New vaccine could fight nicotine addiction Cigarette smokers who are having trouble quitting because of nicotine's addictive power may some day be able to receive a novel antibody-producing vaccine to help them kick the habit. The average cigarette contains about 4 000 different chemicals that when burned and inhaled-cause the serious health problems associated with smoking. But it is the nicotine in cigarettes that, like other addictive substances, stimulates rewards centers in the brain and hooks smokers to the pleasurable but dangerous roun Ronald Crystal, who chairs the departineat of genetic mat Weill-Cornell Medical College in New York, where researchers are developing nine accine, said the idea is to stimulate the smoker's immune system to produce a lor mune proteins to destroy the nicotine molecule before it reaches the brain 02 -Muitas pessoas tentam parar de fumar, mas fracassa e sucumbem ao vicio. Na Lentativa de ajudar os fumantes, pesquisadores da Weill nil Medical College estão desenvolvendo uma vacina que, retire do texto dois verbos uma preposição uma conjunção e em seguida formule frases com os mesmo em inglês?​