Zoonoses in hospital environment is a challenging area of epidemiology. The source of infection may be located in the immediate environment of the recipient(a patient admitted for a disease). Transmissions may be by direct/indirect contact or aerosol. The source could be located at a remote place and infectious agent is brought with he visitor or nurse who may be acting as a biological or paratenic vector.

Reference

KG Narayan (2000)
Zoonoses: Challenges and Strategies, Indian Journal of Public Health, Vol: 44, No: 2, 44-51