This year, over 300 people in California got sick caused by bacteria called Salmonella Heidelberg. The Centers for Disease Control and Prevention believed that this kind of bacteria came from chickens that were probably injected with antibiotics. About 40% of the patients who reported their sickness have been hospitalized. In the food industry website. Based on 40 years of scientific researches, it’s been approved that using antibiotics to make food make animals grow faster and bigger but in the other hand it make them more sick cause several diseases to human. The FDA said that drug makers sold more than 30 million pounds of antibiotics in 2011 in order to use them in chickens and other food animals. In 2012, President Obama said that antibiotics should be used only for medical issue and treatment not for making animals bigger.