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 💡 Explanation Avian influenza HA viruses bind ✓ Correct Answer: D. Alpha 2-6 sialic acid receptors