Doravirine/Islatravir (DOR/ISL) in Pediatric Participants With Human Immunodeficiency Virus Type 1 (HIV-1) Who Are <18 Years of Age and Weigh ≥35 kg (MK-8591A-028)

Perinatal HIV Research Unit ( Site 1902), Johannesburg

Wits Reproductive Health and HIV Institute (WRHI) ( Site 1903), Johannesburg

Empilweni Services and Research Unit ( Site 1904), Johannesburg

King Edward Hospital ( Site 1900), Durban

Chulalongkorn University ( Site 1602), Bangkok

Siriraj Hospital ( Site 1601), Bangkok

Children's National Medical Center ( Site 1816), Washington D.C.

Azienda Ospedaliera Luigi Sacco ( Site 1300), Milan

Johns Hopkins University ( Site 1800), Baltimore

Duke University ( Site 1807), Durham

Emory Children's Center ( Site 1805), Atlanta

Research Institute for Health Sciences ( Site 1603), Chiang Mai

Infectious Clinical Hospital #2 ( Site 1501), Moscow

FGU Republican Clinical Infectious Hospital of Roszdrav ( Site 1500), Saint Petersburg

Saratov Regional Clinical Center for Prophylaxis and Control of AIDS ( Site 1505), Saratov

Krasnoyarsk Regional Center for Prevention and Control of AIDS ( Site 1507), Krasnoyarsk

IRCCS Ospedale Pediatrico Bambino Gesu ( Site 1301), Roma