In: Handbook of Disease Outbreaks: Prevention… ISBN: 978-1-60876-224-8 Editor: Albin Holmgren and Gerhard Borg © 2009 Nova Science Publishers, Inc. Handbook of Disease Outbreaks: Prevention, Detection and Control. Nova Science Publishers, Inc. 2009, N.York, USA. ISBN: 978-1-60876-224-8. Editors: Albin Holmgren and Gerhard Borg