GEO 210 Lecture Notes - Lecture 10: Guangdong, Oseltamivir, Common Cold
Document Summary
Viruses affect birds and not threat: but mutate and these strains can affect humans. Antiviral d rugs (such as tamiflu) do not prevent the disease from entering body but help the body fight disease once arrives. 90-95 percent of respiratory viruses (bird flu, common cold and influenza) enter our odies when we touch the mucous membranes of our eyes and nose with our fingernails. First line of defence is hand washing: every time after visit to toiler, handle poultry raw, uncooked eggs and birds. In past following trade routes: but involved travel by boat and railroads. 2003 sars started in guangdon province of china. Droplets can last up to 8 hours. Leading international sources of passenger traffic into canada. Ontario spent over billion dollars to control outbreak. Had devastating economic and social import on toronto. Tourism sustained 350m loss and retail 380m compared with usual seasonal business.