Question

Why is the hiv virus the most challenging virus in the last 40 years?

Answer 1

One of the biggest challenges in the HIV response has remained unchanged for 30 years: HIV disproportionally affects people in vulnerable populations.

Step-by-step explanation:

So far, HIV has proved almost impossible to eradicate from the human body because the virus integrates into long-lived immune system cells and remains dormant in those cells for many years. In most viral infections the immune system recognises infected cells and kills those cells.