Final answer:
The Third Pan-African Conference focused on ending colonialism, combatting neocolonialism, and promoting African unity to address health care crises and self-determination issues rooted in the European colonial legacy.
Step-by-step explanation:
The major concerns of the Third Pan-African Conference revolved around the end of colonialism and overcoming the impacts of neocolonialism, aiming to promote unity among African nations.
These objectives were informed by a history of exploitation dating back to the Berlin Conference of 1884, where European powers divided Africa without African representation, causing lasting political and socio-economic issues.
The Pan-African movement strived to address challenges such as health care crises, mainly HIV/AIDS and malaria, and the struggle for self-determination in the wake of newly gained independence.