These are easily incorporated into minor wounds which occur in contact with the soil. Tetanus remains an important cause of death in countries, in Asia, Africa and South America, where routine immunisation against the disease is not common. Often the skin wound that leads to tetanus is trivial. Once the bacteria start growing they release a toxin which causes a spasm of the muscles. This can be as soon as 3 days or as late as 21 days after the injury.
Death occurs from spasm of the muscles used for breathing.
Injuries Most frequently are caused in Motor Vehicle accidents. Couple this with poor emergency and medical care and the use of unscreened blood for transfusions and an accident can turn into a nightmare. All the cautions against drink driving, speeding, and unroadworthy vehicles goes many times over in underdeveloped countries. Public transport vehicles while, safer don't usually have seatbelts and often do have bars on the windows, which is not so good if the vehicle catches fire or crashes into deep water with double the recommended number of passengers. Avoid motorcycles, which have the highest accident rate in Australia let alone under developed countries.