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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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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.

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