1. Salmonella Serotype Montevideo Infections associated with chicks — Idaho, Washington and Oregon. Spring 1995 and 1996;Centers for Disease Control;MMWR Morb Mortal Wkly Rep,1997
2. Salmonellosis associated with chicks and ducklings — Michigan and Missouri. Spring 1999;Centers for Disease Control;MMWR Morb Mortal Wkly Rep,2000
3. Outbreak of salmonellosis associated with chicks and ducklings at a children's nursery;Public Health Laboratory Service;Commun Dis Rep CDR Suppl,2000
4. South Australian Health Commission.Petting Zoo Infection Control Guideline: for petting zoo operators education and childcare services and environmental health officers. Available at:http://www.health.sa.gov.au/pehs/PDF‐files/petting‐zoos‐guidelines.pdf(accessed Apr 2003).
5. Centers for Disease Control.Recommendations: farm animal contact. Available from:http://www.cdc.gov/ncidod/dbmd/outbreak/recomm_farm_animal.htm(accessed Apr 2003).