Plague (Deadly Diseases and Epidemics)
Plague (Deadly Diseases and Epidemics) by Donald Emmeluth
English | 30 Dec. 2009 | ISBN: 160413237X | 121 Pages | PDF | 3 MB
English | 30 Dec. 2009 | ISBN: 160413237X | 121 Pages | PDF | 3 MB
Plague has erupted periodically throughout most of human history. The plague bacterium, Yersinia pestis, is transmitted by fleas found on many common mammals and through the air as victims develop respiratory symptoms and suffer from coughing spells.