References : Online

• • ! http://americanhistory.si.edu/polio/virusvaccine/how.htm
  • • http://americanhistory.si.edu/polio/lifecycle/index.htm
  • All the Virology on the WWW : http://www.tulane.edu/
  • Wikipedia : http://www.wikipedia.org
  • http://www.gsbs.utmb.edu/microbook/ch053.html
  • http://www.ratsteachmicro.com/Picorna_notes/HCOE_CAI_Review_N ..
  • http://dengueinfo.org/dengueinfo/
  • http://www.cdc.gov/
  • ! HepA,B,C : http://www.immunize.org/catg.d/p4075abc.htm
  • http://www.drugs.com/pdr/Havrix_Vaccine.html
  • http://www.microbiology.wustl.edu/sindbis/sin_genes
  • http://maxshouse.com/virology/coronaviridae_table_of_contents.htm