THE YEAR IN MEDICINE FROM A TO Z

摘要

It was a year of old scourges and new drugs, from the first vaccine that prevents cancer to a bug that spoiled an entire crop of California spinach. Hoping to sharply cut HIV/AIDS transmission rates in the U.S., the Centers for Disease Control and Prevention (CDC) took the unusual step of recommending that doctors ask all patients from ages 13 to 64 whether they want to be tested for the virus.