As reported in other studies, RSV, INF, and HMPV were mostly detected as single viral infections.26, 27 RSV, HRV, and HPIV were also the most predominant viruses detected in children aged younger than 5 years in a previous study conducted in Niger.8 RSV is considered to be a major cause of ARI in children aged younger than 5 years,26, 28, 29, 30 and it was the most commonly detected virus also in this study (149/638; 23.3%). The gene discussed is CBLIF; the disease is viral infectious disease.