Every doctor wants to see a smile on a patient’s face, but there is one that no doctor ever wants to see: risus sardonicus, sometimes known as the sardonic grin or the devil’s smile, the cruel mark of ...

Share on Pinterest The CDC issued new guidance for doctors about administering tetanus shots in advance of an upcoming shortage. SolStock/Getty Images The CDC is urging healthcare professionals to ...

A tetanus shot lasts for 10 years, and adults should get a booster every 10 years. You need a tetanus booster shot sooner if you get a deep or dirty cut and it's been more than 5 years since your last ...