Last week I stumbled upon an article which stated that vaccination from polio is totally unnecessary for infants in first world countries. The article cited a bunch of questionable sources like mercola.com, but also had some references to information provided by WHO.
I decided to check what WHO says about it. WHO page about polio has a link to Data and statistics, which states, that in past couple of years there have been very few cases of polio (100-200 cases a year - all of them in Afghanistan, Nigeria and Pakistan).
So I wonder: are claims, that vaccination from polio is not necessary, reasonable? It looks like they are fighting a disease that's almost non existent (as opposed to influenza for example, of which there are 3 to 5 million cases of serious illness each year).