KIR2DL1 gene is a surrogate marker of protection against infection-related hospitalization among HIV-1 unexposed versus exposed uninfected infants in Cameroon by Simeni, LK, Ekali, GL, Yengo, CK, Wouambo, RK, Fischer, J, Bessong, OMA, Fokam, J, Yindom, L, Nguedia, JCA