As the anti-HIV medications work to stop the virus from making
more copies of itself, the amount of HIV in the blood (viral load)
drops dramatically.
If you miss a dose of your NRTI or NNRTI, HIV can enter some
new CD4 cells.
If you miss a dose of your PI, then HIV can make good copies
of itself to attack more cells.
Although missing a single dose is not a disaster, the more you
miss, the more HIV will copy itself in you.
Stay on anti-HIV medications to keep down viral load
Your medicines are working if the amount of virus in your
blood goes down and remains low.
"Undetectable" means that the number of HIV copies
in the blood is so low that it cannot be measured by blood tests,
but does not mean the virus is gone.
That's why staying on anti-HIV medicines can help you live a
longer, healthier life.