We've all seen the pictures of overcrowded trains in India.
It's not hard imagining a lot of people getting injured and killed. And a lot were.
The number of accidents in 1960-61 was 2,131, which came down to 840 in 1970-71. The total number of accidents in 1980-81 was recorded at 1,013, in 1990-91 it stood at 532 accidents, and in 2010-11 there were 141 such cases, writes Business Today.
At a time when the miraculous success of vaccines has transformed the battle against the pandemic it is fitting to recall the general idea, and unexpected history, behind vaccination, writes Matt Ridley, bestselling author of The Rational Optimist and How Innovation Works.