[1] It was first found in semiaquatic rodents of the genus Oryzomys in tropical forest in the Pará area of Brazil.

[2] It is a member of Clade A of the Tacaribe (or "New World") serocomplex of the family Arenaviridae.

[3] Laboratory workers infected by Flexal virus have exhibited febrile illness.

[3]Flexal virus is listed as a UN 2814 Category A infectious substance.

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