The estimated prevalence rate of adults living with HIV infection in MENA is one of the lowest in the world. To date, no data on the genetic characteristics of isolates from HIV/AIDS patients in Algeria were available. This study aimed to identify species and subtype families prevalent in Algerian HIV-infected patients and contribute to the molecular epidemiology mapping of in the MENA region. A total of 350 faecal specimens from HIV/AIDS patients were analysed using microscopy, and a infection was identified from 33 samples, with 22 isolates successfully sequencing and confirming species and subtypes. Based on sequence analysis, 15 isolates were identified as with family subtypes IIa ( = 7) and IId ( = 8), while five were identified as (family subtypes Ia ( = 2) and Ib ( = 3)) and two as . The subtype families IIa and IId predominated, suggesting potential zoonotic transmission. More extensive sampling of both humans and farm animals, especially sheep, goats and calves, as well as a collection of epidemiological data are needed for a better understanding of the sources of human infections in Algeria.
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