causes of influenza virus epidemic and pandemics? - Influenza virus causes both epidemics every few years, and pandemics every few decades. This section describes how the changes in the virus are responsible for generating epidemics and pandemics.
Viruses Mutations - The survival of viruses is a great example of natural selection and survival of the fittest. One such example is HIV. HIV reproduces very quickly (about 10 million new viruses per day. HIV lacks the ...
Bacteria and Viruses - List and describe three distinct differences between bacteria and viruses.