False, but I have no way to explain it :(
Newborns receive a single injection of vitamin K at birth due to the fact that the newborns don't have enough bacteria to make vitamin K.
Vitamin K at birth helps the blood to clot and prevents serious bleeding. In newborns, vitamin K injections can prevent a now rare, but potentially fatal, bleeding disorder called 'vitamin K deficiency bleeding' also known as 'hemorrhagic disease of the newborn'.
While taking its meal (usually between dusk and dawn), an infected mosquito injects immature forms of the parasite, called sporozoites, into the person's bloodstream. The sporozoites are carried by the blood to the liver, where they mature into forms known as schizonts.
A patient will be at increased risk of postpartum bleeding or hemorrhage if the baby she gives birth to is very big. The time spent in labour is also important. If the woman labor for a long time before giving birth, she may have increased risk of postpartum bleeding.