Hu Jintao faced great resistance. The first crisis of Hu's leadership happened during the outbreak of SARS in 2003. Following strong criticism of China for initially covering up and responding slowly to the crisis, he dismissed several party and government officials, including the health minister, who supported Jiang, and the Mayor of Beijing, Meng Xuenong, widely perceived as Hu's protégé. On 15 November 2002, a new Hu Jintao-led Politburo nominally succeeded Jiang. Although Jiang, then 76, stepped down from the powerful General Secretary and the Politburo Standing Committee to make way for a younger "fourth generation" of leadership, there was speculation that
Hu Jintao four times (2008, 2007, 2005 and 2004) on the Time 100 annual list of most influential people. Political observers indicate that Hu distinguished himself from his predecessor in both domestic and foreign policy. Hu's political philosophy during his leadership is summarized by three slogans — a "Harmonious Socialist Society" domestically and "Peaceful Development" internationally, the former aided by the Scientific Development Concept, which seeks integrated sets of solutions to arrays of economic, environmental and social problems, and recognizes, in inner circles, a need for cautious and gradual political reforms. The Scientific Development doctrine has been written into the Communist Party