What progress has been made in the HIV epidemic?

It is now possible to take a combination of HIV-fighting drugs, also called antiretroviral therapy, that prevents AIDS from developing when the virus is in the body.

if you mean where it leads to I say HIV  leads to AIDS or in other words...progress has been made towards the goal of ending the HIV/AIDS epidemic due to advancements in both prevention and treatment.

hope this helps!

not sure if this is what you'r looking for eubacteria and archaebacteria

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.