Final answer:
The exact percentage of HIV cases among females in the US is unstated in the provided reference, but the disease significantly affects low-income African-American women and is the leading cause of death among African American women aged 24 to 35.
Step-by-step explanation:
The specific percentage of HIV cases among females in the US is not provided in the reference information given; however, it is noted that AIDS remains a significant public health issue, especially among low-income African-American women. Given that HIV/AIDS has been identified as a disease of poverty, women in this demographic are more susceptible to the disease due to poorer access to healthcare, which might impede early diagnosis and increase the likelihood of transmission. Despite significant progress in reducing the annual death toll from AIDS in the US by 70 percent over the past 15 years, the infection is still the leading cause of death for African American women aged 24 to 35.
To find more precise data on the percentage of HIV cases among females in the US, one can look at reports from organizations such as the Centers for Disease Control and Prevention (CDC), which provides regularly updated statistics on HIV infection rates by gender, race, and other demographics. It's also important to note that while the information provided here highlights the serious impact of HIV/AIDS in sub-Saharan Africa, different regions have varying infection rates.