Given the task definition and input, reply with output. In this task, you're given a question, along with three passages, 1, 2, and 3. Your job is to determine which passage can be used to answer the question by searching for further information using terms from the passage. Indicate your choice as 1, 2, or 3.

Question: Which of scientists who made new discovery in bacteriology in New Oreleans was the oldest? Passage 1:Feith has appeared on several television series, such as the Canadian Documentary series Mayday (also known as Air Emergency in the United States and Air Crash Investigation in other parts of the world), Survival in the Sky, and, most recently, Seconds from Disaster. He hosted his own short-lived series Secrets of the Black Box on the History Channel, highlighting the major investigations that he led, along with the controversial and conspiracy theory-riddled KAL007 investigation. He appeared in a made-for-TV movie Crash: The Mystery of Flight 1501 as the co-pilot of the ill-fated DC-9. He is well known for his frequent public speaking engagements at schools, aviation groups and trade associations. In his spare time he hosts "Hangar Flying Today," a radio program in Denver, Colorado, near where he currently resides. Feith contributes articles to Business & Commercial Aviation magazine, including “Avoiding The Beast Below,” September 2002. He appears regularly as a guest aviation safety and security expert on KUSA-TV, NBC, MSNBC, while maintaining a busy speaking schedule with The Aviation Speakers Bureau.
 Passage 2:Juan Martín del Potro reached the quarter-finals of the first slam of the year in the Australian Open losing to Roger Federer. He then reached his first final of the year at the ABN AMRO World Tennis Tournament losing to Federer once again. However, he bounced back by winning his first title of the year at the Open 13 defeating Michaël Llodra in the final. At the Estoril Open, successfully defended his title by defeating Richard Gasquet . At the French Open he reached the quarter-finals but fell to Federer for the fifth time in the year despite leading two sets to love he lost. At Wimbledon he was handily defeated by David Ferrer in the fourth round. He bounced back at the Olympics winning the Bronze Medal match over Novak Djokovic after losing to Federer in the semifinals. At the US Open he reached his third slam quarter-finals of the year but lost once again this time to Djokovic. He won his third title of the year at the Erste Bank Open defeating qualifier Grega Žemlja in the final. At the Swiss Indoors Basel, Del Potro got his fourth championship of the year after beating Roger Federer. This is the third time del Potro has qualified for the event.
 Passage 3:In 1880, the Commission concluded that the solution of yellow fever causality must await further progress in the new science of bacteriology. Sternberg was soon sent to New Orleans to investigate the conflicting discoveries of Plasmodium malariae by Alphonse Laveran, and of Bacillus malariae by Edwin Klebs and Corrado Tommasi-Crudeli. His report (1881) declared that the Bacillus malariae had no part in the causation of malaria. The same year—simultaneously with Louis Pasteur—he announced the discovery of the pneumococcus, eventually recognized as the pathogenic agent of lobar pneumonia. He was the first in the United States to demonstrate the Plasmodium organism as cause of malaria (1885) and to confirm the causitive roles of the bacilli of tuberculosis and typhoid fever (1886). He was the first scientist to produce photomicrographs of the tubercule bacillus. He was also the earliest American pioneer in the related field of disinfection in which he began with experiments (1878) with putrefactive bacteria. This work was continued in Washington and in the laboratories of Johns Hopkins Hospital in Baltimore, under the auspices of the American Public Health Association. For his essay "Disinfection and Individual Prophylaxis against Infectious Diseases" (1886), later translated into several languages, he was awarded the Lomb Prize. He oversaw creation the US Army enlisted hospital corps ("medics") in 1887.
3