Iki gikoresho gikoreshwa mugushakisha ubuziranenge bwa SARS-CoV-2, virusi ya grippe A, virusi ya grippe B, adenovirus, pneumoniae, chlamydia pneumoniae, virusi yubuhumekero na virusi ya parainfluenza (Ⅰ, II, III, IV) mu muhogo. intangangore, metapneumovirus yumuntu, ibicurane bya haemophilus, streptococcus pneumoniae, klebsiella pneumoniae, staphylococcus aureus, pseudomonas aeruginosa, legionella pneumophila na acinetobacter baumannii.