--Roger Cressey, a former senior counterterrorism official at the National Security Council under Presidents Bill Clinton and George W. Bush Source:
Bubonic and septicemic plagues are not normally spread from person to person. Pneumonic plague can be contagious if a person inhales respiratory droplets containing the bacteria from an infected person, which usually requires close contact with the infected individual. Y. pestis is a fragile bacterium and does not last long in sunlight or after it is dried. Plague is treatable with antibiotics, which are especially effective if administered early. Wearing a simple surgical mask can protect a person from pneumonic plague infection. Like many biological agents, there are great challenges associated with producing and employing large quantities of a virulent biological agent. Certainly, plague can be obtained from the environment in a place where it occurs naturally, such as Algeria, but taking that bacterium and producing a large quantity of it in a virulent form and then disbursing it in an efficient manner is another matter entirely." Source: https://wikileaks.org/gifiles/docs/56/564818_algeria-al-qaeda-and-the-plague-.html
Dr.Jill Bellamy is an internationally recognized expert on biological warfare and defence. She has formerly advised NATO and for the past seventeen years has represented a number of bio-pharmaceutical and government clients working on procurement strategy between NATO MS and Washington DC. Her private government relations consultancy Warfare Technology Analytics is based in the Netherlands. Dr. Bellamy's articles have appeared in the National Review, The Wall Street Journal, The Washington Post, The Sunday Times of London, Le Temps, Le Monde and the Jerusalem Post among other publications. She is a CBRN SME with the U.S. Department of Defence, Chemical, Biological, Radiological and Nuclear Defence Information Analysis Center and CEO of Warfare Technology Analytics.