Snake-bite causes death of more than 100,000 people across the globe annually. Of more than 3000 known species of snakes, only 10% are venomous. Death due to snake-bite is common in all most continents. But, surprisingly, the figures in Europe is, on an average, one death for every 3-5 years!!!
On encountering a case of snake-bite, one should find with certainty that the person has been bitten by a poisonous snake. If there are no distinct fang marks and if local pain, swelling, numbness or weakness does not appear within 20 minutes, it is unlikely to be caused by a poisonous snake.