At this age, the cottontails still cannot live without motherâs milk. 3 day old cottontail (right) next to 14 day old cottontail (left) Seven to Nine Days Old: Similar to a 4-5 day old cottontail, there should not be too much difference at this stage. Eyes should be beginning to open and may look like little slits.
In doing so, the virus destroys the ability of the infected cells to do their job in the immune system. The body then loses the ability to fight many infections. When a person with HIV has an extremely low number of CD4 cells or certain rare infections, doctors call this stage of disease AIDS.
HIV is unique in its ability to compromise the immune system. Learn how the disease progresses and makes patients susceptible to serious complications. Human immunodeficiency virus (HIV) infects the cells of the immune system.In particular, HIV attacks and destroys the T helper lymphocytes, or T-cells, which are crucial to the immune system and immune response.nce a personâs viral load (a measurement of how many cells in your blood are infected with HIV) begins rising to higher and higher levels, this is an indication that the immune system is deteriorating; the disease is reaching a more advanced stage.