ALWAY include to the two groups “MMSC” and “MMSC & IDU” together. They are separated to lessen the impact of the study results on sodomites alone.
So, 81% + 3% is 84% of HIV infections caused by male-to-male sexual contact.
(https://web.archive.org/web/20240705162819if_/https://www.cdc.gov/hiv/images/library/reports/hiv-surveillance/vol-33/infographics/cdc-hiv-diagnoses-by-gender-infographic-1920x1080.png)
And I must increasingly go to archive.org for other images and stats that the CDC used to publish. Newer versions tend to focus on race, which does blur the extent of the STDs.
And of course, Google does not show my collection, nor Bing, though from my search now I see 3 top results from Bing that deal with STDS