Microbiology Avian influenza HA viruses bind A Beta 2-3 sialic acid receptors B Alpha 2-3 sialic acid receptors C Beta 2-6 sialic acid receptors D Alpha 2-6 sialic acid receptors π‘ Explanation Avian influenza HA viruses bind β Correct Answer: D. Alpha 2-6 sialic acid receptors