where did the new form of pneumonia sars start
Timeline of the SARS outbreak On November 16, 2002, an outbreak of what is believed to be severe acute respiratory syndrome (SARS) began in the Guangdong province of China, which borders on Hong Kong. The first case of infection was speculated to be a farmer in the Shunde district of Foshan County. The People's Republic of China (PRC) notified the World Health Organization (WHO) about this outbreak on February 10, reporting 305 cases (including 105 health-care workers) and 5 deaths;[1] it was later reported that the outbreak in Guangdong had peaked in mid-February, but that appears to be false, as later 806 infections and 34 deaths were reported.[2]
Swine influenza The H1N1 form of swine flu is one of the descendants of the strain that caused the 1918 flu pandemic.[64][65] As well as persisting in pigs, the descendants of the 1918 virus have also circulated in humans through the 20th century, contributing to the normal seasonal epidemics of influenza.[65] However, direct transmission from pigs to humans is rare, with only 12 recorded cases in the U.S. since 2005.[66] Nevertheless, the retention of influenza strains in pigs after these strains have disappeared from the human population might make pigs a reservoir where influenza viruses could persist, later emerging to reinfect humans once human immunity to these strains has waned.[67]