PMC:7712180 / 4215-4692 JSON TXT

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Id	Subject	Object	Predicate	Lexical cue	tao:has_database_id
208	106-119	Gene	denotes	neuraminidase	Gene:4758
217	33-50	Species	denotes	influenza viruses	Tax:11308
218	197-201	Species	denotes	H1N1	Tax:114727
219	203-207	Species	denotes	H3N2	Tax:119210
220	212-216	Species	denotes	H5N1	Tax:102793
221	302-308	Species	denotes	humans	Tax:9606
269	336-344	Disease	denotes	zoonotic	MESH:D015047

Id	Subject	Object	Predicate	Lexical cue
T24	17-160	Sentence	denotes	Among all known influenza viruses, only IAVs are subtyped according to their HAs (H) and neuraminidase (NA or N) spikes into H1–H18 and N1–N11.
T25	161-355	Sentence	denotes	Several subtypes of IAVs, including H1N1, H3N2 and H5N1, have crossed the species barrier to infect a variety of birds and mammals including humans, indicating that they have zoonotic potential.
T26	356-450	Sentence	denotes	IAVs not only mutate quickly but also prefer to reassort with other IAVs to form a new strain.