This image does a good job of capturing the "limited scope" of the health organizations that created it. However, I think that the ethnographic aspects of this image could be elucidated to a higher degree by discussing particualr the context in which it was found in greater detail.
The subject of this image is exclusion. It suggests that the primary reason to abstain from risky sexual behavior is to be able to conform to the norms of the white, middle class, american family.
This image forces the viewer to asses themselves so as to ascertain whether or not they are "at risk of infection." It creates a general sense of being threatened. The faces have been cut out, which might make some more inclined to imagen themselves or their loved ones as one of the individuals being depicted. However, it is also likely quite othering for many viewers who are not cisgendered, heterosexual, white, and looking to conform to hegemonic conceptions of what constitutes "family."
I am compelled to read the first set of words (in purple) before looking at the rest of the image. Then, I looked at the photo of the nuclear family behind the text. Finally, I read the punch line, written in red at the bottom.
I am curious about where this image comes from. We could see how "you can fuck raw" was located, but this one is left a mystery. Perhaps you could search for an instance in which this image was posted physically/publicly in the world? Or, if it is only digital (which would also be interesting), perhaps you could take a screen shot to show the website as the sort of "digital fieldsite" where this image was discovered. I just think comparing the location of these images might yeild a compelling ethnographic insight.
This almost falls within the realm of propoganda. It combines text and image in ways that is meant to instill fear and judgement. It interpellates the viewer as either responsible and safe, or irresponsible and at risk.