Group 2 comprised 8 persons who had intermittent but
regular (several times/week) direct contact with the infected
herd (animal management, feeding, manure removal)
and included veterinary staff and attendants. Because this
herd was also used for veterinary teaching and research,
animals were frequently handled for clinical examination
and specimen collection. With the exception of disposable
gloves, which were worn by the veterinarians during examinations,
personal protective equipment (masks, gloves,
eye protection) was not used.