His latest initiative was conducting live public HIV testing of youth in the U.S. in order to end the stigma of AIDS among young people.

[20] While there, he conducted ethnographic research that was later reported to Harvard University's Peabody Museum of Archaeology and Ethnology in a publication that included Chittick's original drawings of cultural artifacts.

[21] In the mid-80s, Chittick started an art publishing company funded by his father called Paté Poste Adcards in Boston's Beacon Hill.

In his doctoral thesis, he predicted a future HIV epidemic among maturing teens that engage in unprotected sex and lack medically accurate knowledge, often because of censorship.

[29] He promoted the idea of a global network of trained youth volunteers to spread the message of HIV prevention to their peers, hence the name PeerCorps,[30] which was registered as a service mark in 1997.

In 2006, Chittick and TA-PC launched the first-ever interactive global webcast for teens by satellite uplink on World AIDS Day that attracted young people from 80 countries.

[34] The webcasts have become a regular part of TA-PC's outreach and have since been conducted from a variety of locations, including Harvard's Carpenter Center for the Visual Arts [35] and in Kinshasa in the Democratic Republic of Congo.

[36] In 2012 HIV home test-kits were approved by the Food and Drug Administration (FDA) for over-the-counter sale[37][38] and Chittick began to conduct live oral swab testing at public venues.

[39] Live testing has been held in parks, malls and on street corners, wherever teens gather, to both reduce the stigma surrounding AIDS and let young people know that the HIV self-testing kits are available.

Chittick was always present at testing events to counsel youth and supervise TA-PC's college interns called “Teen-Testers" that help assist the twenty-minute procedure.

[39] Initially, the public aspect of the testing did not sit well with some local authorities in southeastern Virginia, but Chittick argued it was protected under freedom of speech.

[40] After a formal complaint was lodged with the state's Attorney General, TA-PC was allowed to continue on the legal basis it was the right of all consenting youths to choose when and where they are tested.

On September 7, 2013, TeenAIDS and Chittick set the first world record for simultaneously testing the most number of youth in front of a public audience and the press.