> Since the late 1990’s British farmers have been vaccinating hens against salmonella [...] Amazingly, this measure has virtually wiped out the health threat in Britain.
"Amazingly"? No not really! Vaccination stops disease. It's completely expected, not amazing at all.
edit: Likewise it's not "amazing" that cases of Diptheria, Measles, Polio, etc have been drastically reduced - by 100% in some cases - since widespread vaccination began in the USA (source: http://www.forbes.com/sites/matthewherper/2013/02/19/a-graph... )
"Amazingly"? No not really! Vaccination stops disease. It's completely expected, not amazing at all.
edit: Likewise it's not "amazing" that cases of Diptheria, Measles, Polio, etc have been drastically reduced - by 100% in some cases - since widespread vaccination began in the USA (source: http://www.forbes.com/sites/matthewherper/2013/02/19/a-graph... )