Final answer:
A Vitamin K injection is given to prevent bleeding in newborns due to Vitamin K deficiency, not to be confused with other vaccines such as Hepatitis B, DTP, or BCG, which protect against infectious diseases.
Step-by-step explanation:
To prevent bleeding in newborns due to Vitamin K deficiency, the injection given is a Vitamin K injection. This injection is crucial for newborns because Vitamin K is necessary for blood clotting, and infants have low levels of it at birth. Vaccines like the Hepatitis B vaccine, DTP (Diphtheria, Tetanus, Pertussis) vaccine, and BCG (Bacillus Calmette-Guérin) vaccine are also given to infants to protect against infectious diseases, but they are not used to prevent bleeding from Vitamin K deficiency.