I have the opportunity to present a poster at the Africa HIV/AIDS conference in Rwanda but without scholarship. The conference holds in December. Thank you.
I'll take a wild guess and say this is ICASA. Most times scholarships are provided by the organizers to such conferences. If you don't get this, you can look through their website to see sponsors including the pharmaceuticals. In some rare events, if your research aligns with their goals, they may be interested but I won't be too sure about this route. That would imply that you get to send some cold mails. Best wishes.
I can guess from your name you're from West Africa. You could have applied for a West African Research Grant sponsored by West African Research Association at Boston University