There is no "tetanus vaccine". There is Tdap/ DTap. Stepping on rusty nails was from a time when horse droppings might be around. Have you seen any horses recently? Even if there was horses is there really any evidence to support this 'vaccine' working or taking 'pertissis' with it? Pertussis is one of the worst jabs for a 'disease' that had declined to 9 deaths a year in the 80s.