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The 15 pages that link to Influenza A virus, each with the reason it gives.

• Avian influenzaNarrower topic: Avian influenza is caused by influenza A viruses, whose subtypes shape host range and disease.

• Antigenic variationBroader topic: Its surface glycoproteins change through drift and, more rarely, reassortment-driven shift.

• Influenza vaccineBroader topic: Seasonal vaccines commonly target selected influenza A subtypes.

• Antigenic driftNarrower topic: Its surface antigens drift continually, shaping seasonal immune escape.

• Antigenic shiftNarrower topic: Antigenic shift occurs in this virus type, whose segmented genome makes reassortment possible.

• InfluenzaBroader topic: It is the type responsible for most influenza pandemics.

• Lipid raftRelated: Its budding and envelope assembly have been studied in relation to raft-like membrane domains.

• HemagglutininNarrower topic: Hemagglutinin is one of its two principal surface glycoproteins.

• NeuraminidaseNarrower topic: Its neuraminidase proteins define one of the major subtype designations used for influenza A.

• Host rangeBroader topic: Its broad but variable host range enables animal reservoirs and occasional cross-species infections.

• Influenza virusBroader topic: Its broad host range and subtypes make it the main source of pandemic influenza.

• AmantadineRelated: Amantadine once treated influenza A by interfering with a viral ion channel.

• Influenza B virusCompared with: Its broad host range and pandemic potential contrast with influenza B’s mostly human circulation.

• RimantadineNarrower topic: Rimantadine was used against this virus, not influenza B.

• Viral structuresBroader topic: Its envelope and internal ribonucleoproteins illustrate layered viral organization.