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EV-A and receptor usage. There are 25 serotypes in EV-A. Sixteen serotypes whose natural host is human are shown. A group of closely related viruses (EV-A71, CV-A16, CV-A14 and CV-A7), use SCARB2 as the main receptor. EV-A71 also uses attachment receptors. Other groups, including CV-A2, CV-A3, CV-A4, CV-A5, CV-A6, CV-A8, CV-A10, and CV-A12, use KREMEN1
