WHY IS SO DIFFICULT TO GET VACCINES FOR AIDS OR FLU?

VIH Virus (AIDS)  and INFLUENZA Virus (Flu) represent two different ways by which virus can infect our cells and produce infections. They are two of the most mortal virus ever known and, infecting million people all around the world; what is known as pandemics.

Why is so difficult to get a vaccine for AIDS? To understand it, we have to lern how this virus infects cells.

What about Flu virus? Many of you might think this virus is not very dangerous, right?
Actually, this is the most terrifying virus ever known and the virus most likely will cause the next big global pandemic, killing million people around the world, as it already did in the past.

We can see it like that:

To finish this unit, here you have an activities worksheet. Download the PDF and write all the answers in your notebook.

                                                       PDF to download