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Vaccines prevent between 2.5 and 4 million deaths every year.
Asthma cases in Americans are about 75% higher today than they were in 1980.
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.
Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.