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Treponema pallidum
Trichomonas vaginalis
Trypanosoma cruzi
Ureaplasma parvum
Ureaplasma urealyticum
Usutu Virus
Vesicular stomatitis Virus
Veterinary Rotavirus A
Veterinary Rotavirus B
Veterinary Rotavirus C
Vibrio (all species)
Vibrio cholerae (All subspecies)