What is the connotation of the "red ribbon" sign?

In the late 1980s, some American artists mourned with red ribbons for their companions who died of AIDS. At a world AIDS conference, HIV-infected people and AIDS patients called for people's understanding in unison. A long red ribbon was thrown across the venue, and supporters cut it into small pieces and pinned the folded red ribbon logo on their chests with pins.

Later, many caring organizations, medical institutions and consultation telephones concerned about AIDS were named after "Red Ribbon". The red ribbon has gradually become an international symbol calling on the whole society to pay attention to AIDS prevention, understanding and care for HIV-infected people and AIDS patients.

In the first China AIDS and STD prevention conference and other meetings and activities, the staff sent a red ribbon. China's large-scale public welfare literary evening for World AIDS Day was also named "Floating Red Ribbon".