The new strain is called HIV-1 group M subtype L, related to the first collection done in the 1980s in the Democratic Republic of Congo (DRC).

A research group at the medical-device and health care giant Abbott has discovered a new strain of human immunodeficiency virus, or HIV—the first to be identified in 19 years.

What are possible implications on current detection protocols and treatment? More via the Journal of Acquired Immune Deficiency Syndromes.
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Death (%) trends due to HIV/AIDS in the following select countries versus globally:

Source: IHME/GBD 2017/University of Washington