Figure 1. Estimated New HIV Infections, Extended Back-Calculation Model, 1977–2006, Overall
High Resolution Version
This figure shows the overall estimated new HIV infections from 1977 to 2006, using the extended back-calculation model. The estimates are for 2-year intervals during 1980–1987, 3-year intervals during 1977–1979 and 1988 –2002, and a 4-year interval for 2003–2006.

Figure 2. Estimated Number of New HIV Infections, Extended Back-Calculation Model, 1977– 2006, by Transmission Category
High Resolution Version
This figure shows the estimated new HIV infections by transmission category from 1977 to 2006, using the extended back-calculation model. The estimates are for 2-year intervals during 1980–1987, 3-year intervals during 1977–1979 and 1988 –2002, and a 4-year interval for 2003–2006. The transmission categories are men who have sex with men (MSM), injection drug use (IDU), MSM-IDU, and high-risk heterosexual.

Figure 3. Estimated New HIV Infections, 2006, by Transmission CategoryFigure 3. Estimated New HIV Infections, 2006, by Transmission Category
High Resolution Version
This pie chart, figure 3, shows the estimated new HIV infections in 2006 by transmission category. Men who had sex with men or MSM accounted for 53 percent, high-risk heterosexual accounted for 31 percent, injection drug user or IDU accounted for 12 percent and cases that were both MSM and IDU accounted for 4 percent of the estimated new HIV infections in 2006.

Figure 4. Estimated Rates of New HIV Infections, 2006, by Race/Ethnicity
High Resolution Version
This bar chart shows the estimated rates of new HIV infections in 2006 by Race/Ethnicity. Rates shown on the chart include: 83.7 new infections per 100,000 population among blacks, 29.3 new infections per 100,000 population among Hispanics, and 11.5 new infections per 100,000 population among whites in 2006. American Indians/Alaska Natives has 14.6 new infections per 100,000 population, and Asians/Pacific Islanders had 10.3 new infections per 100,000 population.

Figure 5: Estimated Number of New HIV Infections, Extended Back-Calculation Model, 1977-2006, by Race/Ethnicity
High Resolution Version
This figure shows the estimated new HIV infections by race/ethnicity category from 1977 to 2006, using the extended back-calculation model. The estimates are for 2-year intervals during 1980–1987, 3-year intervals during 1977–1979 and 1988 –2002, and a 4-year interval for 2003–2006. Race/Ethnicities included in the figure are Blacks, Hispanics, Whites, Asians/Pacific Islanders and American Indians/Alaska Natives.

Figure 6. Estimated New HIV Infections, 2006, Overall and by Gender
High Resolution Version
This bar chart shows the estimated new HIV infections in 2006 by gender and overall. Overall, there were 56,300 new cases of HIV infection in 2006. Men accounted for 41,400 new cases, women accounted for 15,000 new cases. Estimates from subgroups do not add to total due to rounding.

Figure 7. Estimated New HIV Infections, Extended Back-Calculation Model, 1977-2006, Overall and by Gender
High Resolution Version
This figure shows the estimated new HIV infections by gender from 1977 to 2006, using the extended back-calculation model. The estimates are for 2-year intervals during 1980–1987, 3-year intervals during 1977–1979 and 1988 –2002, and a 4-year interval for 2003–2006.

Figure 8. Estimated New HIV Infections, 2006, by Age
High Resolution Version
This pie chart shows the estimated new HIV infections in 2006 by age. In 2006, persons ages 13 to 29 accounted for 34 percent of new HIV infections, persons ages 30 to 39 accounted for 31 percent of new HIV infections, persons ages 40 to 49 accounted for 25 percent of new HIV infections, and those more than 50 years of age accounted for 10 percent of new HIV infections.